NS_Realloc 编辑

« XPCOM API Reference

Summary

Reallocates a block of memory using the XPCOM memory manager.

#include "nsXPCOM.h"

void* NS_Realloc(
  void* aPtr,
  PRSize aSize
);

Parameters

aPtr

[in] A pointer to the block of memory to reallocate. This pointer must have been previously allocated by the XPCOM memory manager, or this parameter may be null in which case this function behaves like NS_Alloc.

aSize

[in] The size in bytes of the block to allocate, or zero if the given block is to be freed.

Return Values

This function returns a pointer to the allocated block of memory, which is suitably aligned for any kind of variable, or null if the allocation failed.

Remarks

This function provides a convenient way to access the XPCOM memory manager. It is equivalent to calling realloc on the nsIMemory instance returned from NS_GetMemoryManager.

History

This function was finalized for Mozilla 1.8. See bug 267767 for details.

See Also

nsIMemory, NS_GetMemoryManager