C calloc()

The calloc() function is used to dynamically allocate an array of memory blocks of a specified type. Each block has a default value of 0.

Syntax

calloc(numberofblocks, size);

Both numberofblocks and size are of type size_t.

Example

The following example showcases the calloc() function:

int *ptr;

// The pointer ptr holds the address of the first byte in the allocated memory
ptr = (int*) calloc(5, sizeof(int));

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The above statement allocates contiguous space in memory for 5 elements each with the size of the int.