fork download 
  1. #include <stdint.h>
  2. #include <stdio.h>
  3.  
  4. unsigned char* to_char_array(uint64_t in, unsigned char* buf)
  5. {
  6.     for(int i = 0; i < 8; ++i)
  7.         buf[i] = (in >> 8*i) & 0xFFu;
  8.     return buf;
  9. }
  10.  
  11. void output(unsigned char* key)
  12. {
  13.     printf("Current key: %02X %02X %02X %02X %02X %02X %02X %02X \n",
  14.             key[7],key[6],key[5],key[4],key[3],key[2],key[1],key[0]);
  15. }
  16.  
  17. int main()
  18. {
  19.     const uint64_t start = 0xFFFFFFFFFFFFFF0Fu;
  20.     const uint64_t end   = 0xFFFFFFFFFFFFFFFFu;
  21.     unsigned char buf[8];
  22.     //Handles overflow gracefully
  23.     for(uint64_t x = start; x != end + 1; ++x)
  24.         output(to_char_array(x, buf));
  25. }
Success #stdin #stdout 0s 2248KB
comments (?)
stdin 
Standard input is empty
stdout 
Current key: FF FF FF FF FF FF FF 0F 
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Current key: FF FF FF FF FF FF FF 7C 
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Current key: FF FF FF FF FF FF FF 8E 
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Current key: FF FF FF FF FF FF FF A0 
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Current key: FF FF FF FF FF FF FF BE 
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Current key: FF FF FF FF FF FF FF C1 
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Current key: FF FF FF FF FF FF FF CA 
Current key: FF FF FF FF FF FF FF CB 
Current key: FF FF FF FF FF FF FF CC 
Current key: FF FF FF FF FF FF FF CD 
Current key: FF FF FF FF FF FF FF CE 
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Current key: FF FF FF FF FF FF FF DA 
Current key: FF FF FF FF FF FF FF DB 
Current key: FF FF FF FF FF FF FF DC 
Current key: FF FF FF FF FF FF FF DD 
Current key: FF FF FF FF FF FF FF DE 
Current key: FF FF FF FF FF FF FF DF 
Current key: FF FF FF FF FF FF FF E0 
Current key: FF FF FF FF FF FF FF E1 
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Current key: FF FF FF FF FF FF FF EA 
Current key: FF FF FF FF FF FF FF EB 
Current key: FF FF FF FF FF FF FF EC 
Current key: FF FF FF FF FF FF FF ED 
Current key: FF FF FF FF FF FF FF EE 
Current key: FF FF FF FF FF FF FF EF 
Current key: FF FF FF FF FF FF FF F0 
Current key: FF FF FF FF FF FF FF F1 
Current key: FF FF FF FF FF FF FF F2 
Current key: FF FF FF FF FF FF FF F3 
Current key: FF FF FF FF FF FF FF F4 
Current key: FF FF FF FF FF FF FF F5 
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Current key: FF FF FF FF FF FF FF F8 
Current key: FF FF FF FF FF FF FF F9 
Current key: FF FF FF FF FF FF FF FA 
Current key: FF FF FF FF FF FF FF FB 
Current key: FF FF FF FF FF FF FF FC 
Current key: FF FF FF FF FF FF FF FD 
Current key: FF FF FF FF FF FF FF FE 
Current key: FF FF FF FF FF FF FF FF
https://ideone.com/1c3Jkx
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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