Solution for Exercise 17-8
ex1708
#include <stdio.h> char *binbin(int n); int main() { int a,x,r; a = 73; x = 170; printf(" %s %3d\n",binbin(a),a); printf("^ %s %3d\n",binbin(x),x); r = a ^ x; printf("= %s %3d\n",binbin(r),r); return(0); } char *binbin(int n) { static char bin[9]; int x; for(x=0;x<8;x++) { bin[x] = n & 0x80 ? '1' : '0'; n <<= 1; } bin[x] = '\0'; return(bin); }
Notes
* Here's sample output:
* When the two bits (first two binary numbers above) are different, XOR produces a 1. When the two bits are the same — either 1 and 1 or 0 and 0 — the XOR produces a 0.
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