diff options
| -rw-r--r-- | Utilities/std/cm/memory | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/Utilities/std/cm/memory b/Utilities/std/cm/memory index 8ebded2..dd0f822 100644 --- a/Utilities/std/cm/memory +++ b/Utilities/std/cm/memory @@ -8,6 +8,8 @@ #include <memory> // IWYU pragma: export #if !defined(CMake_HAVE_CXX_MAKE_UNIQUE) +# include <cstddef> +# include <type_traits> # include <utility> #endif @@ -19,12 +21,45 @@ using std::make_unique; #else +namespace internals { + +template <typename T> +struct make_unique_if +{ + using single = std::unique_ptr<T>; +}; + +template <typename T> +struct make_unique_if<T[]> +{ + using unbound_array = std::unique_ptr<T[]>; +}; + +template <typename T, std::size_t N> +struct make_unique_if<T[N]> +{ + using bound_array = void; +}; +} + template <typename T, typename... Args> -std::unique_ptr<T> make_unique(Args&&... args) +typename internals::make_unique_if<T>::single make_unique(Args&&... args) { return std::unique_ptr<T>(new T(std::forward<Args>(args)...)); } +template <typename T> +typename internals::make_unique_if<T>::unbound_array make_unique(std::size_t n) +{ + using E = typename std::remove_extent<T>::type; + + return std::unique_ptr<T>(new E[n]()); +} + +template <typename T, typename... Args> +typename internals::make_unique_if<T>::bound_array make_unique(Args&&...) = + delete; + #endif } // namespace cm |