string in char array in c code example

Example 1: how to print char array in c

char a_static[] = { 'q', 'w', 'e', 'r', '\0' };
char b_static[] = { 'a', 's', 'd', 'f', '\0' };

printf("value of a_static: %s\n", a_static);
printf("value of b_static: %s\n", b_static);
return 0;

Example 2: string in c

#include <stdio.h>

int main() {
  char *str1 = strdup("Hello");
  char *str2 = malloc(sizeof(char) * (strlen(str1) + 1));
  
  for (int i = 0; i < strlen(str1); ++i)
    str2[i] = str1[i];
  str2[strlen(str1)] = '\0'; // very important, the string stop to print
  printf("%s --> %s\n", str1, str2);
}

Example 3: how to feed a char array to function in C

//If you know the size of the array you can pass it like this
void function(char array[10]) {
	//Do something with the array...
}

int main() {
	char array[] = {'a', 'b', ..., 'j'};
    function(array);
}