gnu/lib/libregex/test/printchar.c


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void
printchar (c)
     char c;
{
  if (c < 040 || c >= 0177)
    {
      putchar ('\\');
      putchar (((c >> 6) & 3) + '0');
      putchar (((c >> 3) & 7) + '0');
      putchar ((c & 7) + '0');
    }
  else
    putchar (c);
}