realloc |
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realloc |
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realloc |
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realloc |
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void *realloc( void *p, size_t s )
void *p; /* address of a previously allocated piece of memory */ size_t s; /* new size in bytes */
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Synopsis |
#include "stdlib.h"
The realloc function changes the size of the object pointed to by p to the size indicated by s . The contents of p will be unchanged unless s is smaller than its original size.
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Parameters |
p is the address of a piece of memory previously allocated from the heap (as if by malloc, calloc, etc.). s is an integer specifying the new size of the memory block.
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Return Value |
realloc returns a pointer to the new region if successful, and NULL if not, in which case the contents of p are left unchanged.
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See Also |
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