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  1. #include <stdio.h>
  2.  
  3. void convert_hex_4b_to_string(char buf[9], int ar[4])
  4. {
  5.     static const char tbl[] = "0123456789ABCDEF";
  6.     buf[0] = tbl[((unsigned)ar[0] >> 4) & 0x0f];
  7.     buf[1] = tbl[((unsigned)ar[0]) & 0x0f];
  8.     buf[2] = tbl[((unsigned)ar[1] >> 4) & 0x0f];
  9.     buf[3] = tbl[((unsigned)ar[1]) & 0x0f];
  10.     buf[4] = tbl[((unsigned)ar[2] >> 4) & 0x0f];
  11.     buf[5] = tbl[((unsigned)ar[2]) & 0x0f];
  12.     buf[6] = tbl[((unsigned)ar[3] >> 4) & 0x0f];
  13.     buf[7] = tbl[((unsigned)ar[3]) & 0x0f];
  14.     buf[8] = '\0';
  15. }
  16.  
  17. int main(void)
  18. {
  19.     char buf[9];
  20.     int ar[] = { 0x34, 0x31, 0xF5, 0x43 };
  21.     convert_hex_4b_to_string(buf, ar);
  22.     puts(buf);
  23.     return 0;
  24. }
  25.  
Success #stdin #stdout 0s 2292KB
comments (?)
stdin 
Standard input is empty
stdout 
3431F543
https://ideone.com/xNFM4s
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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