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0fd9c37d8c
This diff extends D123345 by adding support for std::forward_like. Test plan: ninja check-clang check-clang-tools check-llvm Differential revision: https://reviews.llvm.org/D142430
23 lines
1.1 KiB
C++
23 lines
1.1 KiB
C++
// RUN: %clang_cc1 -std=c++20 -verify %s -DBUILTIN=builtin
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// RUN: %clang_cc1 -std=c++20 -verify %s -DBUILTIN=nobuiltin -fno-builtin
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// RUN: %clang_cc1 -std=c++20 -verify %s -DBUILTIN=nobuiltin -fno-builtin-std-move -fno-builtin-std-move_if_noexcept -fno-builtin-std-forward -fno-builtin-std-forward_like
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// RUN: %clang_cc1 -std=c++20 -verify %s -DBUILTIN=nobuiltin -ffreestanding
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// expected-no-diagnostics
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int nobuiltin;
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namespace std {
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template<typename T> constexpr T &&move(T &x) { return (T&&)nobuiltin; }
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template<typename T> constexpr T &&move_if_noexcept(T &x) { return (T&&)nobuiltin; }
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template<typename T> constexpr T &&forward(T &x) { return (T&&)nobuiltin; }
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template<typename U, typename T> constexpr T &&forward_like(T &X) { return (T&&)nobuiltin; }
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}
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template<typename T> constexpr T *addr(T &&r) { return &r; }
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int builtin;
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static_assert(addr(std::move(builtin)) == &BUILTIN);
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static_assert(addr(std::move_if_noexcept(builtin)) == &BUILTIN);
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static_assert(addr(std::forward(builtin)) == &BUILTIN);
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static_assert(addr(std::forward_like<int&>(builtin)) == &BUILTIN);
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