Return a newly allocated block of memory of the specified size bytes.
Synopsis
Declared in <bslma_mallocfreeallocator.h>
virtual
void*
allocate(size_type size) override;Description
Return a newly allocated block of memory of (at least) the specified positive size (in bytes). If size is 0, a null pointer is returned with no other effect. If this allocator cannot return the requested number of bytes, then it will return a null pointer. The behavior is undefined unless 0 <= size. Note that the alignment of the address returned is the maximum alignment for any type defined on this platform. Also note that std::malloc is not called when size is 0 (in order to avoid having to acquire a lock, and potential contention in multi‐treaded programs).
Return Value
pointer to the allocated memory, or null if size is 0 or allocation fails
Parameters
Name |
Description |
size |
number of bytes to allocate |
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