1 // Created on: 2013-01-17
2 // Created by: Kirill GAVRILOV
3 // Copyright (c) 2013-2014 OPEN CASCADE SAS
5 // This file is part of Open CASCADE Technology software library.
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License version 2.1 as published
9 // by the Free Software Foundation, with special exception defined in the file
10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11 // distribution for complete text of the license and disclaimer of any warranty.
13 // Alternatively, this file may be used under the terms of Open CASCADE
14 // commercial license or contractual agreement.
16 #ifndef _Standard_CLocaleSentry_H__
17 #define _Standard_CLocaleSentry_H__
19 #include <Standard_Macro.hxx>
23 #ifndef HAVE_XLOCALE_H
24 //! "xlocale.h" available in Mac OS X and glibc (Linux) for a long time as an extension
25 //! and become part of POSIX since '2008.
26 //! Notice that this is impossible to test (_POSIX_C_SOURCE >= 200809L)
27 //! since POSIX didn't declared such identifier.
28 #if defined(__APPLE__)
29 #define HAVE_XLOCALE_H
32 //! We check _GNU_SOURCE for glibc extensions here and it is always defined by g++ compiler.
33 #if defined(_GNU_SOURCE) && !defined(__ANDROID__)
34 #define HAVE_XLOCALE_H
36 #endif // ifndef HAVE_LOCALE_H
42 //! This class intended to temporary switch C locale and logically equivalent to setlocale(LC_ALL, "C").
43 //! It is intended to format text regardless of user locale settings (for import/export functionality).
44 //! Thus following calls to sprintf, atoi and other functions will use "C" locale.
45 //! Destructor of this class will return original locale.
47 //! Notice that this functionality is platfrom dependent and intended only to workaround alien code
48 //! that doesn't setup locale correctly.
50 //! Internally you should prefer more portable C++ locale interfaces
51 //! or OCCT wrappers to some C functions like Sprintf, Atof, Strtod.
52 class Standard_CLocaleSentry
56 //! Setup current C locale to "C".
57 Standard_EXPORT Standard_CLocaleSentry();
59 //! Restore previous locale.
60 Standard_EXPORT virtual ~Standard_CLocaleSentry();
65 typedef locale_t clocale_t;
67 typedef _locale_t clocale_t;
69 typedef void* clocale_t;
72 //! @return locale "C" instance (locale_t within xlocale or _locale_t within Windows)
73 //! to be used for _l functions with locale argument.
74 static Standard_EXPORT clocale_t GetCLocale();
78 void* myPrevLocale; //!< previous locale, platform-dependent pointer!
80 int myPrevTLocaleState; //!< previous thread-locale state, MSVCRT-specific
85 //! Copying disallowed
86 Standard_CLocaleSentry (const Standard_CLocaleSentry& );
87 Standard_CLocaleSentry& operator= (const Standard_CLocaleSentry& );
91 #endif // _Standard_CLocaleSentry_H__