Re: Posix(?) on numeric entry
- From: "David Necas (Yeti)" <yeti physics muni cz>
- To: antongiulio <antongiulio email it>
- Cc: gtk-list gnome org
- Subject: Re: Posix(?) on numeric entry
- Date: Tue, 15 Feb 2005 10:52:48 +0100
On Tue, Feb 15, 2005 at 10:37:48AM +0100, antongiulio wrote:
> my app writes a "double" value on a gtk_entry with this code:
> gchar *buffer;
> double value = 2.59787;
> buffer = g_strdup_printf("%g", value);
> gtk_entry_set_text (GTK_ENTRY (value_entry), buffer);
> g_free (buffer);
> this value appears like: 2,59787 where ',' replaces a '.'
> I suppose it's related to *_NL locale replaces posix locale.
> How can I replace ',' with dot notation?
Don't. If user expressed his wish to format numbers with
a decimal comma instead of point by setting LC_NUMERIC, you
should not enforce decimal point. And other functions like
scanf() use/expect decimal comma too in such a locale
If you didn't format the numbers for user interface, but to
serialize them to some data file for example, you could use
g_ascii_dtostr() or g_ascii_formatd(), but for user
interface this would be arrogant.
A: Because it messes up the order in which people normally read text.
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