Defined in header <locale> | ||
|---|---|---|
template<> class ctype_byname : public std::ctype<char>; |
This specialization of std::ctype_byname encapsulates character classification features for type char. Like its base class std::ctype<char> and unlike general-purpose std::ctype_byname, table lookup is used to classify characters.
| Member type | Definition |
|---|---|
mask | ctype<char>::mask |
| (constructor) | constructs a new ctype_byname<char> facet (public member function) |
| (destructor) | destructs a ctype_byname<char> facet (protected member function) |
| Member type | Definition |
|---|---|
char_type | char |
| Member name | Type |
|---|---|
id (static) | std::locale::id |
table_size (static const) | std::size_t size of the classification table, at least 256 |
| obtains the character classification table (public member function of std::ctype<char>) |
|
|
[static] | obtains the "C" locale character classification table (public static member function of std::ctype<char>) |
| classifies a character or a character sequence, using the classification table (public member function of std::ctype<char>) |
|
| locates the first character in a sequence that conforms to given classification, using the classification table (public member function of std::ctype<char>) |
|
| locates the first character in a sequence that fails given classification, using the classification table (public member function of std::ctype<char>) |
|
invokes do_toupper (public member function of std::ctype) |
|
invokes do_tolower (public member function of std::ctype) |
|
invokes do_widen (public member function of std::ctype) |
|
invokes do_narrow (public member function of std::ctype) |
|
[virtual] | converts a character or characters to uppercase (virtual protected member function of std::ctype) |
|
[virtual] | converts a character or characters to lowercase (virtual protected member function of std::ctype) |
|
[virtual] | converts a character or characters from char to charT (virtual protected member function of std::ctype) |
|
[virtual] | converts a character or characters from charT to char (virtual protected member function of std::ctype) |
| Type | Definition |
|---|---|
mask | unspecified bitmask type (enumeration, integer type, or bitset) |
| space
[static] | the value of mask identifying whitespace character classification (public static member constant) |
| print
[static] | the value of mask identifying printable character classification (public static member constant) |
| cntrl
[static] | the value of mask identifying control character classification (public static member constant) |
| upper
[static] | the value of mask identifying uppercase character classification (public static member constant) |
| lower
[static] | the value of mask identifying lowercase character classification (public static member constant) |
| alpha
[static] | the value of mask identifying alphabetic character classification (public static member constant) |
| digit
[static] | the value of mask identifying digit character classification (public static member constant) |
| punct
[static] | the value of mask identifying punctuation character classification (public static member constant) |
| xdigit
[static] | the value of mask identifying hexadecimal digit character classification (public static member constant) |
| blank
[static] (C++11) | the value of mask identifying blank character classification (public static member constant) |
| alnum
[static] | alpha | digit (public static member constant) |
| graph
[static] | alnum | punct (public static member constant) |
#include <iostream>
#include <locale>
int main()
{
char c = '\xde'; // capital letter thorn
std::locale loc("C");
std::cout << "isupper('Þ', C locale) returned "
<< std::boolalpha << std::isupper(c, loc) << '\n';
loc = std::locale(loc, new std::ctype_byname<char>("en_US.utf8"));
std::cout << "isupper('Þ', C locale with Unicode ctype<char>) returned "
<< std::boolalpha << std::isupper(c, loc) << '\n';
loc = std::locale(loc, new std::ctype_byname<char>("is_IS.iso88591"));
std::cout << "isupper('Þ', C locale with Islandic ctype<char>) returned "
<< std::boolalpha << std::isupper(c, loc) << '\n';
}Output:
isupper('Þ', C locale) returned false
isupper('Þ', C locale with Unicode ctype<char>) returned false
isupper('Þ', C locale with Islandic ctype<char>) returned true| defines character classification tables (class template) |
|
specialization of std::ctype for type char (class template specialization) |
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