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livetrax/libs/pbd/locale_guard.cc

55 lines
1.3 KiB
C++

/*
Copyright (C) 2012 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include "pbd/locale_guard.h"
using namespace PBD;
// try to avoid calling setlocale() recursively. this is not thread-safe.
std::string PBD::LocaleGuard::current;
LocaleGuard::LocaleGuard (const char* str)
: old(0)
{
if (current != str) {
old = strdup (setlocale (LC_NUMERIC, NULL));
if (strcmp (old, str)) {
if (setlocale (LC_NUMERIC, str)) {
current = str;
}
}
}
}
LocaleGuard::~LocaleGuard ()
{
if (old) {
if (setlocale (LC_NUMERIC, old)) {
current = old;
}
free (old);
}
}