Memory Handling Primitive
Pointer based primitive for handling memory
#include <memory>
template <class T> pair<T*, ptrdiff_t> get_temporary_buffer (ptrdiff_t, T*);
The get_temporary_buffer templated function reserves from system memory the largest possible buffer that is less than or equal to the size requested (n*sizeof(T)), and returns a pair<T*, ptrdiff_t> containing the address and size of that buffer. The units used to describe the capacity are in sizeof(T).
allocator, pair, return_temporary_buffer.