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We crash compiling this test since r11-7993 which changed lookup_template_class_1 so that we only call tsubst_enum when !uses_template_parms (current_nonlambda_scope ()) But here current_nonlambda_scope () is the global NAMESPACE_DECL ::, which doesn't have a type, therefore is considered type-dependent. So we don't call tsubst_enum, and crash in tsubst_copy/CONST_DECL because we didn't find the e1 enumerator. I don't think any namespace can depend on any template parameter, so this patch tweaks uses_template_parms. PR c++/105398 gcc/cp/ChangeLog: * pt.cc (uses_template_parms): Return false for any NAMESPACE_DECL. gcc/testsuite/ChangeLog: * g++.dg/cpp1y/lambda-generic-enum2.C: New test.
16 lines
268 B
C
16 lines
268 B
C
// PR c++/105398
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// { dg-do compile { target c++14 } }
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auto f = [](auto &&m) {
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enum E { _,e3,e2,e1,C4,C3,C2,C1 };
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static constexpr int x_coeffs[3][4] = {
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{e1,C2,C3,C4},
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{e2,C1,C3,C4},
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{e3,C1,C2,C4},
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};
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};
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int main() {
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f(0);
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}
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