Why does the while loop stop before the else statement? - c

Question

I want to execute the outputs that are in else statements (True or Nothing) but for some reason, my while loop only executes either first if statement or else if. I know that I am using infinite loop but I want to leave it by using break function that is in one of the two of else statements. What I want is to execute the else statements, so, Do they have hair? ->Y -> Messi? -> Y-> True. Or Do they have hair -> N -> Beckham? -> Y -> True. Or Do they have hair -> N -> Beckham ->N ->Nothing. Or Do they have hair -> T->Messi->N-> Nothing
#include <stdio.h>
#include <strings.h>
int random(char z[]);
int main() {
char *x ="Do they have hair";
char *yes = "Messi";
char *no = "Beckham";
char *u ="Nope";
do {
char *currents = x;
while (1) {
if (random(currents)) {
if (yes) {
currents = yes;
printf("First check\n");
} else {
printf("True: %s\n", yes);
break;
}
} else if (no) {
currents = no;
printf("False\n");
} else {
printf("Nothing\n");
break;
}
}
}while(random("Run Again?"));
return 0;
}
int random(char z[])
{
char a[3];
printf("%s: %s",z,a);
fgets(a, 3,stdin);
return a[0] == 'y';
}

Answer 1

Your while loop is not be quit because if (yes) and if(no) are always true.
yes is Messi. All non-zero value is referenced as true.
So, Your yes value has always the address of memory where Messi is saved. and It's always non-zero.
no is also same. no is always pointing on Beckham. So, It's true
So, I modified the code for your logic. Please refer the following code:
#include <string.h>
#include <iostream>
#include <stdio.h>
int random(char z[]);
int main() {
char x[] = "Do they have hair";
char again[] = "run again";
char yes[] = "Messi";
char no[] = "Beckham";
char u[] = "Nope";
do {
if (random(x)) {
if (random(yes)) printf("True!\n");
else printf("Nothing!\n");
}
else {
if (random(no)) printf("True!\n");
else printf("Nothing!\n");
}
} while (random(again));
return 0;
}
int random(char z[])
{
char a[3];
printf("%s?:", z);
fgets(a, 3, stdin);
return a[0] == 'y';
}