What is the difference between calloc() and malloc() in c ?

Question

what is difference between new and malloc ??

Answer 1

malloc(): Allocates requested size of bytes and returns a pointer first byte of allocated space. The contents of allocated memory are not changed. i.e., the memory contains unpredictable or garbage values. This presents a risk.
calloc(): Calculates the size to be allocated and allocates, initializes it to zero and then returns a pointer to memory.

Syntax

void *malloc (size_in_bytes);
void *calloc (number_of_blocks, size_of_each_block_in_bytes);

Example

int * array;
if ( NULL == (array = malloc(10 * sizeof(int))) ) {
  printf("malloc failed\n");
  return(-1);
}

int * array;
if ( NULL == (array = calloc(10, sizeof(int))) ) {
  printf("calloc failed\n");
  return(-1);
}