Take decimal point from locale instead of hardcoded '.' (SUSv2)

1 files changed, 10 insertions, 9 deletions

diff --git a/lib/libc/stdio/vfprintf.c b/lib/libc/stdio/vfprintf.c
index fff9aa8..ffdf522 100644
--- a/lib/libc/stdio/vfprintf.c
+++ b/lib/libc/stdio/vfprintf.c
@@ -261,6 +261,7 @@ vfprintf(FILE *fp, const char *fmt0, va_list ap)
 }
 
 #ifdef FLOATING_POINT
+#include <locale.h>
 #include <math.h>
 #include "floatio.h"
 
@@ -307,6 +308,7 @@ __vfprintf(FILE *fp, const char *fmt0, va_list ap)
 	int prec;		/* precision from format (%.3d), or -1 */
 	char sign;		/* sign prefix (' ', '+', '-', or \0) */
 #ifdef FLOATING_POINT
+	char *decimal_point = localeconv()->decimal_point;
 	char softsign;		/* temporary negative sign for floats */
 	double _double;		/* double precision arguments %[eEfgG] */
 	int expt;		/* integer value of exponent */
@@ -811,32 +813,31 @@ number:			if ((dprec = prec) >= 0)
 			if (ch >= 'f') {	/* 'f' or 'g' */
 				if (_double == 0) {
 					/* kludge for __dtoa irregularity */
-					if (expt >= ndig &&
-					    (flags & ALT) == 0) {
-						PRINT("0", 1);
-					} else {
-						PRINT("0.", 2);
+					PRINT("0", 1);
+					if (expt < ndig || (flags & ALT) != 0) {
+						PRINT(decimal_point, 1);
 						PAD(ndig - 1, zeroes);
 					}
 				} else if (expt <= 0) {
-					PRINT("0.", 2);
+					PRINT("0", 1);
+					PRINT(decimal_point, 1);
 					PAD(-expt, zeroes);
 					PRINT(cp, ndig);
 				} else if (expt >= ndig) {
 					PRINT(cp, ndig);
 					PAD(expt - ndig, zeroes);
 					if (flags & ALT)
-						PRINT(".", 1);
+						PRINT(decimal_point, 1);
 				} else {
 					PRINT(cp, expt);
 					cp += expt;
-					PRINT(".", 1);
+					PRINT(decimal_point, 1);
 					PRINT(cp, ndig-expt);
 				}
 			} else {	/* 'e' or 'E' */
 				if (ndig > 1 || flags & ALT) {
 					ox[0] = *cp++;
-					ox[1] = '.';
+					ox[1] = *decimal_point;
 					PRINT(ox, 2);
 					if (_double) {
 						PRINT(cp, ndig-1);