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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 <common.h>

Public Member Functions

 LOCALE_IO ()
 
 ~LOCALE_IO ()
 

Private Member Functions

void setUserLocale (const char *aUserLocale)
 

Private Attributes

std::string m_user_locale
 

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 167 of file common.h.

Constructor & Destructor Documentation

LOCALE_IO::LOCALE_IO ( )

Definition at line 63 of file common.cpp.

References m_c_count, and m_user_locale.

64 {
65  // use thread safe, atomic operation
66  if( m_c_count++ == 0 )
67  {
68  // Store the user locale name, to restore this locale later, in dtor
69  m_user_locale = setlocale( LC_ALL, 0 );
70  // Switch the locale to C locale, to read/write files with fp numbers
71  setlocale( LC_ALL, "C" );
72  }
73 }
static std::atomic< unsigned int > m_c_count
Definition: common.h:177
std::string m_user_locale
Definition: common.h:181
LOCALE_IO::~LOCALE_IO ( )

Definition at line 76 of file common.cpp.

References m_c_count, and m_user_locale.

77 {
78  // use thread safe, atomic operation
79  if( --m_c_count == 0 )
80  {
81  // revert to the user locale
82  setlocale( LC_ALL, m_user_locale.c_str() );
83  }
84 }
static std::atomic< unsigned int > m_c_count
Definition: common.h:177
std::string m_user_locale
Definition: common.h:181

Member Function Documentation

void LOCALE_IO::setUserLocale ( const char *  aUserLocale)
private

Member Data Documentation

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

Definition at line 177 of file common.h.

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

std::string LOCALE_IO::m_user_locale
private

Definition at line 181 of file common.h.

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


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