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Oct 08nice_num, mean_programmer
by in CodeSOD on 2008-11-28When Timothy stumbled across a function that had a vague name, no comments, and variables, he took a few minutes to try to break it down in his head.
static char *nice_num(long n)
{
int neg = 0, d = 3;
char *buffer = prtbuf;
int bufsize = 20;
if (n < 0)
{
neg = 1;
n = -n;
}
buffer += bufsize;
*--buffer = '\0';
do
{
*--buffer = '0' + (n % 10);
n /= 10;
if (--d == 0)
{
d = 3;
*--buffer = ',';
}
}
while (n);
if (*buffer == ',') ++buffer;
if (neg) *--buffer = '-';
return buffer;
}
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