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c++, c: Introduce -Wkeyword-macro warning/pedwarn - part of C++26 P2843R3 [PR120778]
The following patch introduces a -Wkeyword-macro warning that clang has since 2014 to implement part of C++26 P2843R3 Preprocessing is never undefined paper. The relevant change in the paper is moving [macro.names]/2 paragraph to https://eel.is/c++draft/cpp.replace.general#9 : "A translation unit shall not #define or #undef names lexically identical to keywords, to the identifiers listed in Table 4, or to the attribute-tokens described in [dcl.attr], except that the names likely and unlikely may be defined as function-like macros." Now, my understanding of the paper is that in [macro.names] and surrounding sections the word shall bears different meaning from [cpp.replace.general], where only the latter location implies ill-formed, diagnostic required. The warning in clang when introduced diagnosed all #define/#undef directives on keywords, but shortly after introduction has been changed not to diagnose #undef at all (with "#undef a keyword is generally harmless but used often in configuration scripts" message) and later on even the #define part tweaked - not warn about say #define inline (or const, extern, static), or #define keyword keyword or #define keyword __keyword or #define keyword __keyword__ Later on the warning has been moved to be only pedantic diagnostic unless requested by users. Clearly some code in the wild does e.g. #define private public and similar games, or e.g. Linux kernel (sure, C) does #define inline __inline__ __attribute__((__always_inline__)) etc. Now, I believe at least with the current C++26 wording such exceptions aren't allowed (unless it is changed to IFNDR). But given that this is just pedantic stuff, the following patch makes the warning off by default for C and C++ before C++26 and even for C++26 it enables it by default only if -pedantic/-pedantic-errors (in that case it pedwarns, otherwise it warns). And it diagnoses both #define and #undef without exceptions. From what I can see, all the current NODE_WARN cases are macros starting with __ with one exception (_Pragma). As the NODE_* flags seem to be a limited resource, I chose to just use NODE_WARN as well and differentiate on the node names (if they don't start with __ or _P, they are considered to be -Wkeyword-macro registered ones, otherwise old NODE_WARN cases, typically builtin macros or __STDC* macros). 2025-08-07 Jakub Jelinek <jakub@redhat.com> PR preprocessor/120778 gcc/ * doc/invoke.texi (Wkeyword-macro): Document. gcc/c-family/ * c.opt (Wkeyword-macro): New option. * c.opt.urls: Regenerate. * c-common.h (cxx_dialect): Comment formatting fix. * c-opts.cc (c_common_post_options): Default to -Wkeyword-macro for C++26 if pedantic. gcc/c/ * c-decl.cc (c_init_decl_processing): Mark cpp nodes corresponding to keywords as NODE_WARN if warn_keyword_macro. gcc/cp/ * lex.cc (cxx_init): Mark cpp nodes corresponding to keywords, identifiers with special meaning and standard attribute identifiers as NODE_WARN if warn_keyword_macro. gcc/testsuite/ * gcc.dg/Wkeyword-macro-1.c: New test. * gcc.dg/Wkeyword-macro-2.c: New test. * gcc.dg/Wkeyword-macro-3.c: New test. * gcc.dg/Wkeyword-macro-4.c: New test. * gcc.dg/Wkeyword-macro-5.c: New test. * gcc.dg/Wkeyword-macro-6.c: New test. * gcc.dg/Wkeyword-macro-7.c: New test. * gcc.dg/Wkeyword-macro-8.c: New test. * gcc.dg/Wkeyword-macro-9.c: New test. * g++.dg/warn/Wkeyword-macro-1.C: New test. * g++.dg/warn/Wkeyword-macro-2.C: New test. * g++.dg/warn/Wkeyword-macro-3.C: New test. * g++.dg/warn/Wkeyword-macro-4.C: New test. * g++.dg/warn/Wkeyword-macro-5.C: New test. * g++.dg/warn/Wkeyword-macro-6.C: New test. * g++.dg/warn/Wkeyword-macro-7.C: New test. * g++.dg/warn/Wkeyword-macro-8.C: New test. * g++.dg/warn/Wkeyword-macro-9.C: New test. * g++.dg/warn/Wkeyword-macro-10.C: New test. * g++.dg/opt/pr82577.C: Don't #define register to nothing for C++17 and later. Instead define reg macro to nothing for C++17 and later or to register and use it instead of register. * g++.dg/modules/atom-preamble-3.C: Add -Wno-keyword-macro to dg-additional-options. * g++.dg/template/sfinae17.C (static_assert): Rename macro to ... (my_static_assert): ... this. (main): Use my_static_assert instead of static_assert. libcpp/ * include/cpplib.h (struct cpp_options): Add cpp_warn_keyword_macro. (enum cpp_warning_reason): Add CPP_W_KEYWORD_MACRO enumerator. (cpp_keyword_p): New inline function. * directives.cc (do_undef): Support -Wkeyword-macro diagnostics. * macro.cc (warn_of_redefinition): Ignore NODE_WARN flag on nodes registered for -Wkeyword-macro. (_cpp_create_definition): Support -Wkeyword-macro diagnostics. Formatting fixes.
This commit is contained in:
Jakub Jelinek
committed by
Jakub Jelinek
Jakub Jelinek
parent
48787c734e
commit
64859dc6e2
@@ -747,7 +747,7 @@ enum cxx_dialect {
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cxx26
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};
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/* The C++ dialect being used. C++98 is the default. */
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/* The C++ dialect being used. C++17 is the default. */
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extern enum cxx_dialect cxx_dialect;
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/* Maximum template instantiation depth. This limit is rather
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@@ -959,6 +959,15 @@ c_common_post_options (const char **pfilename)
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if (warn_enum_compare == -1)
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warn_enum_compare = c_dialect_cxx () ? 1 : 0;
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/* For C++26 default to -Wkeyword-macro if -Wpedantic. */
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if (cxx_dialect >= cxx26 && pedantic)
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{
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SET_OPTION_IF_UNSET (&global_options, &global_options_set,
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warn_keyword_macro, 1);
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if (warn_keyword_macro)
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cpp_opts->cpp_warn_keyword_macro = warn_keyword_macro;
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}
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/* -Wpacked-bitfield-compat is on by default for the C languages. The
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warning is issued in stor-layout.cc which is not part of the front-end so
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we need to selectively turn it on here. */
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@@ -964,6 +964,10 @@ Enum(warn_leading_whitespace_kind) String(tabs) Value(2)
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EnumValue
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Enum(warn_leading_whitespace_kind) String(blanks) Value(3)
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Wkeyword-macro
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C ObjC C++ ObjC++ CPP(cpp_warn_keyword_macro) CppReason(CPP_W_KEYWORD_MACRO) Var(warn_keyword_macro) Init(0) Warning
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Warn about defining or undefining macros with identifiers equal to keywords (or for C++ conditional keywords or standard attribute names).
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Wleading-whitespace=
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C ObjC C++ ObjC++ CPP(cpp_warn_leading_whitespace) CppReason(CPP_W_LEADING_WHITESPACE) Enum(warn_leading_whitespace_kind) Joined RejectNegative Var(warn_leading_whitespace) Init(0) Warning
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Warn about leading whitespace style issues on lines except when in raw string literals.
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@@ -508,6 +508,9 @@ UrlSuffix(gcc/Warning-Options.html#index-Winvalid-utf8)
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Wjump-misses-init
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UrlSuffix(gcc/Warning-Options.html#index-Wjump-misses-init)
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Wkeyword-macro
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UrlSuffix(gcc/Warning-Options.html#index-Wkeyword-macro)
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Wleading-whitespace=
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UrlSuffix(gcc/Warning-Options.html#index-Wleading-whitespace_003d)
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@@ -4825,6 +4825,29 @@ c_init_decl_processing (void)
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make_fname_decl = c_make_fname_decl;
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start_fname_decls ();
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if (warn_keyword_macro)
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{
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for (unsigned int i = 0; i < num_c_common_reswords; ++i)
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/* For C register keywords which don't start with underscore
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or start with just single underscore. Don't complain about
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ObjC or Transactional Memory keywords. */
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if (c_common_reswords[i].word[0] == '_'
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&& c_common_reswords[i].word[1] == '_')
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continue;
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else if (c_common_reswords[i].disable
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& (D_TRANSMEM | D_OBJC | D_CXX_OBJC))
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continue;
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else
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{
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tree id = get_identifier (c_common_reswords[i].word);
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if (C_IS_RESERVED_WORD (id)
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&& C_RID_CODE (id) != RID_CXX_COMPAT_WARN)
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cpp_lookup (parse_in,
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(const unsigned char *) IDENTIFIER_POINTER (id),
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IDENTIFIER_LENGTH (id))->flags |= NODE_WARN;
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}
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}
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}
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/* Create the VAR_DECL at LOC for __FUNCTION__ etc. ID is the name to
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@@ -368,6 +368,66 @@ cxx_init (void)
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cxx_init_decl_processing ();
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if (warn_keyword_macro)
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{
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for (unsigned int i = 0; i < num_c_common_reswords; ++i)
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/* For C++ none of the keywords in [lex.key] starts with underscore,
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don't register anything like that. Don't complain about
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ObjC or Transactional Memory keywords. */
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if (c_common_reswords[i].word[0] == '_')
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continue;
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else if (c_common_reswords[i].disable & (D_TRANSMEM | D_OBJC))
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continue;
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else
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{
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tree id = get_identifier (c_common_reswords[i].word);
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if (IDENTIFIER_KEYWORD_P (id)
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/* Don't register keywords with spaces. */
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&& IDENTIFIER_POINTER (id)[IDENTIFIER_LENGTH (id) - 1] != ' ')
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cpp_lookup (parse_in,
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(const unsigned char *) IDENTIFIER_POINTER (id),
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IDENTIFIER_LENGTH (id))->flags |= NODE_WARN;
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}
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auto warn_on = [] (const char *name) {
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cpp_lookup (parse_in, (const unsigned char *) name,
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strlen (name))->flags |= NODE_WARN;
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};
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if (cxx_dialect >= cxx11)
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{
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warn_on ("final");
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warn_on ("override");
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warn_on ("noreturn");
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if (cxx_dialect < cxx26)
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warn_on ("carries_dependency");
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}
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if (cxx_dialect >= cxx14)
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warn_on ("deprecated");
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if (cxx_dialect >= cxx17)
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{
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warn_on ("fallthrough");
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warn_on ("maybe_unused");
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warn_on ("nodiscard");
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}
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if (cxx_dialect >= cxx20)
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{
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warn_on ("likely");
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warn_on ("unlikely");
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warn_on ("no_unique_address");
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}
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if (flag_modules)
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{
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warn_on ("import");
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warn_on ("module");
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}
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if (cxx_dialect >= cxx23)
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warn_on ("assume");
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if (cxx_dialect >= cxx26)
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{
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warn_on ("replaceable_if_eligible");
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warn_on ("trivially_relocatable_if_eligible");
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}
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}
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if (c_common_init () == false)
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{
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input_location = saved_loc;
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@@ -388,6 +388,7 @@ Objective-C and Objective-C++ Dialects}.
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-Winit-self -Winline -Wno-int-conversion -Wint-in-bool-context
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-Wno-int-to-pointer-cast -Wno-invalid-memory-model
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-Winvalid-pch -Winvalid-utf8 -Wno-unicode -Wjump-misses-init
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-Wkeyword-macro
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-Wlarger-than=@var{byte-size} -Wleading-whitespace=@var{kind}
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-Wlogical-not-parentheses -Wlogical-op
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-Wlong-long -Wno-lto-type-mismatch -Wmain -Wmaybe-uninitialized
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@@ -10399,6 +10400,14 @@ Do not warn if certain built-in macros are redefined. This suppresses
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warnings for redefinition of @code{__TIMESTAMP__}, @code{__TIME__},
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@code{__DATE__}, @code{__FILE__}, and @code{__BASE_FILE__}.
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@opindex Wkeyword-macro
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@opindex Wno-keyword-macro
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@item -Wkeyword-macro
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Warn if a keyword is defined as a macro or undefined.
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For C++ identifiers with special meaning or standard attribute identifiers
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are diagnosed as well. This warning is enabled by default for C++26
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if @code{-Wpedantic} and emits a pedwarn in that case.
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@opindex Wfree-labels
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@opindex Wno-free-labels
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@item -Wfree-labels @r{(C and Objective-C only)}
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@@ -1,4 +1,4 @@
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// { dg-additional-options "-fmodules-ts" }
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// { dg-additional-options "-fmodules-ts -Wno-keyword-macro" }
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#define import import
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import malcolm; // { dg-error "object-like macro" }
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// { dg-error "failed to read" "" { target *-*-* } 0 }
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@@ -3,7 +3,9 @@
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#if __cplusplus > 201500L
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// register is no longer a keyword in C++17.
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#define register
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#define reg
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#else
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#define reg register
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#endif
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class a {
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@@ -14,8 +16,8 @@ struct c {
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int d;
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a e;
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} f;
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void fn1(register c *g) {
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register int *h;
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void fn1(reg c *g) {
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reg int *h;
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do
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(h) = g->e.b() + (g)->d;
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while (&f);
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@@ -1,7 +1,7 @@
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// The conversion from D* to B* is ambiguous, but that should not produce
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// an error, it should remove the first f overload by SFINAE.
