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 #if defined(__APPLE__)
27 #ifndef OCCT_CLOCALE_POSIX2008
28 //! @def OCCT_CLOCALE_POSIX2008
30 //! POSIX.1-2008 extends C locale API by providing methods like newlocale/freelocale/uselocale.
31 //! Presence of this extension cannot be checked in straightforward way (like (_POSIX_C_SOURCE >= 200809L))
32 //! due to missing such declarations in standard.
33 //! On macOS new functions are declared within "xlocale.h" header (the same is for glibc, but this header has been removed since glibc 2.26).
34 #if defined(__APPLE__)
35 #define OCCT_CLOCALE_POSIX2008
38 //! We check _GNU_SOURCE for glibc extensions here and it is always defined by g++ compiler.
39 #if defined(_GNU_SOURCE) && !defined(__ANDROID__)
40 #define OCCT_CLOCALE_POSIX2008
44 #if !defined(__ANDROID__)
46 //! This class intended to temporary switch C locale and logically equivalent to setlocale(LC_ALL, "C").
47 //! It is intended to format text regardless of user locale settings (for import/export functionality).
48 //! Thus following calls to sprintf, atoi and other functions will use "C" locale.
49 //! Destructor of this class will return original locale.
51 //! Notice that this functionality is platform dependent and intended only to workaround alien code
52 //! that doesn't setup locale correctly.
54 //! Internally you should prefer more portable C++ locale interfaces
55 //! or OCCT wrappers to some C functions like Sprintf, Atof, Strtod.
56 class Standard_CLocaleSentry
60 //! Setup current C locale to "C".
61 Standard_EXPORT Standard_CLocaleSentry();
63 //! Restore previous locale.
64 Standard_EXPORT ~Standard_CLocaleSentry();
68 #ifdef OCCT_CLOCALE_POSIX2008
69 typedef locale_t clocale_t;
70 #elif defined(_MSC_VER)
71 typedef _locale_t clocale_t;
73 typedef void* clocale_t;
76 //! @return locale "C" instance (locale_t within xlocale or _locale_t within Windows)
77 //! to be used for _l functions with locale argument.
78 static Standard_EXPORT clocale_t GetCLocale();
82 void* myPrevLocale; //!< previous locale, platform-dependent pointer!
84 int myPrevTLocaleState; //!< previous thread-locale state, MSVCRT-specific
89 //! Copying disallowed
90 Standard_CLocaleSentry (const Standard_CLocaleSentry& );
91 Standard_CLocaleSentry& operator= (const Standard_CLocaleSentry& );
97 //! C/C++ runtime on Android currently supports only C-locale, no need to call anything.
98 class Standard_CLocaleSentry
101 Standard_CLocaleSentry() {}
102 typedef void* clocale_t;
103 static clocale_t GetCLocale() { return 0; }
106 #endif // __ANDROID__
108 #endif // _Standard_CLocaleSentry_H__