Malloc in C

Dynamic Memory Allocation in C FunctionPurposemalloc()Allocates the memory of requested size and returns the pointer to the first byte of allocated space.calloc()Allocates the space for elements of an array. Initializes the elements to zero and returns a pointer to the memory.Dynamic Memory Allocation in C using malloc(), calloc() Functions www.guru99.com › c-dynamic-memory-allocation

Dynamic Memory Allocation is a process in which we allocate or deallocate a block of memory during the run-time of a program. There are four functions malloc(), calloc(), realloc() and free() present in <stdlib.

ptr = (cast-type*) malloc(byte-size) For Example: ptr = (int*) malloc(100 * sizeof(int)); Since the size of int is 4 bytes, this statement will allocate 400 bytes of memory. And, the pointer ptr holds the address of the first byte in the allocated memory.9 Ara 2021