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#define static_assert(TEST,STR) \
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#define my_static_assert(TEST,STR) \
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do { int ar[(TEST)?1:-1]; } while (0);
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struct B {};
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@@ -23,6 +23,6 @@ template <class T>
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int main()
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{
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static_assert(sizeof f<int>(0) == sizeof(two), "");
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static_assert(sizeof f<B *>(0) == sizeof(two), "");
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my_static_assert(sizeof f<int>(0) == sizeof(two), "");
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my_static_assert(sizeof f<B *>(0) == sizeof(two), "");
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}
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112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-1.C
Normal file
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-1.C
Normal file
@@ -0,0 +1,112 @@
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// C++26 P2843R3 - Preprocessing is never undefined
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// [cpp.replace.general]/9
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// { dg-do preprocess }
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// { dg-options "-pedantic-errors" }
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// { dg-additional-options "-fmodules" { target c++20 } }
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// [lex.key]
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#define alignas 1 // { dg-error "keyword 'alignas' defined as macro" "" { target c++26 } }
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#define alignof 1 // { dg-error "keyword 'alignof' defined as macro" "" { target c++26 } }
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#define asm 1 // { dg-error "keyword 'asm' defined as macro" "" { target c++26 } }
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#define auto 1 // { dg-error "keyword 'auto' defined as macro" "" { target c++26 } }
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#define bool 1 // { dg-error "keyword 'bool' defined as macro" "" { target c++26 } }
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#define break 1 // { dg-error "keyword 'break' defined as macro" "" { target c++26 } }
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#define case 1 // { dg-error "keyword 'case' defined as macro" "" { target c++26 } }
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#define catch 1 // { dg-error "keyword 'catch' defined as macro" "" { target c++26 } }
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#define char 1 // { dg-error "keyword 'char' defined as macro" "" { target c++26 } }
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#define char16_t 1 // { dg-error "keyword 'char16_t' defined as macro" "" { target c++26 } }
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#define char32_t 1 // { dg-error "keyword 'char32_t' defined as macro" "" { target c++26 } }
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#define char8_t 1 // { dg-error "keyword 'char8_t' defined as macro" "" { target c++26 } }
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#define class 1 // { dg-error "keyword 'class' defined as macro" "" { target c++26 } }
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#define co_await 1 // { dg-error "keyword 'co_await' defined as macro" "" { target c++26 } }
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#define concept 1 // { dg-error "keyword 'concept' defined as macro" "" { target c++26 } }
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#define const 1 // { dg-error "keyword 'const' defined as macro" "" { target c++26 } }
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#define const_cast 1 // { dg-error "keyword 'const_cast' defined as macro" "" { target c++26 } }
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#define consteval 1 // { dg-error "keyword 'consteval' defined as macro" "" { target c++26 } }
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#define constexpr 1 // { dg-error "keyword 'constexpr' defined as macro" "" { target c++26 } }
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#define constinit 1 // { dg-error "keyword 'constinit' defined as macro" "" { target c++26 } }
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#define continue 1 // { dg-error "keyword 'continue' defined as macro" "" { target c++26 } }
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#define contract_assert 1
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#define co_return 1 // { dg-error "keyword 'co_return' defined as macro" "" { target c++26 } }
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#define co_yield 1 // { dg-error "keyword 'co_yield' defined as macro" "" { target c++26 } }
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#define decltype 1 // { dg-error "keyword 'decltype' defined as macro" "" { target c++26 } }
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#define default 1 // { dg-error "keyword 'default' defined as macro" "" { target c++26 } }
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#define delete 1 // { dg-error "keyword 'delete' defined as macro" "" { target c++26 } }
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#define do 1 // { dg-error "keyword 'do' defined as macro" "" { target c++26 } }
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#define double 1 // { dg-error "keyword 'double' defined as macro" "" { target c++26 } }
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#define dynamic_cast 1 // { dg-error "keyword 'dynamic_cast' defined as macro" "" { target c++26 } }
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#define else 1 // { dg-error "keyword 'else' defined as macro" "" { target c++26 } }
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#define enum 1 // { dg-error "keyword 'enum' defined as macro" "" { target c++26 } }
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#define explicit 1 // { dg-error "keyword 'explicit' defined as macro" "" { target c++26 } }
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#define export 1 // { dg-error "keyword 'export' defined as macro" "" { target c++26 } }
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#define extern 1 // { dg-error "keyword 'extern' defined as macro" "" { target c++26 } }
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#define false 1 // { dg-error "keyword 'false' defined as macro" "" { target c++26 } }
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#define float 1 // { dg-error "keyword 'float' defined as macro" "" { target c++26 } }
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#define for 1 // { dg-error "keyword 'for' defined as macro" "" { target c++26 } }
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#define friend 1 // { dg-error "keyword 'friend' defined as macro" "" { target c++26 } }
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#define goto 1 // { dg-error "keyword 'goto' defined as macro" "" { target c++26 } }
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#define if 1 // { dg-error "keyword 'if' defined as macro" "" { target c++26 } }
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#define inline 1 // { dg-error "keyword 'inline' defined as macro" "" { target c++26 } }
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#define int 1 // { dg-error "keyword 'int' defined as macro" "" { target c++26 } }
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#define long 1 // { dg-error "keyword 'long' defined as macro" "" { target c++26 } }
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#define mutable 1 // { dg-error "keyword 'mutable' defined as macro" "" { target c++26 } }
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#define namespace 1 // { dg-error "keyword 'namespace' defined as macro" "" { target c++26 } }
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#define new 1 // { dg-error "keyword 'new' defined as macro" "" { target c++26 } }
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#define noexcept 1 // { dg-error "keyword 'noexcept' defined as macro" "" { target c++26 } }
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#define nullptr 1 // { dg-error "keyword 'nullptr' defined as macro" "" { target c++26 } }
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#define operator 1 // { dg-error "keyword 'operator' defined as macro" "" { target c++26 } }
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#define private 1 // { dg-error "keyword 'private' defined as macro" "" { target c++26 } }
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#define protected 1 // { dg-error "keyword 'protected' defined as macro" "" { target c++26 } }
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#define public 1 // { dg-error "keyword 'public' defined as macro" "" { target c++26 } }
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#define register 1 // { dg-error "keyword 'register' defined as macro" "" { target c++26 } }
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#define reinterpret_cast 1 // { dg-error "keyword 'reinterpret_cast' defined as macro" "" { target c++26 } }
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#define requires 1 // { dg-error "keyword 'requires' defined as macro" "" { target c++26 } }
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#define return 1 // { dg-error "keyword 'return' defined as macro" "" { target c++26 } }
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#define short 1 // { dg-error "keyword 'short' defined as macro" "" { target c++26 } }
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#define signed 1 // { dg-error "keyword 'signed' defined as macro" "" { target c++26 } }
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#define sizeof 1 // { dg-error "keyword 'sizeof' defined as macro" "" { target c++26 } }
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#define static 1 // { dg-error "keyword 'static' defined as macro" "" { target c++26 } }
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#define static_assert 1 // { dg-error "keyword 'static_assert' defined as macro" "" { target c++26 } }
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#define static_cast 1 // { dg-error "keyword 'static_cast' defined as macro" "" { target c++26 } }
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#define struct 1 // { dg-error "keyword 'struct' defined as macro" "" { target c++26 } }
|
||||
#define switch 1 // { dg-error "keyword 'switch' defined as macro" "" { target c++26 } }
|
||||
#define template 1 // { dg-error "keyword 'template' defined as macro" "" { target c++26 } }
|
||||
#define this 1 // { dg-error "keyword 'this' defined as macro" "" { target c++26 } }
|
||||
#define thread_local 1 // { dg-error "keyword 'thread_local' defined as macro" "" { target c++26 } }
|
||||
#define throw 1 // { dg-error "keyword 'throw' defined as macro" "" { target c++26 } }
|
||||
#define true 1 // { dg-error "keyword 'true' defined as macro" "" { target c++26 } }
|
||||
#define try 1 // { dg-error "keyword 'try' defined as macro" "" { target c++26 } }
|
||||
#define typedef 1 // { dg-error "keyword 'typedef' defined as macro" "" { target c++26 } }
|
||||
#define typeid 1 // { dg-error "keyword 'typeid' defined as macro" "" { target c++26 } }
|
||||
#define typename 1 // { dg-error "keyword 'typename' defined as macro" "" { target c++26 } }
|
||||
#define union 1 // { dg-error "keyword 'union' defined as macro" "" { target c++26 } }
|
||||
#define unsigned 1 // { dg-error "keyword 'unsigned' defined as macro" "" { target c++26 } }
|
||||
#define using 1 // { dg-error "keyword 'using' defined as macro" "" { target c++26 } }
|
||||
#define virtual 1 // { dg-error "keyword 'virtual' defined as macro" "" { target c++26 } }
|
||||
#define void 1 // { dg-error "keyword 'void' defined as macro" "" { target c++26 } }
|
||||
#define volatile 1 // { dg-error "keyword 'volatile' defined as macro" "" { target c++26 } }
|
||||
