LOCALE_IO Class Reference

Instantiate the current locale within a scope in which you are expecting exceptions to be thrown. More...

#include <locale_io.h>

Public Member Functions
	LOCALE_IO ()
	~LOCALE_IO ()

Private Attributes
std::string	m_user_locale
wxLocale *	m_wxLocale

Static Private Attributes
static std::atomic< unsigned int >	m_c_count

Detailed Description

Instantiate the current locale within a scope in which you are expecting exceptions to be thrown.

The constructor sets a "C" language locale option, to read/print files with floating point numbers. The destructor insures that the default locale is restored if an exception is thrown or not.

Definition at line 40 of file locale_io.h.

Constructor & Destructor Documentation

LOCALE_IO()

LOCALE_IO::LOCALE_IO

(

)

Definition at line 78 of file locale_io.cpp.

                     : m_wxLocale( nullptr )
{
    // use thread safe, atomic operation
    if( m_c_count++ == 0 )
    {
#if USE_WXLOCALE
        #define C_LANG "C"
        m_wxLocale = new wxLocale( C_LANG, C_LANG, C_LANG, false );
#else
        // Store the user locale name, to restore this locale later, in dtor
        m_user_locale = setlocale( LC_NUMERIC, nullptr );
#if defined( _WIN32 ) && defined( DEBUG )
        // Disable wxWidgets alerts
        wxSetAssertHandler( KiAssertFilter );
#endif
        // Switch the locale to C locale, to read/write files with fp numbers
        setlocale( LC_NUMERIC, "C" );
#endif
    }
}

References m_c_count, m_user_locale, and m_wxLocale.

~LOCALE_IO()

LOCALE_IO::~LOCALE_IO

(

)

Definition at line 100 of file locale_io.cpp.

{
    // use thread safe, atomic operation
    if( --m_c_count == 0 )
    {
        // revert to the user locale
#if USE_WXLOCALE
        delete m_wxLocale;      // Deleting m_wxLocale restored previous locale
        m_wxLocale = nullptr;
#else
        setlocale( LC_NUMERIC, m_user_locale.c_str() );
#if defined( _WIN32 ) && defined( DEBUG )
        // Enable wxWidgets alerts
        wxSetDefaultAssertHandler();
#endif
#endif
    }
}

References m_c_count, m_user_locale, and m_wxLocale.

Member Data Documentation

m_c_count

std::atomic< unsigned int > LOCALE_IO::m_c_count

staticprivate

Definition at line 48 of file locale_io.h.

Referenced by LOCALE_IO(), and ~LOCALE_IO().

m_user_locale

std::string LOCALE_IO::m_user_locale

private

Definition at line 52 of file locale_io.h.

Referenced by LOCALE_IO(), and ~LOCALE_IO().

m_wxLocale

wxLocale* LOCALE_IO::m_wxLocale

private

Definition at line 53 of file locale_io.h.

Referenced by LOCALE_IO(), and ~LOCALE_IO().

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The documentation for this class was generated from the following files:

• locale_io.h
• locale_io.cpp