longtoa - convert LONG to ASCII
char *longtoa (l)
Longtoa converts the LONG value l to its ASCII representation and returns a pointer to that string. The format returned by getfint(C-3) provides the format to convert the LONG value. Longtoa removes all leading blanks from the resulting string before returning the result.
The parameter passed to longtoa must be a long integer (long). This is not necessarily the same as just integer (int). To make sure the correct value type is passed, the parameter should always be cast as a long:
s = longtoa ((long) counts);
getfint(C-3), flongtoa(C-3), atolong(C-3)
C/Base Reference Manual Chapter 13, "Formatting Data Values"
If the format is invalid, a pointer to an empty string is returned.
The return value points to static data whose contents are overwritten with every call.