protected virtual member function
<locale>
std::ctype::do_is
| single character (1) | bool do_is (mask m, char_type c) const; |
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| sequence (2) | const char_type* do_is (const char_type* low, const char_type* high, mask* vec) const; |
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Classify characters [virtual]
Virtual protected member function called by ctype::is to classify characters.
Polymorphic derived classes can overwrite the behavior of this function.
See ctype::is for its default behavior in ctype.
The char specialization of ctype (ctype<char>) does not have this member, as its member ctype<char>::is returns its results directly.
See also
- ctype::is
- Classify characters (public member function)