1 /*
2  * This program source code file is part of KiCad, a free EDA CAD application.
3  *
4  * Copyright (C) 1992-2020 KiCad Developers, see AUTHORS.txt for contributors.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, you may find one here:
18  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
19  * or you may search the http://www.gnu.org website for the version 2 license,
20  * or you may write to the Free Software Foundation, Inc.,
21  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
22  */
23 
24 #ifndef LOCALE_IO_H
25 #define LOCALE_IO_H
26 
27 #include <atomic>
28 #include <string>
29 
30 class wxLocale;
31 
32 /**
33  * Instantiate the current locale within a scope in which you are expecting
34  * exceptions to be thrown.
35  *
36  * The constructor sets a "C" language locale option, to read/print files with floating
37  * point  numbers.  The destructor insures that the default locale is restored if an
38  * exception is thrown or not.
39  */
40 class LOCALE_IO
41 {
42 public:
43     LOCALE_IO();
44     ~LOCALE_IO();
45 
46 private:
47     // allow for nesting of LOCALE_IO instantiations
48     static std::atomic<unsigned int> m_c_count;
49 
50     // The locale in use before switching to the "C" locale
51     // (the locale can be set by user, and is not always the system locale)
52     std::string m_user_locale;
53     wxLocale*   m_wxLocale;
54 };
55 
56 #endif