std::pmr::polymorphic_allocator::allocate
T* allocate( std::size_t n ); | | (since C++17) |
|---|
为n类型对象T使用底层内存资源。相当于return static_cast<T*>(this->resource()->allocate(n * sizeof(T), alignof(T)));
参数
n | - | the number of objects to allocate storage for |
|---|
返回值
指向分配的存储的指针。
另见
allocate static | allocates uninitialized storage using the allocator (public static member function of std::allocator_traits) |
|---|---|
allocate | allocates memory (public member function of std::pmr::memory_resource) |
© cppreference.com在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
