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Nov 28th, 2014
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  1.  
  2. char *decimal_to_binary(int n)
  3. {
  4.    int c, d, count;
  5.    char *pointer;
  6.  
  7.    count = 0;
  8.    pointer = (char*)malloc(32+1);
  9.  
  10.    if ( pointer == NULL )
  11.       exit(EXIT_FAILURE);
  12.  
  13.    for ( c = 31 ; c >= 0 ; c-- )
  14.    {
  15.       d = n >> c;
  16.  
  17.       if ( d & 1 )
  18.          *(pointer+count) = 1 + '0';
  19.       else
  20.          *(pointer+count) = 0 + '0';
  21.  
  22.       count++;
  23.    }
  24.    *(pointer+count) = '\0';
  25.    printf("%d\n", atoi(pointer));
  26.    return  pointer;
  27. }
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