Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/consteval4.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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// { dg-do run } // { dg-options "-std=c++2a" } extern "C" void abort (); namespace std { constexpr inline bool is_constant_evaluated () noexcept { return __builtin_is_constant_evaluated (); } } int main () { constexpr int a = 5; auto b = [] (int n) consteval { return n + a + std::is_constant_evaluated (); }; int c = b (4); if (c != 10) abort (); auto d = [] () consteval { return a + std::is_constant_evaluated (); }; int e = d (); if (e != 6) abort (); constexpr int f = d (); if (f != 6) abort (); static_assert (d () == 6); }