[libgda] Correction for bug #720594

[Vivien Malerba <vivien src gnome org>]

commit b85faf3eacd4bf8ce182938fbfd0b89dab5ac6a8
Author: Vivien Malerba <malerba gnome-db org>
Date:   Fri Dec 20 19:19:25 2013 +0100

    Correction for bug #720594

 libgda/gda-value.c |   23 ++++++++++++-----------
 1 files changed, 12 insertions(+), 11 deletions(-)
---
diff --git a/libgda/gda-value.c b/libgda/gda-value.c
index 80a930d..6dcc31c 100644
--- a/libgda/gda-value.c
+++ b/libgda/gda-value.c
@@ -799,7 +799,7 @@ numeric_to_double (const GValue *src, GValue *dest)
 
        numeric = gda_value_get_numeric (src);
        if (numeric)
-               g_value_set_double (dest, g_strtod (numeric->number, NULL));
+               g_value_set_double (dest, gda_numeric_get_double (numeric));
        else
                g_value_set_double (dest, 0.0);
 }
@@ -814,7 +814,7 @@ numeric_to_float (const GValue *src, GValue *dest)
 
        numeric = gda_value_get_numeric (src);
        if (numeric)
-               g_value_set_float (dest, (float) g_strtod (numeric->number, NULL));
+               g_value_set_float (dest, (float) gda_numeric_get_double (numeric));
        else
                g_value_set_float (dest, 0.0);
 }
@@ -912,10 +912,10 @@ gda_numeric_new (void)
  * @numeric: a #GdaNumeric
  * @str: a string representing a number
  *
- * Sets @numeric with a number represented by @str. By default converts @str to
- * #gdouble.
+ * Sets @numeric with a number represented by @str, in the C locale format (dot as a fraction separator).
+ * By default converts @str to #gdouble.
  *
- * * Since: 5.0.2
+ * Since: 5.0.2
  */
 void
 gda_numeric_set_from_string (GdaNumeric *numeric, const gchar* str)
@@ -924,8 +924,8 @@ gda_numeric_set_from_string (GdaNumeric *numeric, const gchar* str)
        g_return_if_fail (str);
        g_free (numeric->number);
        // FIXME: By default convert string to gdouble, for other number types we need to check string format
-       gdouble n = g_strtod (str, NULL);
        setlocale (LC_NUMERIC, "C");
+       gdouble n = g_strtod (str, NULL);
        numeric->number = g_strdup_printf ("%lf", n);
        setlocale (LC_NUMERIC, gda_numeric_locale);
 }
@@ -958,13 +958,14 @@ gda_numeric_set_double (GdaNumeric *numeric, gdouble number)
  * Since: 5.0.2
  */
 gdouble
-gda_numeric_get_double (GdaNumeric *numeric)
+gda_numeric_get_double (const GdaNumeric *numeric)
 {
        g_return_val_if_fail (numeric, 0.0);
-       if (numeric->number)
-               return atof (numeric->number);
-       else
-               return 0.0;
+       gdouble res;
+       setlocale (LC_NUMERIC, "C");
+       res = atof (numeric->number);
+       setlocale (LC_NUMERIC, gda_numeric_locale);
+       return res;
 }
 
 /**