table of contents
std::regex_traits::translate_nocase(3) | C++ Standard Libary | std::regex_traits::translate_nocase(3) |
NAME¶
std::regex_traits::translate_nocase - std::regex_traits::translate_nocase
Synopsis¶
CharT translate_nocase( CharT c ) const;
Obtains the comparison key for the character c, such that all characters that
are
equivalent to this character in the imbued locale, ignoring the case
differences, if
any, produce the same key.
When the regex library needs to match two characters c1 and c2 and the flag
std::regex_constants::icase is true, it executes
regex_traits<>::translate_nocase(c1) ==
regex_traits<>::translate_nocase(c2).
Standard library specializations of std::regex_traits return
std::use_facet<std::ctype<CharT>>(getloc()).tolower(c), that is,
convert c to
lowercase, using the currently imbued locale.
Parameters¶
c - character that needs to be examined for equivalence, ignoring case
Return value¶
The case-insensitive comparison key for c in the currently imbued locale.
Example¶
This section is incomplete
Reason: no example
Category:¶
* Todo no example
2024.06.10 | http://cppreference.com |