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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.

78  : m_wxLocale( nullptr )
79 {
80  // use thread safe, atomic operation
81  if( m_c_count++ == 0 )
82  {
83 #if USE_WXLOCALE
84  #define C_LANG "C"
85  m_wxLocale = new wxLocale( C_LANG, C_LANG, C_LANG, false );
86 #else
87  // Store the user locale name, to restore this locale later, in dtor
88  m_user_locale = setlocale( LC_NUMERIC, nullptr );
89 #if defined( _WIN32 ) && defined( DEBUG )
90  // Disable wxWidgets alerts
91  wxSetAssertHandler( KiAssertFilter );
92 #endif
93  // Switch the locale to C locale, to read/write files with fp numbers
94  setlocale( LC_NUMERIC, "C" );
95 #endif
96  }
97 }
wxLocale * m_wxLocale
Definition: locale_io.h:53
static std::atomic< unsigned int > m_c_count
Definition: locale_io.h:48
std::string m_user_locale
Definition: locale_io.h:52

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.

101 {
102  // use thread safe, atomic operation
103  if( --m_c_count == 0 )
104  {
105  // revert to the user locale
106 #if USE_WXLOCALE
107  delete m_wxLocale; // Deleting m_wxLocale restored previous locale
108  m_wxLocale = nullptr;
109 #else
110  setlocale( LC_NUMERIC, m_user_locale.c_str() );
111 #if defined( _WIN32 ) && defined( DEBUG )
112  // Enable wxWidgets alerts
113  wxSetDefaultAssertHandler();
114 #endif
115 #endif
116  }
117 }
wxLocale * m_wxLocale
Definition: locale_io.h:53
static std::atomic< unsigned int > m_c_count
Definition: locale_io.h:48
std::string m_user_locale
Definition: locale_io.h:52

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().


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