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  1. #include <stdio.h>
  2. typedef unsigned char byte;
  3.  
  4. void printBytes(byte *state, int len)
  5. {
  6.   int i;
  7.   for (i = 0; i < len; i++)
  8.   {
  9.     printf("%02X ", state[i]);
  10.   }
  11.  
  12.   printf("\n");
  13. }
  14.  
  15. // Re-invent the byte using arbitrary length array (i.e. BigNumber)
  16. // to increment 16-byte nonce
  17. void incByte(byte *state, int i)
  18. {
  19.   // 0000 -> 0001
  20.   if (state[i] < 0xff)
  21.   {
  22.     state[i]++;
  23.     return;
  24.   }
  25.  
  26.   // 0001 -> 0010
  27.   state[i] = 0x00;
  28.   i--;
  29.   incByte(state, i);
  30. }
  31.  
  32.  
  33.  
  34. void testInc()
  35. {
  36.   byte state[] = { 0x00, 0xff, 0xff, 0xee };
  37.  
  38.   int i;
  39.   for (i = 1; i <= 100; i++)
  40.   {
  41.     incByte(state, sizeof(state) - 1);
  42.     printBytes(state, sizeof(state));
  43.   }
  44. }
  45.  
  46. int main(void) {
  47. 	testInc();
  48. 	return 0;
  49. }
  50.  
Success #stdin #stdout 0s 2008KB
comments (?)
stdin
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Standard input is empty
stdout
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00 FF FF EF 
00 FF FF F0 
00 FF FF F1 
00 FF FF F2 
00 FF FF F3 
00 FF FF F4 
00 FF FF F5 
00 FF FF F6 
00 FF FF F7 
00 FF FF F8 
00 FF FF F9 
00 FF FF FA 
00 FF FF FB 
00 FF FF FC 
00 FF FF FD 
00 FF FF FE 
00 FF FF FF 
01 00 00 00 
01 00 00 01 
01 00 00 02 
01 00 00 03 
01 00 00 04 
01 00 00 05 
01 00 00 06 
01 00 00 07 
01 00 00 08 
01 00 00 09 
01 00 00 0A 
01 00 00 0B 
01 00 00 0C 
01 00 00 0D 
01 00 00 0E 
01 00 00 0F 
01 00 00 10 
01 00 00 11 
01 00 00 12 
01 00 00 13 
01 00 00 14 
01 00 00 15 
01 00 00 16 
01 00 00 17 
01 00 00 18 
01 00 00 19 
01 00 00 1A 
01 00 00 1B 
01 00 00 1C 
01 00 00 1D 
01 00 00 1E 
01 00 00 1F 
01 00 00 20 
01 00 00 21 
01 00 00 22 
01 00 00 23 
01 00 00 24 
01 00 00 25 
01 00 00 26 
01 00 00 27 
01 00 00 28 
01 00 00 29 
01 00 00 2A 
01 00 00 2B 
01 00 00 2C 
01 00 00 2D 
01 00 00 2E 
01 00 00 2F 
01 00 00 30 
01 00 00 31 
01 00 00 32 
01 00 00 33 
01 00 00 34 
01 00 00 35 
01 00 00 36 
01 00 00 37 
01 00 00 38 
01 00 00 39 
01 00 00 3A 
01 00 00 3B 
01 00 00 3C 
01 00 00 3D 
01 00 00 3E 
01 00 00 3F 
01 00 00 40 
01 00 00 41 
01 00 00 42 
01 00 00 43 
01 00 00 44 
01 00 00 45 
01 00 00 46 
01 00 00 47 
01 00 00 48 
01 00 00 49 
01 00 00 4A 
01 00 00 4B 
01 00 00 4C 
01 00 00 4D 
01 00 00 4E 
01 00 00 4F 
01 00 00 50 
01 00 00 51 
01 00 00 52
https://ideone.com/twL8Vx
language:
C (gcc 8.3)
created:
10 years ago
visibility:
secret

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