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Feature: Macros for identifying the wide and narrow execution string literal encoding

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gcc/c-family
	* c-cppbuiltin.c (c_cpp_builtins): Add predefined
	{__GNUC_EXECUTION_CHARSET_NAME} and
	_WIDE_EXECUTION_CHARSET_NAME} macros.

gcc/
	* doc/cpp.texi: Document new macros.

gcc/testsuite/
	* c-c++-common/cpp/wide-narrow-predef-macros.c: New test.

libcpp/
	* charset.c (init_iconv_desc): Initialize "to" and "from" fields.
	* directives.c (cpp_get_narrow_charset_name): New function.
	(cpp_get_wide_charset_name): Likewise.
	* include/cpplib.h (cpp_get_narrow_charset_name): Prototype.
	(cpp_get_wide_charset_name): Likewise.
	* internal.h (cset_converter): Add "to" and "from" fields.
This commit is contained in:
JeanHeyd Meneide
2020-12-01 14:39:47 -07:00
committed by Jeff Law
parent 39836f8324
commit eccec86841
7 changed files with 53 additions and 0 deletions
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5
libcpp/include/cpplib.h
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@@ -1005,6 +1005,11 @@ extern class mkdeps *cpp_get_deps (cpp_reader *) ATTRIBUTE_PURE;
extern const char *cpp_find_header_unit (cpp_reader *, const char *file,
bool angle_p, location_t);
/* Call these to get name data about the various compile-time
charsets. */
extern const char *cpp_get_narrow_charset_name (cpp_reader *) ATTRIBUTE_PURE;
extern const char *cpp_get_wide_charset_name (cpp_reader *) ATTRIBUTE_PURE;
/* This function reads the file, but does not start preprocessing. It
returns the name of the original file; this is the same as the
input file, except for preprocessed input. This will generate at