I tested it, it works as it is.

#include <stdio.h>
#include <stdbool.h>

void main(){
        bool true_or_false = true;
        if(true_or_false){
                goto if_true;
        }
        printf("This code runs only if false.\n");
        goto end_false_if;
if_true:
        printf("This code runs only if true.\n");
end_false_if:
        printf("This code always runs.\n");
}

If true, it jumps to if_true, then runs other code. If false, the if gets skipped, if false code gets run, then it skips over if true code.