diff options
Diffstat (limited to 'boost/config/compiler/gcc.hpp')
| -rw-r--r-- | boost/config/compiler/gcc.hpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/boost/config/compiler/gcc.hpp b/boost/config/compiler/gcc.hpp index 4fe968a03c..19ccc592fd 100644 --- a/boost/config/compiler/gcc.hpp +++ b/boost/config/compiler/gcc.hpp @@ -299,6 +299,9 @@ #if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603) # define BOOST_NO_CXX17_FOLD_EXPRESSIONS #endif +#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606) +# define BOOST_NO_CXX17_IF_CONSTEXPR +#endif #if __GNUC__ >= 7 # define BOOST_FALLTHROUGH __attribute__((fallthrough)) |