diff options
Diffstat (limited to 'libstdc++-v3/include/std/optional')
| -rw-r--r-- | libstdc++-v3/include/std/optional | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/optional b/libstdc++-v3/include/std/optional index 76b2b0e..466a11c 100644 --- a/libstdc++-v3/include/std/optional +++ b/libstdc++-v3/include/std/optional @@ -1038,7 +1038,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION /// @} +#if __cpp_deduction_guides >= 201606 template <typename _Tp> optional(_Tp) -> optional<_Tp>; +#endif _GLIBCXX_END_NAMESPACE_VERSION } // namespace std |