Whoops, we have a problem with the ctype code... it is not properly
folding negative integers (i.e. when a signed char is passed to
an is*() function).
The is*() functions are returning non-zero for all negative numbers,
which is wrong.
-Matt
main()
{
int c;
for (c = -128; c < 256; ++c) {
if (isprint(c))
printf("%02x %c\n", (unsigned char)c, c);
}
return(0);
}