calloc

---

header file stdlib.h

void * calloc( size_t nmemb, size_t size);

calloc() allocates memory for an array of nmemb elements of size bytes each and returns a pointer to the allocated memory. The memory is set to zero. If nmemb or size is 0, then calloc() returns either NULL, or a unique pointer value that can later be successfully passed to free().

Parameters

nmemb : Number of elements to allocate.

size : Size of each element.

Returns

returns a pointer to the allocated memory, which is suitable for any kind of data type variable. On error, it will return NULL.

#include <stdio.h> 
#include <stdlib.h> 

int main ( int argc, char* argv[])
{
	int * intArray;
	intArray = (int *)calloc( 10, sizeof(int)); 
	
	//check to see if memory allocation is success.	
	if( intArray)
	{
		//usage
		int i = 0;
		for( i = 0; i < 10; i++	)
		{
			intArray[i] = i;
		}
	
		//free after usage
		free( intArray);
	}
  
	return EXIT_SUCCESS;
}