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973c2be1e1
The copying permission statements at the beginning of source files updated to refer to LGPL. Copyright dates extended till 2014 in advance.
85 lines
2.9 KiB
C++
Executable File
85 lines
2.9 KiB
C++
Executable File
// Created on: 2013-01-17
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// Created by: Kirill GAVRILOV
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// Copyright (c) 2013 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and / or modify it
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// under the terms of the GNU Lesser General Public version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Standard_CLocaleSentry_H__
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#define _Standard_CLocaleSentry_H__
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#include <Standard_Macro.hxx>
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#include <locale.h>
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//! "xlocale.h" available in Mac OS X and glibc (Linux) for a long time as an extension
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//! and become part of POSIX since '2008.
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//! Notice that this is impossible to test (_POSIX_C_SOURCE >= 200809L)
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//! since POSIX didn't declared such identifier.
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//! We check _GNU_SOURCE for glibc extensions here and it is always defined by g++ compiler.
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#if defined(__APPLE__) || defined(_GNU_SOURCE) || defined(HAVE_XLOCALE_H)
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#include <xlocale.h>
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#ifndef HAVE_XLOCALE_H
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#define HAVE_XLOCALE_H
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#endif
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#endif
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//! This class intended to temporary switch C locale and logically equivalent to setlocale(LC_ALL, "C").
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//! It is intended to format text regardless of user locale settings (for import/export functionality).
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//! Thus following calls to sprintf, atoi and other functions will use "C" locale.
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//! Destructor of this class will return original locale.
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//!
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//! Notice that this functionality is platfrom dependent and intended only to workaround alien code
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//! that doesn't setup locale correctly.
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//!
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//! Internally you should prefer more portable C++ locale interfaces
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//! or OCCT wrappers to some C functions like Sprintf, Atof, Strtod.
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class Standard_CLocaleSentry
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{
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public:
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//! Setup current C locale to "C".
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Standard_EXPORT Standard_CLocaleSentry();
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//! Restore previous locale.
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Standard_EXPORT virtual ~Standard_CLocaleSentry();
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public:
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#ifdef HAVE_XLOCALE_H
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typedef locale_t clocale_t;
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#elif defined(_WIN32)
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typedef _locale_t clocale_t;
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#else
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typedef void* clocale_t;
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#endif
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//! @return locale "C" instance (locale_t within xlocale or _locale_t within Windows)
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//! to be used for _l functions with locale argument.
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static Standard_EXPORT clocale_t GetCLocale();
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private:
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void* myPrevLocale; //!< previous locale, platform-dependent pointer!
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#ifdef _WIN32
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int myPrevTLocaleState; //!< previous thread-locale state, MSVCRT-specific
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#endif
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private:
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//! Copying disallowed
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Standard_CLocaleSentry (const Standard_CLocaleSentry& );
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Standard_CLocaleSentry& operator= (const Standard_CLocaleSentry& );
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};
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#endif // _Standard_CLocaleSentry_H__
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