C++ Locale Library - ctype

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Description

It is a character type facet and the ctype standard facet classifies and transforms characters, adapting the functionality of the C library header <cctype> to C++ locales.

Declaration

Following is the declaration for std::locale::ctype.

C++98

	
template <class charT> class ctype;

C++11

template <class charT> class ctype;

Parameters

charT − It is a char type.

Public member functions

Sr.No.	Member function & description
1	(constructor) It is a locale constructor.

Character classifications

Sr.No.	Character classification & description
1	is It is a classify characters.
2	scan_is It returns first character in category.
3	scan_not It returns first character not in category.

Virtual protected member function

Sr.No.	Virtual protected member function & description
1	toupper It converts to uppercase.
2	tolower It converts to lowercase.
3	widen It is used in widen characters.
4	narrow It is used in narrow characters.