b04445d4a8
C++20 isn't final quite yet, but all that remains is formalities, so let's go ahead and change all the references. I think for the next C++ standard we can just call it C++23 rather than C++2b, since the committee has been consistent about time-based releases rather than feature-based. gcc/c-family/ChangeLog 2020-05-13 Jason Merrill <jason@redhat.com> * c.opt (std=c++20): Make c++2a the alias. (std=gnu++20): Likewise. * c-common.h (cxx_dialect): Change cxx2a to cxx20. * c-opts.c: Adjust. * c-cppbuiltin.c: Adjust. * c-ubsan.c: Adjust. * c-warn.c: Adjust. gcc/cp/ChangeLog 2020-05-13 Jason Merrill <jason@redhat.com> * call.c, class.c, constexpr.c, constraint.cc, decl.c, init.c, lambda.c, lex.c, method.c, name-lookup.c, parser.c, pt.c, tree.c, typeck2.c: Change cxx2a to cxx20. libcpp/ChangeLog 2020-05-13 Jason Merrill <jason@redhat.com> * include/cpplib.h (enum c_lang): Change CXX2A to CXX20. * init.c, lex.c: Adjust.
16 lines
585 B
C
16 lines
585 B
C
// Test lambda mangling
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// { dg-do compile { target c++20 } }
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// { dg-require-weak "" }
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// { dg-options "-fno-inline" }
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template<typename T> struct R {
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static int x;
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};
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// "int i;" makes the op() non-constexpr in C++17. In C++20, it does not.
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template<typename T> int R<T>::x = []{int i; return 1;}();
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template int R<int>::x;
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// Type of lambda in intializer of R<int>::x: N1RIiE1xMUlvE_E
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// Corresponding operator(): _ZNK1RIiE1xMUlvE_clEv
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// { dg-final { scan-assembler-not "_ZNK1RIiE1xMUlvE_clEv" } }
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// { dg-final { scan-assembler-not "weak\[^\n\r\]*_?_ZNK1RIiE1xMUlvE_clEv" } }
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