#define wchar_t 1 // { dg-error "keyword 'wchar_t' defined as macro" "" { target c++26 } }
|
||||
#define while 1 // { dg-error "keyword 'while' defined as macro" "" { target c++26 } }
|
||||
|
||||
// [lex.name]
|
||||
#define final 1 // { dg-error "keyword 'final' defined as macro" "" { target c++26 } }
|
||||
#define import 1 // { dg-error "keyword 'import' defined as macro" "" { target c++26 } }
|
||||
#define module 1 // { dg-error "keyword 'module' defined as macro" "" { target c++26 } }
|
||||
#define override 1 // { dg-error "keyword 'override' defined as macro" "" { target c++26 } }
|
||||
#define post 1
|
||||
#define pre 1
|
||||
#define replaceable_if_eligible 1 // { dg-error "keyword 'replaceable_if_eligible' defined as macro" "" { target c++26 } }
|
||||
#define trivially_relocatable_if_eligible 1 // { dg-error "keyword 'trivially_relocatable_if_eligible' defined as macro" "" { target c++26 } }
|
||||
|
||||
// [dcl.attr]
|
||||
#define assume 1 // { dg-error "keyword 'assume' defined as macro" "" { target c++26 } }
|
||||
#define carries_dependency 1
|
||||
#define deprecated 1 // { dg-error "keyword 'deprecated' defined as macro" "" { target c++26 } }
|
||||
#define fallthrough 1 // { dg-error "keyword 'fallthrough' defined as macro" "" { target c++26 } }
|
||||
#define indeterminate 1
|
||||
#define likely 1 // { dg-error "keyword 'likely' defined as macro" "" { target c++26 } }
|
||||
#define maybe_unused 1 // { dg-error "keyword 'maybe_unused' defined as macro" "" { target c++26 } }
|
||||
#define nodiscard 1 // { dg-error "keyword 'nodiscard' defined as macro" "" { target c++26 } }
|
||||
#define noreturn 1 // { dg-error "keyword 'noreturn' defined as macro" "" { target c++26 } }
|
||||
#define no_unique_address 1 // { dg-error "keyword 'no_unique_address' defined as macro" "" { target c++26 } }
|
||||
#define unlikely 1 // { dg-error "keyword 'unlikely' defined as macro" "" { target c++26 } }
|
||||
23
gcc/testsuite/g++.dg/warn/Wkeyword-macro-10.C
Normal file
23
gcc/testsuite/g++.dg/warn/Wkeyword-macro-10.C
Normal file
@@ -0,0 +1,23 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro" }
|
||||
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#define for for // { dg-warning "keyword 'for' defined as macro" }
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#define while do // { dg-warning "keyword 'while' defined as macro" }
|
||||
#define while do // { dg-warning "keyword 'while' defined as macro" }
|
||||
#define while for // { dg-warning "keyword 'while' defined as macro" }
|
||||
// { dg-warning "'while' redefined" "" { target *-*-* } .-1 }
|
||||
#undef while // { dg-warning "undefining keyword 'while'" }
|
||||
#define while while // { dg-warning "keyword 'while' defined as macro" }
|
||||
#define private public // { dg-warning "keyword 'private' defined as macro" }
|
||||
#define inline // { dg-warning "keyword 'inline' defined as macro" }
|
||||
#undef inline // { dg-warning "undefining keyword 'inline'" }
|
||||
#define inline __inline__ __attribute__((__always_inline__)) // { dg-warning "keyword 'inline' defined as macro" }
|
||||
#define likely(a) a
|
||||
#undef likely // { dg-warning "undefining keyword 'likely'" "" { target c++20 } }
|
||||
#define unlikely(a, b, c) a + b + c
|
||||
#define unlikely(a, b, c) a + b + c
|
||||
#undef unlikely // { dg-warning "undefining keyword 'unlikely'" "" { target c++20 } }
|
||||
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-2.C
Normal file
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-2.C
Normal file
@@ -0,0 +1,112 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-pedantic" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
// [lex.key]
|
||||
#define alignas 1 // { dg-warning "keyword 'alignas' defined as macro" "" { target c++26 } }
|
||||
#define alignof 1 // { dg-warning "keyword 'alignof' defined as macro" "" { target c++26 } }
|
||||
#define asm 1 // { dg-warning "keyword 'asm' defined as macro" "" { target c++26 } }
|
||||
#define auto 1 // { dg-warning "keyword 'auto' defined as macro" "" { target c++26 } }
|
||||
#define bool 1 // { dg-warning "keyword 'bool' defined as macro" "" { target c++26 } }
|
||||
#define break 1 // { dg-warning "keyword 'break' defined as macro" "" { target c++26 } }
|
||||
#define case 1 // { dg-warning "keyword 'case' defined as macro" "" { target c++26 } }
|
||||
#define catch 1 // { dg-warning "keyword 'catch' defined as macro" "" { target c++26 } }
|
||||
#define char 1 // { dg-warning "keyword 'char' defined as macro" "" { target c++26 } }
|
||||
#define char16_t 1 // { dg-warning "keyword 'char16_t' defined as macro" "" { target c++26 } }
|
||||
#define char32_t 1 // { dg-warning "keyword 'char32_t' defined as macro" "" { target c++26 } }
|
||||
#define char8_t 1 // { dg-warning "keyword 'char8_t' defined as macro" "" { target c++26 } }
|
||||
#define class 1 // { dg-warning "keyword 'class' defined as macro" "" { target c++26 } }
|
||||
#define co_await 1 // { dg-warning "keyword 'co_await' defined as macro" "" { target c++26 } }
|
||||
#define concept 1 // { dg-warning "keyword 'concept' defined as macro" "" { target c++26 } }
|
||||
#define const 1 // { dg-warning "keyword 'const' defined as macro" "" { target c++26 } }
|
||||
#define const_cast 1 // { dg-warning "keyword 'const_cast' defined as macro" "" { target c++26 } }
|
||||
#define consteval 1 // { dg-warning "keyword 'consteval' defined as macro" "" { target c++26 } }
|
||||
#define constexpr 1 // { dg-warning "keyword 'constexpr' defined as macro" "" { target c++26 } }
|
||||
#define constinit 1 // { dg-warning "keyword 'constinit' defined as macro" "" { target c++26 } }
|
||||
#define continue 1 // { dg-warning "keyword 'continue' defined as macro" "" { target c++26 } }
|
||||
#define contract_assert 1
|
||||
#define co_return 1 // { dg-warning "keyword 'co_return' defined as macro" "" { target c++26 } }
|
||||
#define co_yield 1 // { dg-warning "keyword 'co_yield' defined as macro" "" { target c++26 } }
|
||||
#define decltype 1 // { dg-warning "keyword 'decltype' defined as macro" "" { target c++26 } }
|
||||
#define default 1 // { dg-warning "keyword 'default' defined as macro" "" { target c++26 } }
|
||||
#define delete 1 // { dg-warning "keyword 'delete' defined as macro" "" { target c++26 } }
|
||||
#define do 1 // { dg-warning "keyword 'do' defined as macro" "" { target c++26 } }
|
||||
#define double 1 // { dg-warning "keyword 'double' defined as macro" "" { target c++26 } }
|
||||
#define dynamic_cast 1 // { dg-warning "keyword 'dynamic_cast' defined as macro" "" { target c++26 } }
|
||||
#define else 1 // { dg-warning "keyword 'else' defined as macro" "" { target c++26 } }
|
||||
#define enum 1 // { dg-warning "keyword 'enum' defined as macro" "" { target c++26 } }
|
||||
#define explicit 1 // { dg-warning "keyword 'explicit' defined as macro" "" { target c++26 } }
|
||||
#define export 1 // { dg-warning "keyword 'export' defined as macro" "" { target c++26 } }
|
||||
#define extern 1 // { dg-warning "keyword 'extern' defined as macro" "" { target c++26 } }
|
||||
#define false 1 // { dg-warning "keyword 'false' defined as macro" "" { target c++26 } }
|
||||
#define float 1 // { dg-warning "keyword 'float' defined as macro" "" { target c++26 } }
|
||||
#define for 1 // { dg-warning "keyword 'for' defined as macro" "" { target c++26 } }
|
||||
#define friend 1 // { dg-warning "keyword 'friend' defined as macro" "" { target c++26 } }
|
||||
#define goto 1 // { dg-warning "keyword 'goto' defined as macro" "" { target c++26 } }
|
||||
#define if 1 // { dg-warning "keyword 'if' defined as macro" "" { target c++26 } }
|
||||
#define inline 1 // { dg-warning "keyword 'inline' defined as macro" "" { target c++26 } }
|
||||
#define int 1 // { dg-warning "keyword 'int' defined as macro" "" { target c++26 } }
|
||||
#define long 1 // { dg-warning "keyword 'long' defined as macro" "" { target c++26 } }
|
||||
#define mutable 1 // { dg-warning "keyword 'mutable' defined as macro" "" { target c++26 } }
|
||||
#define namespace 1 // { dg-warning "keyword 'namespace' defined as macro" "" { target c++26 } }
|
||||
#define new 1 // { dg-warning "keyword 'new' defined as macro" "" { target c++26 } }
|
||||
#define noexcept 1 // { dg-warning "keyword 'noexcept' defined as macro" "" { target c++26 } }
|
||||
#define nullptr 1 // { dg-warning "keyword 'nullptr' defined as macro" "" { target c++26 } }
|
||||
#define operator 1 // { dg-warning "keyword 'operator' defined as macro" "" { target c++26 } }
|
||||
#define private 1 // { dg-warning "keyword 'private' defined as macro" "" { target c++26 } }
|
||||
#define protected 1 // { dg-warning "keyword 'protected' defined as macro" "" { target c++26 } }
|
||||
#define public 1 // { dg-warning "keyword 'public' defined as macro" "" { target c++26 } }
|
||||
#define register 1 // { dg-warning "keyword 'register' defined as macro" "" { target c++26 } }
|
||||
#define reinterpret_cast 1 // { dg-warning "keyword 'reinterpret_cast' defined as macro" "" { target c++26 } }
|
||||
#define requires 1 // { dg-warning "keyword 'requires' defined as macro" "" { target c++26 } }
|
||||
#define return 1 // { dg-warning "keyword 'return' defined as macro" "" { target c++26 } }
|
||||
#define short 1 // { dg-warning "keyword 'short' defined as macro" "" { target c++26 } }
|
||||
#define signed 1 // { dg-warning "keyword 'signed' defined as macro" "" { target c++26 } }
|
||||
#define sizeof 1 // { dg-warning "keyword 'sizeof' defined as macro" "" { target c++26 } }
|
||||
#define static 1 // { dg-warning "keyword 'static' defined as macro" "" { target c++26 } }
|
||||
#define static_assert 1 // { dg-warning "keyword 'static_assert' defined as macro" "" { target c++26 } }
|
||||
#define static_cast 1 // { dg-warning "keyword 'static_cast' defined as macro" "" { target c++26 } }
|
||||
#define struct 1 // { dg-warning "keyword 'struct' defined as macro" "" { target c++26 } }
|
||||
#define switch 1 // { dg-warning "keyword 'switch' defined as macro" "" { target c++26 } }
|
||||
#define template 1 // { dg-warning "keyword 'template' defined as macro" "" { target c++26 } }
|
||||
#define this 1 // { dg-warning "keyword 'this' defined as macro" "" { target c++26 } }
|
||||
#define thread_local 1 // { dg-warning "keyword 'thread_local' defined as macro" "" { target c++26 } }
|
||||
#define throw 1 // { dg-warning "keyword 'throw' defined as macro" "" { target c++26 } }
|
||||
#define true 1 // { dg-warning "keyword 'true' defined as macro" "" { target c++26 } }
|
||||
#define try 1 // { dg-warning "keyword 'try' defined as macro" "" { target c++26 } }
|
||||
#define typedef 1 // { dg-warning "keyword 'typedef' defined as macro" "" { target c++26 } }
|
||||
#define typeid 1 // { dg-warning "keyword 'typeid' defined as macro" "" { target c++26 } }
|
||||
#define typename 1 // { dg-warning "keyword 'typename' defined as macro" "" { target c++26 } }
|
||||
#define union 1 // { dg-warning "keyword 'union' defined as macro" "" { target c++26 } }
|
||||
#define unsigned 1 // { dg-warning "keyword 'unsigned' defined as macro" "" { target c++26 } }
|
||||
#define using 1 // { dg-warning "keyword 'using' defined as macro" "" { target c++26 } }
|
||||
#define virtual 1 // { dg-warning "keyword 'virtual' defined as macro" "" { target c++26 } }
|
||||
#define void 1 // { dg-warning "keyword 'void' defined as macro" "" { target c++26 } }
|
||||
#define volatile 1 // { dg-warning "keyword 'volatile' defined as macro" "" { target c++26 } }
|
||||
#define wchar_t 1 // { dg-warning "keyword 'wchar_t' defined as macro" "" { target c++26 } }
|
||||
#define while 1 // { dg-warning "keyword 'while' defined as macro" "" { target c++26 } }
|
||||
|
||||
// [lex.name]
|
||||
#define final 1 // { dg-warning "keyword 'final' defined as macro" "" { target c++26 } }
|
||||
#define import 1 // { dg-warning "keyword 'import' defined as macro" "" { target c++26 } }
|
||||
#define module 1 // { dg-warning "keyword 'module' defined as macro" "" { target c++26 } }
|
||||
#define override 1 // { dg-warning "keyword 'override' defined as macro" "" { target c++26 } }
|
||||
#define post 1
|
||||
#define pre 1
|
||||
#define replaceable_if_eligible 1 // { dg-warning "keyword 'replaceable_if_eligible' defined as macro" "" { target c++26 } }
|
||||
#define trivially_relocatable_if_eligible 1 // { dg-warning "keyword 'trivially_relocatable_if_eligible' defined as macro" "" { target c++26 } }
