ntp/libntp/snprintf.c

56  * 	precision specifications; fix various floating point conversion bugs;
59  * 	check for integer overflow of the field width, precision, and return
573 	int precision = -1;
660 			if (precision == -1)
661 				precision = 0;
664 				if (precision > (INT_MAX - ch) / 10) {
668 				precision = 10 * precision + ch;
672 				 * C99 says: "A negative precision argument is
673 				 * taken as if the precision were omitted."
676 				if ((precision = va_arg(args, int)) < 0)
677 					precision = -1;
752 				    precision, flags);
797 				    precision, flags);
814 				    precision, flags, &overflow);
828 				    precision, flags, &overflow);
842 				 * If the precision is zero, it is treated as
845 				if (precision == 0)
846 					precision = 1;
848 				    precision, flags, &overflow);
859 				    precision, flags);
885 					    precision, flags);
940 			precision = -1;
958        int precision, int flags)
961 	int noprecision = (precision == -1);
966 	/* If a precision was specified, don't read the string past it. */
968 	    (noprecision || strln < precision); strln++)
980 	while (*value != '\0' && (noprecision || precision-- > 0)) {
992        int precision, int flags)
1002 	int noprecision = (precision == -1);
1022 		 * For `o' conversion, it increases the precision, if and only
1024 		 * zero (if the value and precision are both 0, a single 0 is
1030 			if (precision <= pos)
1031 				precision = pos + 1;
1042 	zpadlen = precision - pos - separators;
1045 	    - MAX(precision, pos)               /* Number of integer digits. */
1057 	 * precision is specified, the `0' flag is ignored." (7.19.6.1, 6)
1093        int precision, int flags, int *overflow)
1125 	if (precision == -1)
1126 		precision = 6;
1153 			 * For "%g" (and "%G") conversions, the precision
1157 			 * "%e" or "%E" conversions) depending on the precision
1163 			 * "e-style", the precision must be decremented by one.
1165 			precision--;
1186 		if (precision > 38)
1187 			precision = 38;
1190 		if (precision > 19)
1191 			precision = 19;
1194 		if (precision > 9)
1195 			precision = 9;
1210 	 * part.  For example, if the precision is 3, the mask will be 1000.
1212 	mask = (UINTMAX_T)mypow10(precision);
1220 		 * (because precision = 3).  Now, myround(1000 * 0.99962) will
1241 	 * "e-style", the precision must be adjusted and the integer and
1244 	 * C99 says: "Let P equal the precision if nonzero, 6 if the precision
1245 	 * is omitted, or 1 if the precision is zero.  Then, if a conversion
1249 	 *   precision P - (X + 1).
1251 	 * - otherwise, the conversion is with style `e' (or `E') and precision
1254 	 * Note that we had decremented the precision by one.
1257 	    precision + 1 > exponent && exponent >= -4) {
1258 		precision -= exponent;
1293 	leadfraczeros = precision - fpos;
1300 			omitcount = precision;
1303 		precision -= omitcount;
1310 	if (precision > 0 || flags & PRINT_F_NUM)
1318 	    - precision                 /* Number of fractional digits. */