c dynamic memory allocation code example
Example 1: allocate memory c
ptr = (castType*) malloc(size);
int *exampl = (int*) malloc(sizeof(int));
ptr = (castType*) calloc(n, size);
char *exampl = (char*) calloc(20, sizeof(char));
Example 2: malloc in c
#include <stdlib.h>
void *malloc(size_t size);
void exemple(void)
{
char *string;
string = malloc(sizeof(char) * 5);
if (string == NULL)
return;
string[0] = 'H';
string[1] = 'e';
string[2] = 'y';
string[3] = '!';
string[4] = '\0';
printf("%s\n", string);
free(string);
}