|
||||
|
||||
// [dcl.attr]
|
||||
#define assume 1 // { dg-warning "keyword 'assume' defined as macro" "" { target c++26 } }
|
||||
#define carries_dependency 1
|
||||
#define deprecated 1 // { dg-warning "keyword 'deprecated' defined as macro" "" { target c++26 } }
|
||||
#define fallthrough 1 // { dg-warning "keyword 'fallthrough' defined as macro" "" { target c++26 } }
|
||||
#define indeterminate 1
|
||||
#define likely 1 // { dg-warning "keyword 'likely' defined as macro" "" { target c++26 } }
|
||||
#define maybe_unused 1 // { dg-warning "keyword 'maybe_unused' defined as macro" "" { target c++26 } }
|
||||
#define nodiscard 1 // { dg-warning "keyword 'nodiscard' defined as macro" "" { target c++26 } }
|
||||
#define noreturn 1 // { dg-warning "keyword 'noreturn' defined as macro" "" { target c++26 } }
|
||||
#define no_unique_address 1 // { dg-warning "keyword 'no_unique_address' defined as macro" "" { target c++26 } }
|
||||
#define unlikely 1 // { dg-warning "keyword 'unlikely' defined as macro" "" { target c++26 } }
|
||||
7
gcc/testsuite/g++.dg/warn/Wkeyword-macro-3.C
Normal file
7
gcc/testsuite/g++.dg/warn/Wkeyword-macro-3.C
Normal file
@@ -0,0 +1,7 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
#include "Wkeyword-macro-1.C"
|
||||
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-4.C
Normal file
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-4.C
Normal file
@@ -0,0 +1,112 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-pedantic-errors" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
// [lex.key]
|
||||
#undef alignas // { dg-error "undefining keyword 'alignas'" "" { target c++26 } }
|
||||
#undef alignof // { dg-error "undefining keyword 'alignof'" "" { target c++26 } }
|
||||
#undef asm // { dg-error "undefining keyword 'asm'" "" { target c++26 } }
|
||||
#undef auto // { dg-error "undefining keyword 'auto'" "" { target c++26 } }
|
||||
#undef bool // { dg-error "undefining keyword 'bool'" "" { target c++26 } }
|
||||
#undef break // { dg-error "undefining keyword 'break'" "" { target c++26 } }
|
||||
#undef case // { dg-error "undefining keyword 'case'" "" { target c++26 } }
|
||||
#undef catch // { dg-error "undefining keyword 'catch'" "" { target c++26 } }
|
||||
#undef char // { dg-error "undefining keyword 'char'" "" { target c++26 } }
|
||||
#undef char16_t // { dg-error "undefining keyword 'char16_t'" "" { target c++26 } }
|
||||
#undef char32_t // { dg-error "undefining keyword 'char32_t'" "" { target c++26 } }
|
||||
#undef char8_t // { dg-error "undefining keyword 'char8_t'" "" { target c++26 } }
|
||||
#undef class // { dg-error "undefining keyword 'class'" "" { target c++26 } }
|
||||
#undef co_await // { dg-error "undefining keyword 'co_await'" "" { target c++26 } }
|
||||
#undef concept // { dg-error "undefining keyword 'concept'" "" { target c++26 } }
|
||||
#undef const // { dg-error "undefining keyword 'const'" "" { target c++26 } }
|
||||
#undef const_cast // { dg-error "undefining keyword 'const_cast'" "" { target c++26 } }
|
||||
#undef consteval // { dg-error "undefining keyword 'consteval'" "" { target c++26 } }
|
||||
#undef constexpr // { dg-error "undefining keyword 'constexpr'" "" { target c++26 } }
|
||||
#undef constinit // { dg-error "undefining keyword 'constinit'" "" { target c++26 } }
|
||||
#undef continue // { dg-error "undefining keyword 'continue'" "" { target c++26 } }
|
||||
#undef contract_assert
|
||||
#undef co_return // { dg-error "undefining keyword 'co_return'" "" { target c++26 } }
|
||||
#undef co_yield // { dg-error "undefining keyword 'co_yield'" "" { target c++26 } }
|
||||
#undef decltype // { dg-error "undefining keyword 'decltype'" "" { target c++26 } }
|
||||
#undef default // { dg-error "undefining keyword 'default'" "" { target c++26 } }
|
||||
#undef delete // { dg-error "undefining keyword 'delete'" "" { target c++26 } }
|
||||
#undef do // { dg-error "undefining keyword 'do'" "" { target c++26 } }
|
||||
#undef double // { dg-error "undefining keyword 'double'" "" { target c++26 } }
|
||||
#undef dynamic_cast // { dg-error "undefining keyword 'dynamic_cast'" "" { target c++26 } }
|
||||
#undef else // { dg-error "undefining keyword 'else'" "" { target c++26 } }
|
||||
#undef enum // { dg-error "undefining keyword 'enum'" "" { target c++26 } }
|
||||
#undef explicit // { dg-error "undefining keyword 'explicit'" "" { target c++26 } }
|
||||
#undef export // { dg-error "undefining keyword 'export'" "" { target c++26 } }
|
||||
#undef extern // { dg-error "undefining keyword 'extern'" "" { target c++26 } }
|
||||
#undef false // { dg-error "undefining keyword 'false'" "" { target c++26 } }
|
||||
#undef float // { dg-error "undefining keyword 'float'" "" { target c++26 } }
|
||||
#undef for // { dg-error "undefining keyword 'for'" "" { target c++26 } }
|
||||
#undef friend // { dg-error "undefining keyword 'friend'" "" { target c++26 } }
|
||||
#undef goto // { dg-error "undefining keyword 'goto'" "" { target c++26 } }
|
||||
#undef if // { dg-error "undefining keyword 'if'" "" { target c++26 } }
|
||||
#undef inline // { dg-error "undefining keyword 'inline'" "" { target c++26 } }
|
||||
#undef int // { dg-error "undefining keyword 'int'" "" { target c++26 } }
|
||||
#undef long // { dg-error "undefining keyword 'long'" "" { target c++26 } }
|
||||
#undef mutable // { dg-error "undefining keyword 'mutable'" "" { target c++26 } }
|
||||
#undef namespace // { dg-error "undefining keyword 'namespace'" "" { target c++26 } }
|
||||
#undef new // { dg-error "undefining keyword 'new'" "" { target c++26 } }
|
||||
#undef noexcept // { dg-error "undefining keyword 'noexcept'" "" { target c++26 } }
|
||||
#undef nullptr // { dg-error "undefining keyword 'nullptr'" "" { target c++26 } }
|
||||
#undef operator // { dg-error "undefining keyword 'operator'" "" { target c++26 } }
|
||||
#undef private // { dg-error "undefining keyword 'private'" "" { target c++26 } }
|
||||
#undef protected // { dg-error "undefining keyword 'protected'" "" { target c++26 } }
|
||||
#undef public // { dg-error "undefining keyword 'public'" "" { target c++26 } }
|
||||
#undef register // { dg-error "undefining keyword 'register'" "" { target c++26 } }
|
||||
#undef reinterpret_cast // { dg-error "undefining keyword 'reinterpret_cast'" "" { target c++26 } }
|
||||
#undef requires // { dg-error "undefining keyword 'requires'" "" { target c++26 } }
|
||||
#undef return // { dg-error "undefining keyword 'return'" "" { target c++26 } }
|
||||
#undef short // { dg-error "undefining keyword 'short'" "" { target c++26 } }
|
||||
#undef signed // { dg-error "undefining keyword 'signed'" "" { target c++26 } }
|
||||
#undef sizeof // { dg-error "undefining keyword 'sizeof'" "" { target c++26 } }
|
||||
#undef static // { dg-error "undefining keyword 'static'" "" { target c++26 } }
|
||||
#undef static_assert // { dg-error "undefining keyword 'static_assert'" "" { target c++26 } }
|
||||
#undef static_cast // { dg-error "undefining keyword 'static_cast'" "" { target c++26 } }
|
||||
#undef struct // { dg-error "undefining keyword 'struct'" "" { target c++26 } }
|
||||
#undef switch // { dg-error "undefining keyword 'switch'" "" { target c++26 } }
|
||||
#undef template // { dg-error "undefining keyword 'template'" "" { target c++26 } }
|
||||
#undef this // { dg-error "undefining keyword 'this'" "" { target c++26 } }
|
||||
#undef thread_local // { dg-error "undefining keyword 'thread_local'" "" { target c++26 } }
|
||||
#undef throw // { dg-error "undefining keyword 'throw'" "" { target c++26 } }
|
||||
#undef true // { dg-error "undefining keyword 'true'" "" { target c++26 } }
|
||||
#undef try // { dg-error "undefining keyword 'try'" "" { target c++26 } }
|
||||
#undef typedef // { dg-error "undefining keyword 'typedef'" "" { target c++26 } }
|
||||
#undef typeid // { dg-error "undefining keyword 'typeid'" "" { target c++26 } }
|
||||
#undef typename // { dg-error "undefining keyword 'typename'" "" { target c++26 } }
|
||||
#undef union // { dg-error "undefining keyword 'union'" "" { target c++26 } }
|
||||
#undef unsigned // { dg-error "undefining keyword 'unsigned'" "" { target c++26 } }
|
||||
#undef using // { dg-error "undefining keyword 'using'" "" { target c++26 } }
|
||||
#undef virtual // { dg-error "undefining keyword 'virtual'" "" { target c++26 } }
|
||||
#undef void // { dg-error "undefining keyword 'void'" "" { target c++26 } }
|
||||
#undef volatile // { dg-error "undefining keyword 'volatile'" "" { target c++26 } }
|
||||
#undef wchar_t // { dg-error "undefining keyword 'wchar_t'" "" { target c++26 } }
|
||||
#undef while // { dg-error "undefining keyword 'while'" "" { target c++26 } }
|
||||
|
||||
// [lex.name]
|
||||
#undef final // { dg-error "undefining keyword 'final'" "" { target c++26 } }
|
||||
#undef import // { dg-error "undefining keyword 'import'" "" { target c++26 } }
|
||||
#undef module // { dg-error "undefining keyword 'module'" "" { target c++26 } }
|
||||
#undef override // { dg-error "undefining keyword 'override'" "" { target c++26 } }
|
||||
#undef post
|
||||
#undef pre
|
||||
#undef replaceable_if_eligible // { dg-error "undefining keyword 'replaceable_if_eligible'" "" { target c++26 } }
|
||||
#undef trivially_relocatable_if_eligible // { dg-error "undefining keyword 'trivially_relocatable_if_eligible'" "" { target c++26 } }
|
||||
|
||||
// [dcl.attr]
|
||||
#undef assume // { dg-error "undefining keyword 'assume'" "" { target c++26 } }
|
||||
#undef carries_dependency
|
||||
#undef deprecated // { dg-error "undefining keyword 'deprecated'" "" { target c++26 } }
|
||||
#undef fallthrough // { dg-error "undefining keyword 'fallthrough'" "" { target c++26 } }
|
||||
#undef indeterminate
|
||||
#undef likely // { dg-error "undefining keyword 'likely'" "" { target c++26 } }
|
||||
#undef maybe_unused // { dg-error "undefining keyword 'maybe_unused'" "" { target c++26 } }
|
||||
#undef nodiscard // { dg-error "undefining keyword 'nodiscard'" "" { target c++26 } }
|
||||
#undef noreturn // { dg-error "undefining keyword 'noreturn'" "" { target c++26 } }
|
||||
#undef no_unique_address // { dg-error "undefining keyword 'no_unique_address'" "" { target c++26 } }
|
||||
#undef unlikely // { dg-error "undefining keyword 'unlikely'" "" { target c++26 } }
|
||||
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-5.C
Normal file
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-5.C
Normal file
@@ -0,0 +1,112 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-pedantic" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
// [lex.key]
|
||||
#undef alignas // { dg-warning "undefining keyword 'alignas'" "" { target c++26 } }
|
||||
#undef alignof // { dg-warning "undefining keyword 'alignof'" "" { target c++26 } }
|
||||
#undef asm // { dg-warning "undefining keyword 'asm'" "" { target c++26 } }
|
||||
#undef auto // { dg-warning "undefining keyword 'auto'" "" { target c++26 } }
|
||||
#undef bool // { dg-warning "undefining keyword 'bool'" "" { target c++26 } }
|
||||
#undef break // { dg-warning "undefining keyword 'break'" "" { target c++26 } }
|
||||
#undef case // { dg-warning "undefining keyword 'case'" "" { target c++26 } }
|
||||
#undef catch // { dg-warning "undefining keyword 'catch'" "" { target c++26 } }
|
||||
#undef char // { dg-warning "undefining keyword 'char'" "" { target c++26 } }
|
||||
#undef char16_t // { dg-warning "undefining keyword 'char16_t'" "" { target c++26 } }
|
||||
#undef char32_t // { dg-warning "undefining keyword 'char32_t'" "" { target c++26 } }
|
||||
#undef char8_t // { dg-warning "undefining keyword 'char8_t'" "" { target c++26 } }
|
||||
#undef class // { dg-warning "undefining keyword 'class'" "" { target c++26 } }
|
||||
#undef co_await // { dg-warning "undefining keyword 'co_await'" "" { target c++26 } }
|
||||
#undef concept // { dg-warning "undefining keyword 'concept'" "" { target c++26 } }
|
||||
#undef const // { dg-warning "undefining keyword 'const'" "" { target c++26 } }
|
||||
#undef const_cast // { dg-warning "undefining keyword 'const_cast'" "" { target c++26 } }
|
||||
#undef consteval // { dg-warning "undefining keyword 'consteval'" "" { target c++26 } }
|
||||
#undef constexpr // { dg-warning "undefining keyword 'constexpr'" "" { target c++26 } }
|
||||
