Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/consteval5.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" } namespace std { constexpr inline bool is_constant_evaluated () noexcept { return __builtin_is_constant_evaluated (); } } extern "C" void abort (); template <int N> constexpr int f0 (int n) { return n + N; } template <int N> consteval int f1 (int n) { return f0<N> (n) * n + N; } template <int N> consteval int f2 (int n) { return f1<N> (n); } template <int N> consteval bool f3 () { return std::is_constant_evaluated () + N; } struct S { constexpr S (int x) : s (x) {} template <int N> consteval int m1 (int n) const; int s; }; template <int N> consteval int S::m1 (int n) const { n += s + N; return n; } constexpr int a = 2; int b = f1<0> (a); int c = f2<0> (f1<0> (a)); bool d = f3<0> (); constexpr S e = 41; int f = e.m1<0> (1); int main () { if (b != 4 || c != 16 || !d || f != 42) abort (); }