allocate memory for structure in c code example

Example 1: c allocate memory for struct

#include <stdlib.h>
struct your_struct *x = malloc(sizeof(struct your_struct));

Example 2: allocate memory c

// Use malloc to allocate memory
ptr = (castType*) malloc(size);
int *exampl = (int*) malloc(sizeof(int));
// Use calloc to allocate and inizialize n contiguous blocks of memory
ptr = (castType*) calloc(n, size);
char *exampl = (char*) calloc(20, sizeof(char));