public member function

std::ctype::ctype

generic (1)	explicit ctype (size_t refs = 0); // generic ctype constructor
char specialization (2)	explicit ctype (const mask* tab = 0, // constructor for ctype<char> bool del = false, size_t refs = 0);

ctype constructor

Constructs a ctype facet object.

(1) generic constructor (only for non-char instantiations): Calls the constructor of its base class locale::facet.
(2) char specialization (only for ctype<char>): The char specialization of ctype takes additional arguments to allow for optional custom character tables, and also calls the constructor of its base class locale::facet.

Parameters

tab

Pointer to an array containing a table with the classification of each of the characters in the character set (as if returned by the array version of ctype::is). Or a null pointer, if the classic table (a predefined table) is to be used.
ctype::mask is a bitmask member type.

del

If true, the destructor will automatically delete the table passed as first argument, so that the program needs not to care about the facet's lifetime.

refs