Question

I want:

111 || 100  ---> 111,  not 1
100 && 100  ---> 100,  not 1
101 && 010  ---> 000,  not 0

Broken code

#include <stdio.h>

main(void){
        string hexa = 0xff;
        strig hexa2 = 0xf1;

        // CONVERT TO INT??? cast
        int hexa3 = hexa || hexa2;
        int hexa4 = hexa && hexa2;

        puts(hexa3);
        puts(hexa4);
}

Answer 1

You want the bitwise operators (|, &) instead of the logical operators (||, &&):

110 | 011 --> 111
110 & 101 --> 100

As for your broken code, you also have incorrect types for hexa and hexb which should both be numeric types:

int hexa = 0xff;
int hexa2 = 0xf1;

Finally, to output an integer, you would use printf to format them:

printf("hexa3 = 0x%08x\n", heaxa3);   // display as 8 digit, 0 padded hex