std::locale::combine

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Technical Specifications

 

Localizations library

Locales and facets
locale
use_facet	has_facet
Character classification
isspace isblank (C++11) iscntrl isupper islower isalpha	isdigit ispunct isxdigit isalnum isprint isgraph
Conversions
toupper tolower	wstring_convert (C++11) wbuffer_convert (C++11)
Facet category base classes
ctype_base codecvt_base messages_base	time_base money_base
Facet categories
ctype ctype<char> codecvt collate messages time_get time_put	num_get num_put numpunct money_get money_put moneypunct
Locale-specific facets
ctype_byname codecvt_byname messages_byname collate_byname	time_get_byname time_put_byname numpunct_byname moneypunct_byname
Code conversion facets
codecvt_utf8 (C++11) codecvt_utf16 (C++11)	codecvt_utf8_utf16 (C++11) codecvt_mode (C++11)
C locale
setlocale localeconv lconv	LC_ALLLC_COLLATELC_CTYPELC_MONETARYLC_NUMERICLC_TIME

 

std::locale

Member types

locale::id

locale::facet

Member functions

locale::locale

locale::~locale

locale::operator=

locale::combine

locale::name

locale::operator==locale::operator!=

locale::operator()

Static member functions

locale::global

locale::classic

 

Defined in header <locale>
template< class Facet > locale combine( const locale& other ) const;

Constructs a locale object which is a copy of *this except for the facet of type Facet, which is copied from other.

Return value

The new, nameless, locale.

Exceptions

std::runtime_error if other does not implement Facet

Example

Run this code

#include <iostream>
#include <locale>
 
int main()
{
    const double number = 1000.25;
    std::cout << "\"C\" locale: " << number << '\n';
    std::locale loc = std::locale().combine<std::numpunct<char>>(std::locale("en_US.UTF8"));
    std::cout.imbue(loc);
    std::cout << "\"C\" locale with en_US numpunct: " << number << '\n';
}

Output:

"C" locale: 1000.25
"C" locale with en_US numpunct: 1,000.25

See also

(constructor)

constructs a new locale (public member function)