Localization library

The locale facility includes internationalization support for character classification and string collation, numeric, monetary, and date/time formatting and parsing, and message retrieval. Locale settings control the behavior of stream I/O, regular expression library, and other components of the C++ standard library.

Locales

Template:cpp/locale/dcl list isspace

Defined in header <locale>
Locales and facets
locale	polymorphic set of facets that comprise a locale (class)
use_facet	obtains a facet from a locale (function template)
has_facet	checks if a locale implements a specific facet (function template)
Character classification
iscntrl	checks if a character is classified as a control character by a locale (function template)
isupper	checks if a character is classified as uppercase by a locale (function template)
islower	checks if a character is classified as lowercase by a locale (function template)
isalpha	checks if a character is classified as alphabetic by a locale (function template)
isdigit	checks if a character is classified as a digit by a locale (function template)
ispunct	checks if a character is classified as punctuation by a locale (function template)
isxdigit	checks if a character is classified as a hexadecimal digit by a locale (function template)
isalnum	checks if a character is classified as alphanumeric by a locale (function template)
isprint	checks if a character is classified as printable, including space, by a locale (function template)
isgraph	checks if a character is classfied as printable, excluding space, by a locale (function template)
Character conversions
toupper	converts a character to uppercase using the ctype facet of a locale (function template)
tolower	converts a character to lowercase using the ctype facet of a locale (function template)
String and stream conversions
wstring_convert (C++11)	performs conversions between a wide string and a byte string (class template)
wbuffer_convert (C++11)	performs conversion between a byte stream buffer and a wide stream buffer (class template)
Facet categories
ctype	defines character classification tables (class template)
ctype<char>	specialization of Template:cpp for type Template:cpp (class template specialization)
codecvt	converts between character encodings, including multibyte and wide (class template)
collate	defines lexicographical comparison and hashing of strings (class template)
messages	implements retrieval of strings from message catalogs (class template)
time_get	parses time/date values from an input character sequence into Template:cpp (class template)
time_put	formats contents of Template:cpp for output as character sequence (class template)
num_get	parses numeric values from an input character sequence (class template)
num_put	formats numeric values for output as character sequence (class template)
numpunct	defines numeric punctuation rules (class template)
money_get	parses and constructs a monetary value from an input character sequence (class template)
money_put	formats a monetary value for output as a character sequence (class template)
moneypunct	defines monetary formatting parameters used by Template:cpp and Template:cpp (class template)
Locale-specific facet categories
ctype_byname	extends Template:cpp for the specified locale (class template)
ctype_byname<char>	extends Template:cpp for the specified locale (class template specialization)
codecvt_byname	extends Template:cpp for the specified locale (class template)
messages_byname	extends Template:cpp for the specified locale (class template)
collate_byname	extends Template:cpp for the specified locale (class template)
time_get_byname	extends Template:cpp for the specified locale (class template)
time_put_byname	extends Template:cpp for the specified locale (class template)
numpunct_byname	extends Template:cpp for the specified locale (class template)
moneypunct_byname	extends Template:cpp for the specified locale (class template)

Standard code conversion facets

Defined in header <codecvt>
codecvt_utf8 (C++11)	converts between UTF8 and UCS2/UCS4 (class template)
codecvt_utf16 (C++11)	converts between UTF16 and UCS2/UCS4 (class template)
codecvt_utf8_utf16 (C++11)	converts between UTF8 and UTF16 (class template)
codecvt_mode (C++11)	tags to alter behavior of the standard codecvt facets (class)

C library locales

Template:cpp/locale/dcl list setlocale

Defined in header <clocale>
LC_ALL	full locale category for Template:cpp (macro constant)
LC_COLLATE	string comparison locale category for Template:cpp (macro constant)
LC_CTYPE	character classification locale category for Template:cpp (macro constant)
LC_MONETARY	monetary formatting locale category for Template:cpp (macro constant)
LC_NUMERIC	nonmonetary numeric formatting locale category for Template:cpp (macro constant)
LC_TIME	time formatting locale category for Template:cpp (macro constant)
localeconv	queries numeric and monetary formatting details of the current locale (function)
lconv	formatting details, returned by Template:cpp (class)