Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/constexpr-builtin2.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// PR c++/54021 // { dg-do compile { target c++11 } } extern int nonconst_func(int); constexpr int identity(int x) { return x; } constexpr int zero() { return identity(0); } constexpr int one() { return identity(1); } // These are the same. Only the latter is accepted, though. constexpr int rejected_const_4(int x) { return __builtin_constant_p(x) ? 4 : nonconst_func(x); } constexpr int accepted_const_4(int x) { return identity(__builtin_constant_p(x)) ? 4 : nonconst_func(x); } // This is rejected. I would like it to work. constexpr int four = accepted_const_4(1);