protected virtual member function
<locale>
std::ctype::do_toupper
| single character (1) | char_type do_toupper (char_type c) const; |
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| sequence (2) | const char_type* do_toupper (char_type* low, const char_type* high) const; |
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Convert to uppercase [virtual]
Virtual protected member function called by ctype::toupper to transform characters into uppercase.
Polymorphic derived classes can overwrite the behavior of this function.
See ctype::toupper for its default behavior in ctype.