diff options
| -rw-r--r-- | configure.ac | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index aec3e4a0cca0..946aa79e0766 100644 --- a/configure.ac +++ b/configure.ac @@ -6347,6 +6347,16 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ } enum E { e }; auto v = g(E::e); + + struct S { + int n_; + constexpr bool f() { + int n = n_; + int i = 0; + while (n > 0) { --n; ++i; } + return i == 0; + } + }; ]])], [cxx14_constexpr=yes], [cxx14_constexpr=no]) AC_LANG_POP([C++]) CXXFLAGS=$save_CXXFLAGS |