libc/stdio/vfwprintf.c

278  * string representation. ``prec'' specifies the maximum number of bytes
279  * to output. If ``prec'' is greater than or equal to zero, we can't assume
283 __mbsconv(char *mbsarg, int prec)
297 	if (prec >= 0) {
305 		while (nchars != (size_t)prec) {
399 	int prec;		/* precision from format; <0 for N/A */
434 	int dprec;		/* a copy of prec if [diouxX], 0 otherwise */
576 		prec = -1;
618 				GETASTER (prec);
621 			prec = 0;
623 				prec = 10 * prec + to_digit(ch);
730 			if (prec >= 0)
731 				prec++;
735 				    __hldtoa(fparg.ldbl, xdigs, prec,
740 				    __hdtoa(fparg.dbl, xdigs, prec,
743 			if (prec < 0)
744 				prec = dtoaend - dtoaresult;
756 			if (prec < 0)	/* account for digit before decpt */
757 				prec = DEFPREC + 1;
759 				prec++;
768 			if (prec == 0)
769 				prec = 1;
771 			if (prec < 0)
772 				prec = DEFPREC;
778 				    __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec,
783 				    dtoa(fparg.dbl, expchar ? 2 : 3, prec,
806 				if (expt > -4 && expt <= prec) {
810 						prec -= expt;
812 						prec = ndig - expt;
813 					if (prec < 0)
814 						prec = 0;
821 						prec = ndig;
826 				size = expsize + prec;
827 				if (prec > 1 || flags & ALT)
836 				if (prec || flags & ALT)
837 					size += prec + 1;
905 					convbuf = __mbsconv(mbp, prec);
913 			size = (prec >= 0) ? wcsnlen(cp, prec) : wcslen(cp);
950 number:			if ((dprec = prec) >= 0)
964 				if (ujval != 0 || prec != 0 ||
969 				if (ulval != 0 || prec != 0 ||
1003 		 * size excludes decimal prec; realsz includes it.
1052 					if (prec || flags & ALT)
1056 					prec += expt;
1069 					if (prec || flags & ALT)
1072 				PRINTANDPAD(cp, convbuf + ndig, prec, zeroes);
1074 				if (prec > 1 || flags & ALT) {
1079 					PAD(prec - ndig, zeroes);