Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/consteval1.C @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// { dg-do run } // { dg-options "-std=c++2a" } namespace std { constexpr inline bool is_constant_evaluated () noexcept { return __builtin_is_constant_evaluated (); } } extern "C" void abort (); constexpr int f0 (int n) { return n; } consteval int f1 (int n) { return f0 (n) * n; } consteval int f2 (int n) { return f1 (n); } consteval bool f3 () { return std::is_constant_evaluated (); } struct S { constexpr S (int x) : s (x) {} consteval int m1 (int n) const; int s; }; consteval int S::m1 (int n) const { n += s; return n; } constexpr int a = 2; int b = f1 (a); int c = f2 (f1 (a)); bool d = f3 (); constexpr S e = 41; int f = e.m1 (1); int main () { if (b != 4 || c != 16 || !d || f != 42) abort (); }