SysAllocPaged::ReallocInPlace

virtual bool ReallocInPlace(void* oldPtr, UPInt oldSize, UPInt newSize, UPInt align);

Description

ReallocInPlace attempts to reallocate memory to a new size without moving it. If such reallocation succeeds true is returned, otherwise false is returned and the previous allocation remains unchanged. This method is provided as an optimization for internal Realloc implementation for large blocks; it need not be implemented.

Parameters

Parameters	Description
void* oldPtr	Pointer to the block of memory.
UPInt oldSize	Original size of the block of memory.
UPInt newSize	New required size of the block.
UPInt align	Value of zero or power of two for memory address alignment, if supported.

Return Value

A Boolean value of true if reallocation succeeds otherwise false.