From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 14 Feb 2005 09:35:06 +0000 (+0000)
Subject: use "C" locale when parsing floating point numbers
X-Git-Tag: v1.0.9rc1~25
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=49c9eba8e4cdfa4ca40e8271e25dfb666c130cd5;p=alsa-lib.git

use "C" locale when parsing floating point numbers

Floating point numbers in configuration files always use "." as separator,
so set the locale temporarily to "C" when calling strtod().
---

diff --git a/src/conf.c b/src/conf.c
index 4ef2a6ae..066e07e1 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -420,6 +420,7 @@ beginning:</P>
 #include <limits.h>
 #include <sys/stat.h>
 #include <pthread.h>
+#include <locale.h>
 #include "local.h"
 
 #ifndef DOC_HIDDEN
@@ -497,12 +498,19 @@ static int safe_strtod(const char *str, double *val)
 {
 	char *end;
 	double v;
+	char *saved_locale;
+	int err;
+
 	if (!*str)
 		return -EINVAL;
+	saved_locale = setlocale(LC_NUMERIC, NULL);
+	setlocale(LC_NUMERIC, "C");
 	errno = 0;
 	v = strtod(str, &end);
-	if (errno)
-		return -errno;
+	err = -errno;
+	setlocale(LC_NUMERIC, saved_locale);
+	if (err)
+		return err;
 	if (*end)
 		return -EINVAL;
 	*val = v;