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std::regex_traits::length

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< cpp‎ | regex‎ | regex traits

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C++
 
Reguläre Ausdrücke Bibliothek
Classes
Original:
Classes
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basic_regex(C++11)
sub_match(C++11)
match_results(C++11)
Algorithmen
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Algorithms
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regex_match(C++11)
regex_search(C++11)
regex_replace(C++11)
Iteratoren
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Iterators
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regex_iterator(C++11)
regex_token_iterator(C++11)
Ausnahmen
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Exceptions
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regex_error(C++11)
Traits
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Traits
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regex_traits(C++11)
Konstanten
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Constants
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syntax_option_type(C++11)
match_flag_type(C++11)
error_type(C++11)
 
std::regex_traits
 
static std::size_t length(const char_type* p);
Berechnet die Länge eines Null-terminierte Zeichenfolge, das heißt, die kleinste i so dass p[i]==0 .
Original:
Calculates the length of a null-terminated character sequence, that is, the smallest i such that p[i]==0.
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Standard-Bibliothek Spezialisierungen std::regex_traits std::char_traits<CharT>::length(p); auszuführen. ...
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Standard library specializations of std::regex_traits execute std::char_traits<CharT>::length(p);
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[Bearbeiten] Parameter

p -
Zeiger auf das erste Element des null-terminierte Zeichenfolge
Original:
pointer to the first element of the null-terminated character sequence
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[Bearbeiten] Rückgabewert

Die Länge des null-terminierte Zeichenkette .
Original:
The length of the null-terminated character string.
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[Bearbeiten] Beispiel

#include <regex>
#include <iostream>
 
int main()
{
    std::cout << std::regex_traits<char>::length(u8"Кошка") << '\n'
              << std::regex_traits<wchar_t>::length(L"Кошка") << '\n';
}

Output: 

10
5
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/regex/regex_traits/length&oldid=27797“