_msize

// Returns the size of a memory block allocated in the heap

size_t _msize( void *memblock );

 

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ex)

#include <malloc.h>

 

int TC14()
{
 char* pStr;
 int nSize;

 pStr = (char*)malloc(10*sizeof(char)); 
 nSize = _msize(pStr);

 printf("nSize = %d\n", nSize);

 return 1;
}