#undef constinit // { dg-warning "undefining keyword 'constinit'" "" { target c++26 } }
|
||||
#undef continue // { dg-warning "undefining keyword 'continue'" "" { target c++26 } }
|
||||
#undef contract_assert
|
||||
#undef co_return // { dg-warning "undefining keyword 'co_return'" "" { target c++26 } }
|
||||
#undef co_yield // { dg-warning "undefining keyword 'co_yield'" "" { target c++26 } }
|
||||
#undef decltype // { dg-warning "undefining keyword 'decltype'" "" { target c++26 } }
|
||||
#undef default // { dg-warning "undefining keyword 'default'" "" { target c++26 } }
|
||||
#undef delete // { dg-warning "undefining keyword 'delete'" "" { target c++26 } }
|
||||
#undef do // { dg-warning "undefining keyword 'do'" "" { target c++26 } }
|
||||
#undef double // { dg-warning "undefining keyword 'double'" "" { target c++26 } }
|
||||
#undef dynamic_cast // { dg-warning "undefining keyword 'dynamic_cast'" "" { target c++26 } }
|
||||
#undef else // { dg-warning "undefining keyword 'else'" "" { target c++26 } }
|
||||
#undef enum // { dg-warning "undefining keyword 'enum'" "" { target c++26 } }
|
||||
#undef explicit // { dg-warning "undefining keyword 'explicit'" "" { target c++26 } }
|
||||
#undef export // { dg-warning "undefining keyword 'export'" "" { target c++26 } }
|
||||
#undef extern // { dg-warning "undefining keyword 'extern'" "" { target c++26 } }
|
||||
#undef false // { dg-warning "undefining keyword 'false'" "" { target c++26 } }
|
||||
#undef float // { dg-warning "undefining keyword 'float'" "" { target c++26 } }
|
||||
#undef for // { dg-warning "undefining keyword 'for'" "" { target c++26 } }
|
||||
#undef friend // { dg-warning "undefining keyword 'friend'" "" { target c++26 } }
|
||||
#undef goto // { dg-warning "undefining keyword 'goto'" "" { target c++26 } }
|
||||
#undef if // { dg-warning "undefining keyword 'if'" "" { target c++26 } }
|
||||
#undef inline // { dg-warning "undefining keyword 'inline'" "" { target c++26 } }
|
||||
#undef int // { dg-warning "undefining keyword 'int'" "" { target c++26 } }
|
||||
#undef long // { dg-warning "undefining keyword 'long'" "" { target c++26 } }
|
||||
#undef mutable // { dg-warning "undefining keyword 'mutable'" "" { target c++26 } }
|
||||
#undef namespace // { dg-warning "undefining keyword 'namespace'" "" { target c++26 } }
|
||||
#undef new // { dg-warning "undefining keyword 'new'" "" { target c++26 } }
|
||||
#undef noexcept // { dg-warning "undefining keyword 'noexcept'" "" { target c++26 } }
|
||||
#undef nullptr // { dg-warning "undefining keyword 'nullptr'" "" { target c++26 } }
|
||||
#undef operator // { dg-warning "undefining keyword 'operator'" "" { target c++26 } }
|
||||
#undef private // { dg-warning "undefining keyword 'private'" "" { target c++26 } }
|
||||
#undef protected // { dg-warning "undefining keyword 'protected'" "" { target c++26 } }
|
||||
#undef public // { dg-warning "undefining keyword 'public'" "" { target c++26 } }
|
||||
#undef register // { dg-warning "undefining keyword 'register'" "" { target c++26 } }
|
||||
#undef reinterpret_cast // { dg-warning "undefining keyword 'reinterpret_cast'" "" { target c++26 } }
|
||||
#undef requires // { dg-warning "undefining keyword 'requires'" "" { target c++26 } }
|
||||
#undef return // { dg-warning "undefining keyword 'return'" "" { target c++26 } }
|
||||
#undef short // { dg-warning "undefining keyword 'short'" "" { target c++26 } }
|
||||
#undef signed // { dg-warning "undefining keyword 'signed'" "" { target c++26 } }
|
||||
#undef sizeof // { dg-warning "undefining keyword 'sizeof'" "" { target c++26 } }
|
||||
#undef static // { dg-warning "undefining keyword 'static'" "" { target c++26 } }
|
||||
#undef static_assert // { dg-warning "undefining keyword 'static_assert'" "" { target c++26 } }
|
||||
#undef static_cast // { dg-warning "undefining keyword 'static_cast'" "" { target c++26 } }
|
||||
#undef struct // { dg-warning "undefining keyword 'struct'" "" { target c++26 } }
|
||||
#undef switch // { dg-warning "undefining keyword 'switch'" "" { target c++26 } }
|
||||
#undef template // { dg-warning "undefining keyword 'template'" "" { target c++26 } }
|
||||
#undef this // { dg-warning "undefining keyword 'this'" "" { target c++26 } }
|
||||
#undef thread_local // { dg-warning "undefining keyword 'thread_local'" "" { target c++26 } }
|
||||
#undef throw // { dg-warning "undefining keyword 'throw'" "" { target c++26 } }
|
||||
#undef true // { dg-warning "undefining keyword 'true'" "" { target c++26 } }
|
||||
#undef try // { dg-warning "undefining keyword 'try'" "" { target c++26 } }
|
||||
#undef typedef // { dg-warning "undefining keyword 'typedef'" "" { target c++26 } }
|
||||
#undef typeid // { dg-warning "undefining keyword 'typeid'" "" { target c++26 } }
|
||||
#undef typename // { dg-warning "undefining keyword 'typename'" "" { target c++26 } }
|
||||
#undef union // { dg-warning "undefining keyword 'union'" "" { target c++26 } }
|
||||
#undef unsigned // { dg-warning "undefining keyword 'unsigned'" "" { target c++26 } }
|
||||
#undef using // { dg-warning "undefining keyword 'using'" "" { target c++26 } }
|
||||
#undef virtual // { dg-warning "undefining keyword 'virtual'" "" { target c++26 } }
|
||||
#undef void // { dg-warning "undefining keyword 'void'" "" { target c++26 } }
|
||||
#undef volatile // { dg-warning "undefining keyword 'volatile'" "" { target c++26 } }
|
||||
#undef wchar_t // { dg-warning "undefining keyword 'wchar_t'" "" { target c++26 } }
|
||||
#undef while // { dg-warning "undefining keyword 'while'" "" { target c++26 } }
|
||||
|
||||
// [lex.name]
|
||||
#undef final // { dg-warning "undefining keyword 'final'" "" { target c++26 } }
|
||||
#undef import // { dg-warning "undefining keyword 'import'" "" { target c++26 } }
|
||||
#undef module // { dg-warning "undefining keyword 'module'" "" { target c++26 } }
|
||||
#undef override // { dg-warning "undefining keyword 'override'" "" { target c++26 } }
|
||||
#undef post
|
||||
#undef pre
|
||||
#undef replaceable_if_eligible // { dg-warning "undefining keyword 'replaceable_if_eligible'" "" { target c++26 } }
|
||||
#undef trivially_relocatable_if_eligible // { dg-warning "undefining keyword 'trivially_relocatable_if_eligible'" "" { target c++26 } }
|
||||
|
||||
// [dcl.attr]
|
||||
#undef assume // { dg-warning "undefining keyword 'assume'" "" { target c++26 } }
|
||||
#undef carries_dependency
|
||||
#undef deprecated // { dg-warning "undefining keyword 'deprecated'" "" { target c++26 } }
|
||||
#undef fallthrough // { dg-warning "undefining keyword 'fallthrough'" "" { target c++26 } }
|
||||
#undef indeterminate
|
||||
#undef likely // { dg-warning "undefining keyword 'likely'" "" { target c++26 } }
|
||||
#undef maybe_unused // { dg-warning "undefining keyword 'maybe_unused'" "" { target c++26 } }
|
||||
#undef nodiscard // { dg-warning "undefining keyword 'nodiscard'" "" { target c++26 } }
|
||||
#undef noreturn // { dg-warning "undefining keyword 'noreturn'" "" { target c++26 } }
|
||||
#undef no_unique_address // { dg-warning "undefining keyword 'no_unique_address'" "" { target c++26 } }
|
||||
#undef unlikely // { dg-warning "undefining keyword 'unlikely'" "" { target c++26 } }
|
||||
7
gcc/testsuite/g++.dg/warn/Wkeyword-macro-6.C
Normal file
7
gcc/testsuite/g++.dg/warn/Wkeyword-macro-6.C
Normal file
@@ -0,0 +1,7 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
#include "Wkeyword-macro-4.C"
|
||||
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-7.C
Normal file
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-7.C
Normal file
@@ -0,0 +1,112 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
// [lex.key]
|
||||
#define alignas 1 // { dg-warning "keyword 'alignas' defined as macro" "" { target c++11 } }
|
||||
#define alignof 1 // { dg-warning "keyword 'alignof' defined as macro" "" { target c++11 } }
|
||||
#define asm 1 // { dg-warning "keyword 'asm' defined as macro" }
|
||||
#define auto 1 // { dg-warning "keyword 'auto' defined as macro" }
|
||||
#define bool 1 // { dg-warning "keyword 'bool' defined as macro" }
|
||||
#define break 1 // { dg-warning "keyword 'break' defined as macro" }
|
||||
#define case 1 // { dg-warning "keyword 'case' defined as macro" }
|
||||
#define catch 1 // { dg-warning "keyword 'catch' defined as macro" }
|
||||
#define char 1 // { dg-warning "keyword 'char' defined as macro" }
|
||||
#define char16_t 1 // { dg-warning "keyword 'char16_t' defined as macro" "" { target c++11 } }
|
||||
#define char32_t 1 // { dg-warning "keyword 'char32_t' defined as macro" "" { target c++11 } }
|
||||
#define char8_t 1 // { dg-warning "keyword 'char8_t' defined as macro" "" { target c++20 } }
|
||||
#define class 1 // { dg-warning "keyword 'class' defined as macro" }
|
||||
#define co_await 1 // { dg-warning "keyword 'co_await' defined as macro" "" { target c++20 } }
|
||||
#define concept 1 // { dg-warning "keyword 'concept' defined as macro" "" { target c++20 } }
|
||||
#define const 1 // { dg-warning "keyword 'const' defined as macro" }
|
||||
#define const_cast 1 // { dg-warning "keyword 'const_cast' defined as macro" }
|
||||
#define consteval 1 // { dg-warning "keyword 'consteval' defined as macro" "" { target c++20 } }
|
||||
#define constexpr 1 // { dg-warning "keyword 'constexpr' defined as macro" "" { target c++11 } }
|
||||
#define constinit 1 // { dg-warning "keyword 'constinit' defined as macro" "" { target c++20 } }
|
||||
#define continue 1 // { dg-warning "keyword 'continue' defined as macro" }
|
||||
#define contract_assert 1
|
||||
#define co_return 1 // { dg-warning "keyword 'co_return' defined as macro" "" { target c++20 } }
|
||||
#define co_yield 1 // { dg-warning "keyword 'co_yield' defined as macro" "" { target c++20 } }
|
||||
#define decltype 1 // { dg-warning "keyword 'decltype' defined as macro" "" { target c++11 } }
|
||||
#define default 1 // { dg-warning "keyword 'default' defined as macro" }
|
||||
#define delete 1 // { dg-warning "keyword 'delete' defined as macro" }
|
||||
#define do 1 // { dg-warning "keyword 'do' defined as macro" }
|
||||
#define double 1 // { dg-warning "keyword 'double' defined as macro" }
|
||||
#define dynamic_cast 1 // { dg-warning "keyword 'dynamic_cast' defined as macro" }
|
||||
#define else 1 // { dg-warning "keyword 'else' defined as macro" }
|
||||
#define enum 1 // { dg-warning "keyword 'enum' defined as macro" }
|
||||
#define explicit 1 // { dg-warning "keyword 'explicit' defined as macro" }
|
||||
#define export 1 // { dg-warning "keyword 'export' defined as macro" }
|
||||
#define extern 1 // { dg-warning "keyword 'extern' defined as macro" }
|
||||
#define false 1 // { dg-warning "keyword 'false' defined as macro" }
|
||||
#define float 1 // { dg-warning "keyword 'float' defined as macro" }
|
||||
#define for 1 // { dg-warning "keyword 'for' defined as macro" }
|
||||
#define friend 1 // { dg-warning "keyword 'friend' defined as macro" }
|
||||
#define goto 1 // { dg-warning "keyword 'goto' defined as macro" }
|
||||
#define if 1 // { dg-warning "keyword 'if' defined as macro" }
|
||||
#define inline 1 // { dg-warning "keyword 'inline' defined as macro" }
|
||||
#define int 1 // { dg-warning "keyword 'int' defined as macro" }
|
||||
#define long 1 // { dg-warning "keyword 'long' defined as macro" }
|
||||
#define mutable 1 // { dg-warning "keyword 'mutable' defined as macro" }
|
||||
#define namespace 1 // { dg-warning "keyword 'namespace' defined as macro" }
|
||||
#define new 1 // { dg-warning "keyword 'new' defined as macro" }
|
||||
#define noexcept 1 // { dg-warning "keyword 'noexcept' defined as macro" "" { target c++11 } }
|
||||
#define nullptr 1 // { dg-warning "keyword 'nullptr' defined as macro" "" { target c++11 } }
|
||||
#define operator 1 // { dg-warning "keyword 'operator' defined as macro" }
|
||||
#define private 1 // { dg-warning "keyword 'private' defined as macro" }
|
||||
#define protected 1 // { dg-warning "keyword 'protected' defined as macro" }
|
||||
#define public 1 // { dg-warning "keyword 'public' defined as macro" }
|
||||
#define register 1 // { dg-warning "keyword 'register' defined as macro" }
|
||||
#define reinterpret_cast 1 // { dg-warning "keyword 'reinterpret_cast' defined as macro" }
|
||||
#define requires 1 // { dg-warning "keyword 'requires' defined as macro" "" { target c++20 } }
|
||||
#define return 1 // { dg-warning "keyword 'return' defined as macro" }
