diff options
Diffstat (limited to 'libcxx/include/__functional/is_transparent.h')
| -rw-r--r-- | libcxx/include/__functional/is_transparent.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libcxx/include/__functional/is_transparent.h b/libcxx/include/__functional/is_transparent.h index 567df1a..c2c6fbc 100644 --- a/libcxx/include/__functional/is_transparent.h +++ b/libcxx/include/__functional/is_transparent.h @@ -29,6 +29,14 @@ inline const bool __is_transparent_v<_Tp, _Key, __void_t<typename _Tp::is_transp #endif +// Two types are considered transparently comparable if `comparator(key, arg)` is equivalent to `comparator(key, +// <implicit cast to KeyT>(arg))`. +// +// This is different from `__is_transparent_v`, which is only a property of the comparator and doesn't provide +// additional semantic guarantees. +template <class _Comparator, class _KeyT, class _Arg, class = void> +inline const bool __is_transparently_comparable_v = false; + _LIBCPP_END_NAMESPACE_STD #endif // _LIBCPP___FUNCTIONAL_IS_TRANSPARENT |