C

equal string c

#include <string.h>
// strcmp is a function from the stadard string library that returns 0 of both strings are equals

int main () {

	// for exemple
	char[] str1 = "Hey!";
  	char[] str2 = "Hey!";
  	char[] str3 = "Hola";
  
  	// instead of "if (str1 == srt2)" you'll need to use
  	if (strcmp(str1, str2) == 0)
        printf("str1 = str2
");
	
  	if (strcmp(str1, str3) != 0)
        printf("str1 != str2
");
  
	return 0;
}

c string equal

int strEqu(char *a, char *b)
{
	int i = 0;
	while (1)
	{
		if (*(a + i) == 0 && *(b + i) == 0) return 1;
		else if (*(a + i) != *(b + i)) return 0;
		i++;

	}

}