|
||||
#define short 1 // { dg-warning "keyword 'short' defined as macro" }
|
||||
#define signed 1 // { dg-warning "keyword 'signed' defined as macro" }
|
||||
#define sizeof 1 // { dg-warning "keyword 'sizeof' defined as macro" }
|
||||
#define static 1 // { dg-warning "keyword 'static' defined as macro" }
|
||||
#define static_assert 1 // { dg-warning "keyword 'static_assert' defined as macro" "" { target c++11 } }
|
||||
#define static_cast 1 // { dg-warning "keyword 'static_cast' defined as macro" }
|
||||
#define struct 1 // { dg-warning "keyword 'struct' defined as macro" }
|
||||
#define switch 1 // { dg-warning "keyword 'switch' defined as macro" }
|
||||
#define template 1 // { dg-warning "keyword 'template' defined as macro" }
|
||||
#define this 1 // { dg-warning "keyword 'this' defined as macro" }
|
||||
#define thread_local 1 // { dg-warning "keyword 'thread_local' defined as macro" "" { target c++11 } }
|
||||
#define throw 1 // { dg-warning "keyword 'throw' defined as macro" }
|
||||
#define true 1 // { dg-warning "keyword 'true' defined as macro" }
|
||||
#define try 1 // { dg-warning "keyword 'try' defined as macro" }
|
||||
#define typedef 1 // { dg-warning "keyword 'typedef' defined as macro" }
|
||||
#define typeid 1 // { dg-warning "keyword 'typeid' defined as macro" }
|
||||
#define typename 1 // { dg-warning "keyword 'typename' defined as macro" }
|
||||
#define union 1 // { dg-warning "keyword 'union' defined as macro" }
|
||||
#define unsigned 1 // { dg-warning "keyword 'unsigned' defined as macro" }
|
||||
#define using 1 // { dg-warning "keyword 'using' defined as macro" }
|
||||
#define virtual 1 // { dg-warning "keyword 'virtual' defined as macro" }
|
||||
#define void 1 // { dg-warning "keyword 'void' defined as macro" }
|
||||
#define volatile 1 // { dg-warning "keyword 'volatile' defined as macro" }
|
||||
#define wchar_t 1 // { dg-warning "keyword 'wchar_t' defined as macro" }
|
||||
#define while 1 // { dg-warning "keyword 'while' defined as macro" }
|
||||
|
||||
// [lex.name]
|
||||
#define final 1 // { dg-warning "keyword 'final' defined as macro" "" { target c++11 } }
|
||||
#define import 1 // { dg-warning "keyword 'import' defined as macro" "" { target c++20 } }
|
||||
#define module 1 // { dg-warning "keyword 'module' defined as macro" "" { target c++20 } }
|
||||
#define override 1 // { dg-warning "keyword 'override' defined as macro" "" { target c++11 } }
|
||||
#define post 1
|
||||
#define pre 1
|
||||
#define replaceable_if_eligible 1 // { dg-warning "keyword 'replaceable_if_eligible' defined as macro" "" { target c++26 } }
|
||||
#define trivially_relocatable_if_eligible 1 // { dg-warning "keyword 'trivially_relocatable_if_eligible' defined as macro" "" { target c++26 } }
|
||||
|
||||
// [dcl.attr]
|
||||
#define assume 1 // { dg-warning "keyword 'assume' defined as macro" "" { target c++23 } }
|
||||
#define carries_dependency 1 // { dg-warning "keyword 'carries_dependency' defined as macro" "" { target { c++11 && c++23_down } } }
|
||||
#define deprecated 1 // { dg-warning "keyword 'deprecated' defined as macro" "" { target c++14 } }
|
||||
#define fallthrough 1 // { dg-warning "keyword 'fallthrough' defined as macro" "" { target c++17 } }
|
||||
#define indeterminate 1
|
||||
#define likely 1 // { dg-warning "keyword 'likely' defined as macro" "" { target c++20 } }
|
||||
#define maybe_unused 1 // { dg-warning "keyword 'maybe_unused' defined as macro" "" { target c++17 } }
|
||||
#define nodiscard 1 // { dg-warning "keyword 'nodiscard' defined as macro" "" { target c++17 } }
|
||||
#define noreturn 1 // { dg-warning "keyword 'noreturn' defined as macro" "" { target c++11 } }
|
||||
#define no_unique_address 1 // { dg-warning "keyword 'no_unique_address' defined as macro" "" { target c++20 } }
|
||||
#define unlikely 1 // { dg-warning "keyword 'unlikely' defined as macro" "" { target c++20 } }
|
||||
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-8.C
Normal file
112
gcc/testsuite/g++.dg/warn/Wkeyword-macro-8.C
Normal file
@@ -0,0 +1,112 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro" }
|
||||
// { dg-additional-options "-fmodules" { target c++20 } }
|
||||
|
||||
// [lex.key]
|
||||
#undef alignas // { dg-warning "undefining keyword 'alignas'" "" { target c++11 } }
|
||||
#undef alignof // { dg-warning "undefining keyword 'alignof'" "" { target c++11 } }
|
||||
#undef asm // { dg-warning "undefining keyword 'asm'" }
|
||||
#undef auto // { dg-warning "undefining keyword 'auto'" }
|
||||
#undef bool // { dg-warning "undefining keyword 'bool'" }
|
||||
#undef break // { dg-warning "undefining keyword 'break'" }
|
||||
#undef case // { dg-warning "undefining keyword 'case'" }
|
||||
#undef catch // { dg-warning "undefining keyword 'catch'" }
|
||||
#undef char // { dg-warning "undefining keyword 'char'" }
|
||||
#undef char16_t // { dg-warning "undefining keyword 'char16_t'" "" { target c++11 } }
|
||||
#undef char32_t // { dg-warning "undefining keyword 'char32_t'" "" { target c++11 } }
|
||||
#undef char8_t // { dg-warning "undefining keyword 'char8_t'" "" { target c++20 } }
|
||||
#undef class // { dg-warning "undefining keyword 'class'" }
|
||||
#undef co_await // { dg-warning "undefining keyword 'co_await'" "" { target c++20 } }
|
||||
#undef concept // { dg-warning "undefining keyword 'concept'" "" { target c++20 } }
|
||||
#undef const // { dg-warning "undefining keyword 'const'" }
|
||||
#undef const_cast // { dg-warning "undefining keyword 'const_cast'" }
|
||||
#undef consteval // { dg-warning "undefining keyword 'consteval'" "" { target c++20 } }
|
||||
#undef constexpr // { dg-warning "undefining keyword 'constexpr'" "" { target c++11 } }
|
||||
#undef constinit // { dg-warning "undefining keyword 'constinit'" "" { target c++20 } }
|
||||
#undef continue // { dg-warning "undefining keyword 'continue'" }
|
||||
#undef contract_assert
|
||||
#undef co_return // { dg-warning "undefining keyword 'co_return'" "" { target c++20 } }
|
||||
#undef co_yield // { dg-warning "undefining keyword 'co_yield'" "" { target c++20 } }
|
||||
#undef decltype // { dg-warning "undefining keyword 'decltype'" "" { target c++11 } }
|
||||
#undef default // { dg-warning "undefining keyword 'default'" }
|
||||
#undef delete // { dg-warning "undefining keyword 'delete'" }
|
||||
#undef do // { dg-warning "undefining keyword 'do'" }
|
||||
#undef double // { dg-warning "undefining keyword 'double'" }
|
||||
#undef dynamic_cast // { dg-warning "undefining keyword 'dynamic_cast'" }
|
||||
#undef else // { dg-warning "undefining keyword 'else'" }
|
||||
#undef enum // { dg-warning "undefining keyword 'enum'" }
|
||||
#undef explicit // { dg-warning "undefining keyword 'explicit'" }
|
||||
#undef export // { dg-warning "undefining keyword 'export'" }
|
||||
#undef extern // { dg-warning "undefining keyword 'extern'" }
|
||||
#undef false // { dg-warning "undefining keyword 'false'" }
|
||||
#undef float // { dg-warning "undefining keyword 'float'" }
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#undef friend // { dg-warning "undefining keyword 'friend'" }
|
||||
#undef goto // { dg-warning "undefining keyword 'goto'" }
|
||||
#undef if // { dg-warning "undefining keyword 'if'" }
|
||||
#undef inline // { dg-warning "undefining keyword 'inline'" }
|
||||
#undef int // { dg-warning "undefining keyword 'int'" }
|
||||
#undef long // { dg-warning "undefining keyword 'long'" }
|
||||
#undef mutable // { dg-warning "undefining keyword 'mutable'" }
|
||||
#undef namespace // { dg-warning "undefining keyword 'namespace'" }
|
||||
#undef new // { dg-warning "undefining keyword 'new'" }
|
||||
#undef noexcept // { dg-warning "undefining keyword 'noexcept'" "" { target c++11 } }
|
||||
#undef nullptr // { dg-warning "undefining keyword 'nullptr'" "" { target c++11 } }
|
||||
#undef operator // { dg-warning "undefining keyword 'operator'" }
|
||||
#undef private // { dg-warning "undefining keyword 'private'" }
|
||||
#undef protected // { dg-warning "undefining keyword 'protected'" }
|
||||
#undef public // { dg-warning "undefining keyword 'public'" }
|
||||
#undef register // { dg-warning "undefining keyword 'register'" }
|
||||
#undef reinterpret_cast // { dg-warning "undefining keyword 'reinterpret_cast'" }
|
||||
#undef requires // { dg-warning "undefining keyword 'requires'" "" { target c++20 } }
|
||||
#undef return // { dg-warning "undefining keyword 'return'" }
|
||||
#undef short // { dg-warning "undefining keyword 'short'" }
|
||||
#undef signed // { dg-warning "undefining keyword 'signed'" }
|
||||
#undef sizeof // { dg-warning "undefining keyword 'sizeof'" }
|
||||
#undef static // { dg-warning "undefining keyword 'static'" }
|
||||
#undef static_assert // { dg-warning "undefining keyword 'static_assert'" "" { target c++11 } }
|
||||
#undef static_cast // { dg-warning "undefining keyword 'static_cast'" }
|
||||
#undef struct // { dg-warning "undefining keyword 'struct'" }
|
||||
#undef switch // { dg-warning "undefining keyword 'switch'" }
|
||||
#undef template // { dg-warning "undefining keyword 'template'" }
|
||||
#undef this // { dg-warning "undefining keyword 'this'" }
|
||||
#undef thread_local // { dg-warning "undefining keyword 'thread_local'" "" { target c++11 } }
|
||||
#undef throw // { dg-warning "undefining keyword 'throw'" }
|
||||
#undef true // { dg-warning "undefining keyword 'true'" }
|
||||
#undef try // { dg-warning "undefining keyword 'try'" }
|
||||
#undef typedef // { dg-warning "undefining keyword 'typedef'" }
|
||||
#undef typeid // { dg-warning "undefining keyword 'typeid'" }
|
||||
#undef typename // { dg-warning "undefining keyword 'typename'" }
|
||||
#undef union // { dg-warning "undefining keyword 'union'" }
|
||||
#undef unsigned // { dg-warning "undefining keyword 'unsigned'" }
|
||||
#undef using // { dg-warning "undefining keyword 'using'" }
|
||||
#undef virtual // { dg-warning "undefining keyword 'virtual'" }
|
||||
#undef void // { dg-warning "undefining keyword 'void'" }
|
||||
#undef volatile // { dg-warning "undefining keyword 'volatile'" }
|
||||
#undef wchar_t // { dg-warning "undefining keyword 'wchar_t'" }
|
||||
#undef while // { dg-warning "undefining keyword 'while'" }
|
||||
|
||||
// [lex.name]
|
||||
#undef final // { dg-warning "undefining keyword 'final'" "" { target c++11 } }
|
||||
#undef import // { dg-warning "undefining keyword 'import'" "" { target c++20 } }
|
||||
#undef module // { dg-warning "undefining keyword 'module'" "" { target c++20 } }
|
||||
#undef override // { dg-warning "undefining keyword 'override'" "" { target c++11 } }
|
||||
#undef post
|
||||
#undef pre
|
||||
#undef replaceable_if_eligible // { dg-warning "undefining keyword 'replaceable_if_eligible'" "" { target c++26 } }
|
||||
#undef trivially_relocatable_if_eligible // { dg-warning "undefining keyword 'trivially_relocatable_if_eligible'" "" { target c++26 } }
|
||||
|
||||
// [dcl.attr]
|
||||
#undef assume // { dg-warning "undefining keyword 'assume'" "" { target c++23 } }
|
||||
#undef carries_dependency // { dg-warning "undefining keyword 'carries_dependency'" "" { target { c++11 && c++23_down } } }
|
||||
#undef deprecated // { dg-warning "undefining keyword 'deprecated'" "" { target c++14 } }
|
||||
#undef fallthrough // { dg-warning "undefining keyword 'fallthrough'" "" { target c++17 } }
|
||||
#undef indeterminate
|
||||
#undef likely // { dg-warning "undefining keyword 'likely'" "" { target c++20 } }
|
||||
#undef maybe_unused // { dg-warning "undefining keyword 'maybe_unused'" "" { target c++17 } }
|
||||
#undef nodiscard // { dg-warning "undefining keyword 'nodiscard'" "" { target c++17 } }
|
||||
#undef noreturn // { dg-warning "undefining keyword 'noreturn'" "" { target c++11 } }
|
||||
#undef no_unique_address // { dg-warning "undefining keyword 'no_unique_address'" "" { target c++20 } }
|
||||
#undef unlikely // { dg-warning "undefining keyword 'unlikely'" "" { target c++20 } }
|
||||
22
gcc/testsuite/g++.dg/warn/Wkeyword-macro-9.C
Normal file
22
gcc/testsuite/g++.dg/warn/Wkeyword-macro-9.C
Normal file
@@ -0,0 +1,22 @@
|
||||
// C++26 P2843R3 - Preprocessing is never undefined
|
||||
// [cpp.replace.general]/9
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-pedantic-errors" }
|
||||
|
||||
#undef for // { dg-error "undefining keyword 'for'" "" { target c++26 } }
|
||||
