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sack::memory::HeapReallocateEx Function
sharemem.h  Functions  Send Feedback
C++
MEM_PROC POINTER MEM_API HeapReallocateEx(PMEM pHeap, POINTER source, PTRSZVAL size DBG_PASS);
#define HeapReallocate(heap,p,sz) HeapReallocateEx( (heap),(p),(sz) DBG_SRC )
MEM_PROC POINTER MEM_API ReallocateEx(POINTER source, PTRSZVAL size DBG_PASS);
File
Parameters
Parameters 
Description 
PMEM pHeap 
If NULL or not specified, uses the common memory heap. 
POINTER source 
pointer to the block to pre-allocate. If NULL, a new memory block will be allocated that is filled with 0. 
size 
the new size of the block. 
Returns

A pointer to a new block of memory that is the new size.

Description

This can be used to add additional space after the end of a memory block.

Remarks

If the size specified for the new block is larger than the previous size of the block, the curernt data is copied to the beginning of the new block, and the memory after the existing content is cleared to 0. 

If the size specified for the new block is smaller than the previous size, the end of the original block is not copied to the new block. 

If NULL is passed as the source block, then a new block filled with 0 is created.

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