fork download
copy 
  1. #include <stdio.h>
  2.  
  3. #define GETBITSTATE(state, i) (!!((0x80 >> (i & 7)) & state[i >> 3]))
  4.  
  5. int getBitState(unsigned char* state, int i) //
  6. {
  7.     return !!((0x80 >> (i & 7)) & state[i >> 3]);
  8. }
  9.  
  10. void subBytes(unsigned char* state) {
  11.     int i;
  12.     printf("Using function:\n");
  13.     for(i = 0; i<=127; i++) {
  14.  
  15.         printf("%d",getBitState(state, i));
  16.  
  17.         if(i%32==31){printf("\n");}
  18.         else if(i%8==7) {printf(",");}
  19.     }
  20.     printf("Using macro:\n");
  21.     for(i = 0; i<=127; i++) {
  22.  
  23.         printf("%d",GETBITSTATE(state, i));
  24.  
  25.         if(i%32==31){printf("\n");}
  26.         else if(i%8==7) {printf(",");}
  27.     }
  28.     printf("\n");
  29. }
  30.  
  31. int main()
  32. {
  33.     unsigned char derp[16] = {50,  67, 246, 168,
  34.                               136, 90, 48,  141,
  35.                               49,  49, 152, 162,
  36.                               224, 55, 7,   52  };
  37.  
  38.     subBytes(derp);
  39.     return 0;
  40. }
Success #stdin #stdout 0.01s 1676KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Using function:
00110010,01000011,11110110,10101000
10001000,01011010,00110000,10001101
00110001,00110001,10011000,10100010
11100000,00110111,00000111,00110100
Using macro:
00110010,01000011,11110110,10101000
10001000,01011010,00110000,10001101
00110001,00110001,10011000,10100010
11100000,00110111,00000111,00110100
https://ideone.com/N0g4Z6
language:
C (gcc 8.3)
created:
12 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!