#define for for // { dg-error "keyword 'for' defined as macro" "" { target c++26 } }
|
||||
#undef for // { dg-error "undefining keyword 'for'" "" { target c++26 } }
|
||||
#define while do // { dg-error "keyword 'while' defined as macro" "" { target c++26 } }
|
||||
#define while do // { dg-error "keyword 'while' defined as macro" "" { target c++26 } }
|
||||
#define while for // { dg-error "keyword 'while' defined as macro" "" { target c++26 } }
|
||||
// { dg-error "'while' redefined" "" { target *-*-* } .-1 }
|
||||
#undef while // { dg-error "undefining keyword 'while'" "" { target c++26 } }
|
||||
#define while while // { dg-error "keyword 'while' defined as macro" "" { target c++26 } }
|
||||
#define private public // { dg-error "keyword 'private' defined as macro" "" { target c++26 } }
|
||||
#define inline // { dg-error "keyword 'inline' defined as macro" "" { target c++26 } }
|
||||
#undef inline // { dg-error "undefining keyword 'inline'" "" { target c++26 } }
|
||||
#define inline __inline__ __attribute__((__always_inline__)) // { dg-error "keyword 'inline' defined as macro" "" { target c++26 } }
|
||||
#define likely(a) a
|
||||
#undef likely // { dg-error "undefining keyword 'likely'" "" { target c++26 } }
|
||||
#define unlikely(a, b, c) a + b + c
|
||||
#define unlikely(a, b, c) a + b + c
|
||||
62
gcc/testsuite/gcc.dg/Wkeyword-macro-1.c
Normal file
62
gcc/testsuite/gcc.dg/Wkeyword-macro-1.c
Normal file
@@ -0,0 +1,62 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro -std=c23" }
|
||||
|
||||
#define _Alignas 1 // { dg-warning "keyword '_Alignas' defined as macro" }
|
||||
#define _Alignof 1 // { dg-warning "keyword '_Alignof' defined as macro" }
|
||||
#define _Atomic 1 // { dg-warning "keyword '_Atomic' defined as macro" }
|
||||
#define _BitInt 1 // { dg-warning "keyword '_BitInt' defined as macro" }
|
||||
#define _Bool 1 // { dg-warning "keyword '_Bool' defined as macro" }
|
||||
#define _Complex 1 // { dg-warning "keyword '_Complex' defined as macro" }
|
||||
#define _Decimal128 1 // { dg-warning "keyword '_Decimal128' defined as macro" }
|
||||
#define _Decimal32 1 // { dg-warning "keyword '_Decimal32' defined as macro" }
|
||||
#define _Decimal64 1 // { dg-warning "keyword '_Decimal64' defined as macro" }
|
||||
#define _Generic 1 // { dg-warning "keyword '_Generic' defined as macro" }
|
||||
#define _Imaginary 1 // { dg-warning "keyword '_Imaginary' defined as macro" }
|
||||
#define _Noreturn 1 // { dg-warning "keyword '_Noreturn' defined as macro" }
|
||||
#define _Static_assert 1 // { dg-warning "keyword '_Static_assert' defined as macro" }
|
||||
#define _Thread_local 1 // { dg-warning "keyword '_Thread_local' defined as macro" }
|
||||
#define alignas 1 // { dg-warning "keyword 'alignas' defined as macro" }
|
||||
#define alignof 1 // { dg-warning "keyword 'alignof' defined as macro" }
|
||||
#define auto 1 // { dg-warning "keyword 'auto' defined as macro" }
|
||||
#define bool 1 // { dg-warning "keyword 'bool' defined as macro" }
|
||||
#define break 1 // { dg-warning "keyword 'break' defined as macro" }
|
||||
#define case 1 // { dg-warning "keyword 'case' defined as macro" }
|
||||
#define char 1 // { dg-warning "keyword 'char' defined as macro" }
|
||||
#define const 1 // { dg-warning "keyword 'const' defined as macro" }
|
||||
#define constexpr 1 // { dg-warning "keyword 'constexpr' defined as macro" }
|
||||
#define continue 1 // { dg-warning "keyword 'continue' defined as macro" }
|
||||
#define default 1 // { dg-warning "keyword 'default' defined as macro" }
|
||||
#define do 1 // { dg-warning "keyword 'do' defined as macro" }
|
||||
#define double 1 // { dg-warning "keyword 'double' defined as macro" }
|
||||
#define else 1 // { dg-warning "keyword 'else' defined as macro" }
|
||||
#define enum 1 // { dg-warning "keyword 'enum' defined as macro" }
|
||||
#define extern 1 // { dg-warning "keyword 'extern' defined as macro" }
|
||||
#define false 1 // { dg-warning "keyword 'false' defined as macro" }
|
||||
#define float 1 // { dg-warning "keyword 'float' defined as macro" }
|
||||
#define for 1 // { dg-warning "keyword 'for' defined as macro" }
|
||||
#define goto 1 // { dg-warning "keyword 'goto' defined as macro" }
|
||||
#define if 1 // { dg-warning "keyword 'if' defined as macro" }
|
||||
#define inline 1 // { dg-warning "keyword 'inline' defined as macro" }
|
||||
#define int 1 // { dg-warning "keyword 'int' defined as macro" }
|
||||
#define long 1 // { dg-warning "keyword 'long' defined as macro" }
|
||||
#define nullptr 1 // { dg-warning "keyword 'nullptr' defined as macro" }
|
||||
#define register 1 // { dg-warning "keyword 'register' defined as macro" }
|
||||
#define restrict 1 // { dg-warning "keyword 'restrict' defined as macro" }
|
||||
#define return 1 // { dg-warning "keyword 'return' defined as macro" }
|
||||
#define short 1 // { dg-warning "keyword 'short' defined as macro" }
|
||||
#define signed 1 // { dg-warning "keyword 'signed' defined as macro" }
|
||||
#define sizeof 1 // { dg-warning "keyword 'sizeof' defined as macro" }
|
||||
#define static 1 // { dg-warning "keyword 'static' defined as macro" }
|
||||
#define static_assert 1 // { dg-warning "keyword 'static_assert' defined as macro" }
|
||||
#define struct 1 // { dg-warning "keyword 'struct' defined as macro" }
|
||||
#define switch 1 // { dg-warning "keyword 'switch' defined as macro" }
|
||||
#define thread_local 1 // { dg-warning "keyword 'thread_local' defined as macro" }
|
||||
#define true 1 // { dg-warning "keyword 'true' defined as macro" }
|
||||
#define typedef 1 // { dg-warning "keyword 'typedef' defined as macro" }
|
||||
#define typeof 1 // { dg-warning "keyword 'typeof' defined as macro" }
|
||||
#define typeof_unqual 1 // { dg-warning "keyword 'typeof_unqual' defined as macro" }
|
||||
#define union 1 // { dg-warning "keyword 'union' defined as macro" }
|
||||
#define unsigned 1 // { dg-warning "keyword 'unsigned' defined as macro" }
|
||||
#define void 1 // { dg-warning "keyword 'void' defined as macro" }
|
||||
#define volatile 1 // { dg-warning "keyword 'volatile' defined as macro" }
|
||||
#define while 1 // { dg-warning "keyword 'while' defined as macro" }
|
||||
4
gcc/testsuite/gcc.dg/Wkeyword-macro-2.c
Normal file
4
gcc/testsuite/gcc.dg/Wkeyword-macro-2.c
Normal file
@@ -0,0 +1,4 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-std=c23" }
|
||||
|
||||
#include "Wkeyword-macro-1.c"
|
||||
62
gcc/testsuite/gcc.dg/Wkeyword-macro-3.c
Normal file
62
gcc/testsuite/gcc.dg/Wkeyword-macro-3.c
Normal file
@@ -0,0 +1,62 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro -std=c23" }
|
||||
|
||||
#undef _Alignas // { dg-warning "undefining keyword '_Alignas'" }
|
||||
#undef _Alignof // { dg-warning "undefining keyword '_Alignof'" }
|
||||
#undef _Atomic // { dg-warning "undefining keyword '_Atomic'" }
|
||||
#undef _BitInt // { dg-warning "undefining keyword '_BitInt'" }
|
||||
#undef _Bool // { dg-warning "undefining keyword '_Bool'" }
|
||||
#undef _Complex // { dg-warning "undefining keyword '_Complex'" }
|
||||
#undef _Decimal128 // { dg-warning "undefining keyword '_Decimal128'" }
|
||||
#undef _Decimal32 // { dg-warning "undefining keyword '_Decimal32'" }
|
||||
#undef _Decimal64 // { dg-warning "undefining keyword '_Decimal64'" }
|
||||
#undef _Generic // { dg-warning "undefining keyword '_Generic'" }
|
||||
#undef _Imaginary // { dg-warning "undefining keyword '_Imaginary'" }
|
||||
#undef _Noreturn // { dg-warning "undefining keyword '_Noreturn'" }
|
||||
#undef _Static_assert // { dg-warning "undefining keyword '_Static_assert'" }
|
||||
#undef _Thread_local // { dg-warning "undefining keyword '_Thread_local'" }
|
||||
#undef alignas // { dg-warning "undefining keyword 'alignas'" }
|
||||
#undef alignof // { dg-warning "undefining keyword 'alignof'" }
|
||||
#undef auto // { dg-warning "undefining keyword 'auto'" }
|
||||
#undef bool // { dg-warning "undefining keyword 'bool'" }
|
||||
#undef break // { dg-warning "undefining keyword 'break'" }
|
||||
#undef case // { dg-warning "undefining keyword 'case'" }
|
||||
#undef char // { dg-warning "undefining keyword 'char'" }
|
||||
#undef const // { dg-warning "undefining keyword 'const'" }
|
||||
#undef constexpr // { dg-warning "undefining keyword 'constexpr'" }
|
||||
#undef continue // { dg-warning "undefining keyword 'continue'" }
|
||||
#undef default // { dg-warning "undefining keyword 'default'" }
|
||||
#undef do // { dg-warning "undefining keyword 'do'" }
|
||||
#undef double // { dg-warning "undefining keyword 'double'" }
|
||||
#undef else // { dg-warning "undefining keyword 'else'" }
|
||||
#undef enum // { dg-warning "undefining keyword 'enum'" }
|
||||
#undef extern // { dg-warning "undefining keyword 'extern'" }
|
||||
#undef false // { dg-warning "undefining keyword 'false'" }
|
||||
#undef float // { dg-warning "undefining keyword 'float'" }
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#undef goto // { dg-warning "undefining keyword 'goto'" }
|
||||
#undef if // { dg-warning "undefining keyword 'if'" }
|
||||
#undef inline // { dg-warning "undefining keyword 'inline'" }
|
||||
#undef int // { dg-warning "undefining keyword 'int'" }
|
||||
#undef long // { dg-warning "undefining keyword 'long'" }
|
||||
#undef nullptr // { dg-warning "undefining keyword 'nullptr'" }
|
||||
#undef register // { dg-warning "undefining keyword 'register'" }
|
||||
#undef restrict // { dg-warning "undefining keyword 'restrict'" }
|
||||
#undef return // { dg-warning "undefining keyword 'return'" }
|
||||
#undef short // { dg-warning "undefining keyword 'short'" }
|
||||
#undef signed // { dg-warning "undefining keyword 'signed'" }
|
||||
#undef sizeof // { dg-warning "undefining keyword 'sizeof'" }
|
||||
#undef static // { dg-warning "undefining keyword 'static'" }
|
||||
#undef static_assert // { dg-warning "undefining keyword 'static_assert'" }
|
||||
#undef struct // { dg-warning "undefining keyword 'struct'" }
|
||||
#undef switch // { dg-warning "undefining keyword 'switch'" }
|
||||
#undef thread_local // { dg-warning "undefining keyword 'thread_local'" }
|
||||
#undef true // { dg-warning "undefining keyword 'true'" }
|
||||
#undef typedef // { dg-warning "undefining keyword 'typedef'" }
|
||||
#undef typeof // { dg-warning "undefining keyword 'typeof'" }
|
||||
#undef typeof_unqual // { dg-warning "undefining keyword 'typeof_unqual'" }
|
||||
#undef union // { dg-warning "undefining keyword 'union'" }
|
||||
#undef unsigned // { dg-warning "undefining keyword 'unsigned'" }
|
||||
#undef void // { dg-warning "undefining keyword 'void'" }
|
||||
#undef volatile // { dg-warning "undefining keyword 'volatile'" }
|
||||
#undef while // { dg-warning "undefining keyword 'while'" }
|
||||
4
gcc/testsuite/gcc.dg/Wkeyword-macro-4.c
Normal file
4
gcc/testsuite/gcc.dg/Wkeyword-macro-4.c
Normal file
@@ -0,0 +1,4 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-std=c23" }
|
||||
|
||||
#include "Wkeyword-macro-3.c"
|
||||
47
gcc/testsuite/gcc.dg/Wkeyword-macro-5.c
Normal file
47
gcc/testsuite/gcc.dg/Wkeyword-macro-5.c
Normal file
@@ -0,0 +1,47 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro -std=c17" }
|
||||
|
||||
#define _Alignas 1 // { dg-warning "keyword '_Alignas' defined as macro" }
|
||||
#define _Alignof 1 // { dg-warning "keyword '_Alignof' defined as macro" }
|
||||
#define _Atomic 1 // { dg-warning "keyword '_Atomic' defined as macro" }
|
||||
#define _Bool 1 // { dg-warning "keyword '_Bool' defined as macro" }
|
||||
#define _Complex 1 // { dg-warning "keyword '_Complex' defined as macro" }
|
||||
#define _Generic 1 // { dg-warning "keyword '_Generic' defined as macro" }
|
||||
#define _Imaginary 1 // { dg-warning "keyword '_Imaginary' defined as macro" }
|
||||
#define _Noreturn 1 // { dg-warning "keyword '_Noreturn' defined as macro" }
|
||||
#define _Static_assert 1 // { dg-warning "keyword '_Static_assert' defined as macro" }
|
||||
#define _Thread_local 1 // { dg-warning "keyword '_Thread_local' defined as macro" }
|
||||
#define auto 1 // { dg-warning "keyword 'auto' defined as macro" }
|
||||
#define break 1 // { dg-warning "keyword 'break' defined as macro" }
|
||||
#define case 1 // { dg-warning "keyword 'case' defined as macro" }
|
||||
#define char 1 // { dg-warning "keyword 'char' defined as macro" }
|
||||
#define const 1 // { dg-warning "keyword 'const' defined as macro" }
