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| -rw-r--r-- | src/common/Utilities/advstd.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/common/Utilities/advstd.h b/src/common/Utilities/advstd.h index c09c47ddd4b..810346ddeef 100644 --- a/src/common/Utilities/advstd.h +++ b/src/common/Utilities/advstd.h @@ -52,6 +52,26 @@ template <typename To, typename From, #endif } +// std::forward_like +#ifdef __cpp_lib_forward_like +#include <utility> +namespace advstd +{ +using std::forward_like; +} +#else +namespace advstd +{ +template <class T, class U> +[[nodiscard]] constexpr decltype(auto) forward_like(U&& value) noexcept +{ + using ValueU = std::remove_reference_t<U>; + using ValueConstU = std::conditional_t<std::is_const_v<std::remove_reference_t<T>>, ValueU const, ValueU>; + return static_cast<std::conditional_t<std::is_rvalue_reference_v<T&&>, ValueConstU&&, ValueConstU&>>(value); +} +} +#endif + // std::ranges::contains #include <algorithm> #ifndef __cpp_lib_ranges_contains |