|
||||
#define continue 1 // { dg-warning "keyword 'continue' defined as macro" }
|
||||
#define default 1 // { dg-warning "keyword 'default' defined as macro" }
|
||||
#define do 1 // { dg-warning "keyword 'do' defined as macro" }
|
||||
#define double 1 // { dg-warning "keyword 'double' defined as macro" }
|
||||
#define else 1 // { dg-warning "keyword 'else' defined as macro" }
|
||||
#define enum 1 // { dg-warning "keyword 'enum' defined as macro" }
|
||||
#define extern 1 // { dg-warning "keyword 'extern' defined as macro" }
|
||||
#define float 1 // { dg-warning "keyword 'float' defined as macro" }
|
||||
#define for 1 // { dg-warning "keyword 'for' defined as macro" }
|
||||
#define goto 1 // { dg-warning "keyword 'goto' defined as macro" }
|
||||
#define if 1 // { dg-warning "keyword 'if' defined as macro" }
|
||||
#define inline 1 // { dg-warning "keyword 'inline' defined as macro" }
|
||||
#define int 1 // { dg-warning "keyword 'int' defined as macro" }
|
||||
#define long 1 // { dg-warning "keyword 'long' defined as macro" }
|
||||
#define register 1 // { dg-warning "keyword 'register' defined as macro" }
|
||||
#define restrict 1 // { dg-warning "keyword 'restrict' defined as macro" }
|
||||
#define return 1 // { dg-warning "keyword 'return' defined as macro" }
|
||||
#define short 1 // { dg-warning "keyword 'short' defined as macro" }
|
||||
#define signed 1 // { dg-warning "keyword 'signed' defined as macro" }
|
||||
#define sizeof 1 // { dg-warning "keyword 'sizeof' defined as macro" }
|
||||
#define static 1 // { dg-warning "keyword 'static' defined as macro" }
|
||||
#define struct 1 // { dg-warning "keyword 'struct' defined as macro" }
|
||||
#define switch 1 // { dg-warning "keyword 'switch' defined as macro" }
|
||||
#define typedef 1 // { dg-warning "keyword 'typedef' defined as macro" }
|
||||
#define union 1 // { dg-warning "keyword 'union' defined as macro" }
|
||||
#define unsigned 1 // { dg-warning "keyword 'unsigned' defined as macro" }
|
||||
#define void 1 // { dg-warning "keyword 'void' defined as macro" }
|
||||
#define volatile 1 // { dg-warning "keyword 'volatile' defined as macro" }
|
||||
#define while 1 // { dg-warning "keyword 'while' defined as macro" }
|
||||
4
gcc/testsuite/gcc.dg/Wkeyword-macro-6.c
Normal file
4
gcc/testsuite/gcc.dg/Wkeyword-macro-6.c
Normal file
@@ -0,0 +1,4 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-std=c17" }
|
||||
|
||||
#include "Wkeyword-macro-5.c"
|
||||
47
gcc/testsuite/gcc.dg/Wkeyword-macro-7.c
Normal file
47
gcc/testsuite/gcc.dg/Wkeyword-macro-7.c
Normal file
@@ -0,0 +1,47 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro -std=c17" }
|
||||
|
||||
#undef _Alignas // { dg-warning "undefining keyword '_Alignas'" }
|
||||
#undef _Alignof // { dg-warning "undefining keyword '_Alignof'" }
|
||||
#undef _Atomic // { dg-warning "undefining keyword '_Atomic'" }
|
||||
#undef _Bool // { dg-warning "undefining keyword '_Bool'" }
|
||||
#undef _Complex // { dg-warning "undefining keyword '_Complex'" }
|
||||
#undef _Generic // { dg-warning "undefining keyword '_Generic'" }
|
||||
#undef _Imaginary // { dg-warning "undefining keyword '_Imaginary'" }
|
||||
#undef _Noreturn // { dg-warning "undefining keyword '_Noreturn'" }
|
||||
#undef _Static_assert // { dg-warning "undefining keyword '_Static_assert'" }
|
||||
#undef _Thread_local // { dg-warning "undefining keyword '_Thread_local'" }
|
||||
#undef auto // { dg-warning "undefining keyword 'auto'" }
|
||||
#undef break // { dg-warning "undefining keyword 'break'" }
|
||||
#undef case // { dg-warning "undefining keyword 'case'" }
|
||||
#undef char // { dg-warning "undefining keyword 'char'" }
|
||||
#undef const // { dg-warning "undefining keyword 'const'" }
|
||||
#undef continue // { dg-warning "undefining keyword 'continue'" }
|
||||
#undef default // { dg-warning "undefining keyword 'default'" }
|
||||
#undef do // { dg-warning "undefining keyword 'do'" }
|
||||
#undef double // { dg-warning "undefining keyword 'double'" }
|
||||
#undef else // { dg-warning "undefining keyword 'else'" }
|
||||
#undef enum // { dg-warning "undefining keyword 'enum'" }
|
||||
#undef extern // { dg-warning "undefining keyword 'extern'" }
|
||||
#undef float // { dg-warning "undefining keyword 'float'" }
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#undef goto // { dg-warning "undefining keyword 'goto'" }
|
||||
#undef if // { dg-warning "undefining keyword 'if'" }
|
||||
#undef inline // { dg-warning "undefining keyword 'inline'" }
|
||||
#undef int // { dg-warning "undefining keyword 'int'" }
|
||||
#undef long // { dg-warning "undefining keyword 'long'" }
|
||||
#undef register // { dg-warning "undefining keyword 'register'" }
|
||||
#undef restrict // { dg-warning "undefining keyword 'restrict'" }
|
||||
#undef return // { dg-warning "undefining keyword 'return'" }
|
||||
#undef short // { dg-warning "undefining keyword 'short'" }
|
||||
#undef signed // { dg-warning "undefining keyword 'signed'" }
|
||||
#undef sizeof // { dg-warning "undefining keyword 'sizeof'" }
|
||||
#undef static // { dg-warning "undefining keyword 'static'" }
|
||||
#undef struct // { dg-warning "undefining keyword 'struct'" }
|
||||
#undef switch // { dg-warning "undefining keyword 'switch'" }
|
||||
#undef typedef // { dg-warning "undefining keyword 'typedef'" }
|
||||
#undef union // { dg-warning "undefining keyword 'union'" }
|
||||
#undef unsigned // { dg-warning "undefining keyword 'unsigned'" }
|
||||
#undef void // { dg-warning "undefining keyword 'void'" }
|
||||
#undef volatile // { dg-warning "undefining keyword 'volatile'" }
|
||||
#undef while // { dg-warning "undefining keyword 'while'" }
|
||||
4
gcc/testsuite/gcc.dg/Wkeyword-macro-8.c
Normal file
4
gcc/testsuite/gcc.dg/Wkeyword-macro-8.c
Normal file
@@ -0,0 +1,4 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-std=c17" }
|
||||
|
||||
#include "Wkeyword-macro-7.c"
|
||||
15
gcc/testsuite/gcc.dg/Wkeyword-macro-9.c
Normal file
15
gcc/testsuite/gcc.dg/Wkeyword-macro-9.c
Normal file
@@ -0,0 +1,15 @@
|
||||
// { dg-do preprocess }
|
||||
// { dg-options "-Wkeyword-macro" }
|
||||
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#define for for // { dg-warning "keyword 'for' defined as macro" }
|
||||
#undef for // { dg-warning "undefining keyword 'for'" }
|
||||
#define while do // { dg-warning "keyword 'while' defined as macro" }
|
||||
#define while do // { dg-warning "keyword 'while' defined as macro" }
|
||||
#define while for // { dg-warning "keyword 'while' defined as macro" }
|
||||
// { dg-warning "'while' redefined" "" { target *-*-* } .-1 }
|
||||
#undef while // { dg-warning "undefining keyword 'while'" }
|
||||
#define while while // { dg-warning "keyword 'while' defined as macro" }
|
||||
#define inline // { dg-warning "keyword 'inline' defined as macro" }
|
||||
#undef inline // { dg-warning "undefining keyword 'inline'" }
|
||||
#define inline __inline__ __attribute__((__always_inline__)) // { dg-warning "keyword 'inline' defined as macro" }
|
||||
@@ -734,13 +734,30 @@ do_undef (cpp_reader *pfile)
|
||||
if (pfile->cb.undef)
|
||||
pfile->cb.undef (pfile, pfile->directive_line, node);
|
||||
|
||||
/* Handle -Wkeyword-macro registered identifiers. */
|
||||
bool diagnosed = false;
|
||||
if (CPP_OPTION (pfile, cpp_warn_keyword_macro) && cpp_keyword_p (node))
|
||||
{
|
||||
if (CPP_OPTION (pfile, cpp_pedantic)
|
||||
&& CPP_OPTION (pfile, cplusplus)
|
||||
&& CPP_OPTION (pfile, lang) >= CLK_GNUCXX26)
|
||||
cpp_pedwarning (pfile, CPP_W_KEYWORD_MACRO,
|
||||
"undefining keyword %qs", NODE_NAME (node));
|
||||
else
|
||||
cpp_warning (pfile, CPP_W_KEYWORD_MACRO,
|
||||
"undefining keyword %qs", NODE_NAME (node));
|
||||
diagnosed = true;
|
||||
}
|
||||
/* 6.10.3.5 paragraph 2: [#undef] is ignored if the specified
|
||||
identifier is not currently defined as a macro name. */
|
||||
if (cpp_macro_p (node))
|
||||
{
|
||||
if (node->flags & NODE_WARN)
|
||||
cpp_error (pfile, CPP_DL_WARNING,
|
||||
"undefining %qs", NODE_NAME (node));
|
||||
{
|
||||
if (!diagnosed)
|
||||
cpp_error (pfile, CPP_DL_WARNING,
|
||||
"undefining %qs", NODE_NAME (node));
|
||||
}
|
||||
else if (cpp_builtin_macro_p (node)
|
||||
&& CPP_OPTION (pfile, warn_builtin_macro_redefined))
|
||||
cpp_warning (pfile, CPP_W_BUILTIN_MACRO_REDEFINED,
|
||||
|
||||
@@ -620,6 +620,9 @@ struct cpp_options
|
||||
/* True if -finput-charset= option has been used explicitly. */
|
||||
bool cpp_input_charset_explicit;
|
||||
|
||||
/* True if -Wkeyword-macro. */
|
||||
bool cpp_warn_keyword_macro;
|
||||
|
||||
/* -Wleading-whitespace= value. */
|
||||
unsigned char cpp_warn_leading_whitespace;
|
||||
|
||||
@@ -757,7 +760,8 @@ enum cpp_warning_reason {
|
||||
CPP_W_HEADER_GUARD,
|
||||
CPP_W_PRAGMA_ONCE_OUTSIDE_HEADER,
|
||||
CPP_W_LEADING_WHITESPACE,
|
||||
CPP_W_TRAILING_WHITESPACE
|
||||
CPP_W_TRAILING_WHITESPACE,
|
||||
CPP_W_KEYWORD_MACRO
|
||||
};
|
||||
|
||||
/* Callback for header lookup for HEADER, which is the name of a
|
||||
@@ -1250,6 +1254,17 @@ inline bool cpp_fun_like_macro_p (cpp_hashnode *node)
|
||||
return cpp_user_macro_p (node) && node->value.macro->fun_like;
|
||||
}
|
||||
|
||||
/* Return true for nodes marked for -Wkeyword-macro diagnostics. */
|
||||
inline bool cpp_keyword_p (cpp_hashnode *node)
|
||||
{
|
||||
/* As keywords are marked identifiers which don't start with underscore
|
||||
or start with underscore followed by capital letter (except for
|
||||
_Pragma). */
|
||||
return ((node->flags & NODE_WARN)
|
||||
&& (NODE_NAME (node)[0] != '_'
|
||||
|| (NODE_NAME (node)[1] != '_' && NODE_NAME (node)[1] != 'P')));
|
||||
}
|
||||
|
||||
extern const unsigned char *cpp_macro_definition (cpp_reader *, cpp_hashnode *);
|
||||
extern const unsigned char *cpp_macro_definition (cpp_reader *, cpp_hashnode *,
|
||||
const cpp_macro *);
|
||||
|
||||
@@ -3411,7 +3411,11 @@ warn_of_redefinition (cpp_reader *pfile, cpp_hashnode *node,
|
||||
{
|
||||
/* Some redefinitions need to be warned about regardless. */
|
||||
if (node->flags & NODE_WARN)
|
||||
return true;
|
||||
{
|
||||
/* Ignore NODE_WARN on -Wkeyword-macro registered identifiers though. */
|
||||
if (!CPP_OPTION (pfile, cpp_warn_keyword_macro) || !cpp_keyword_p (node))
|
||||
return true;
|
||||
}
|
||||
|
||||
/* Suppress warnings for builtins that lack the NODE_WARN flag,
|
||||
unless Wbuiltin-macro-redefined. */
|
||||
@@ -3949,6 +3953,25 @@ _cpp_create_definition (cpp_reader *pfile, cpp_hashnode *node,
|
||||
if (name_loc)
|
||||
macro->line = name_loc;
|
||||
|
||||
/* Handle -Wkeyword-macro registered identifiers. */
|
||||
if (CPP_OPTION (pfile, cpp_warn_keyword_macro) && cpp_keyword_p (node))
|
||||
{
|
||||
if (macro->fun_like
|
||||
&& CPP_OPTION (pfile, cplusplus)
|
||||
&& (strcmp ((const char *) NODE_NAME (node), "likely") == 0
|
||||
|| strcmp ((const char *) NODE_NAME (node), "unlikely") == 0))
|
||||
/* likely and unlikely can be defined as function-like macros. */;
|
||||
else if (CPP_OPTION (pfile, cpp_pedantic)
|
||||
&& CPP_OPTION (pfile, cplusplus)
|
||||
&& CPP_OPTION (pfile, lang) >= CLK_GNUCXX26)
|
||||
cpp_pedwarning_with_line (pfile, CPP_W_KEYWORD_MACRO, macro->line, 0,
|
||||
"keyword %qs defined as macro",
|
||||
NODE_NAME (node));
|
||||
else
|
||||
cpp_warning_with_line (pfile, CPP_W_KEYWORD_MACRO, macro->line, 0,
|
||||
"keyword %qs defined as macro",
|
||||
NODE_NAME (node));
|
||||
}
|
||||
if (cpp_macro_p (node))
|
||||
{
|
||||
if (CPP_OPTION (pfile, warn_unused_macros))
|
||||
@@ -3957,12 +3980,12 @@ _cpp_create_definition (cpp_reader *pfile, cpp_hashnode *node,
|
||||
if (warn_of_redefinition (pfile, node, macro))
|
||||
{
|
||||
const enum cpp_warning_reason reason
|
||||
= (cpp_builtin_macro_p (node) && !(node->flags & NODE_WARN))
|
||||
? CPP_W_BUILTIN_MACRO_REDEFINED : CPP_W_NONE;
|
||||
= (cpp_builtin_macro_p (node) && !(node->flags & NODE_WARN)
|
||||
? CPP_W_BUILTIN_MACRO_REDEFINED : CPP_W_NONE);
|
||||
|
||||
bool warned
|
||||
= cpp_pedwarning_with_line (pfile, reason, macro->line, 0,
|
||||
"%qs redefined", NODE_NAME (node));
|
||||
= cpp_pedwarning_with_line (pfile, reason, macro->line, 0,
|
||||
"%qs redefined", NODE_NAME (node));
|
||||
|
||||
if (warned && cpp_user_macro_p (node))
|
||||
cpp_error_with_line (pfile, CPP_DL_NOTE, node->value.macro->line,
|
||||
|
||||
Reference in New Issue
Block a user