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std::match_results::str

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< cpp‎ | regex‎ | match results

 
 
Reguläre Ausdrücke Bibliothek
Classes
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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::match_results
Member-Funktionen
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Member functions
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match_results::match_results
match_results::~match_results
match_results::operator=
match_results::get_allocator
State
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State
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match_results::ready
Elementzugriff zerstört
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Element access
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match_results::size
match_results::max_size
match_results::empty
match_results::length
match_results::position
match_results::str
match_results::operator_at
match_results::prefix
match_results::suffix
Iteratoren
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Iterators
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match_results::begin
match_results::cbegin
match_results::end
match_results::cend
Format
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Format
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match_results::format
Modifiers
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Modifiers
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match_results::swap
 
string_type str( size_type n = 0 ) const;
(seit C++11)
Gibt eine Zeichenfolge, die den angegebenen Sub-match .
Original:
Returns a string representing the indicated sub-match.
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Wenn n == 0 ist eine Zeichenfolge, die gesamte abgestimmt Ausdruck zurückgegeben .
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If n == 0, a string representing entire matched expression is returned.
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Wenn n > 0 && n < size() einem String, der n th sub-match zurückgegeben .
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If n > 0 && n < size(), a string representing nth sub-match is returned.
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wenn n >= size() ist eine Zeichenfolge, die die unübertroffene Übereinstimmung zurückgegeben .
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if n >= size(), a string representing the unmatched match is returned.
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Der Aufruf entspricht string_type((*this)[n]);
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The call is equivalent to string_type((*this)[n]);
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Inhaltsverzeichnis

[Bearbeiten] Parameter

n -
ganze Zahl angeben, welche passen, um zurückzukehren
Original:
integral number specifying which match to return
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[Bearbeiten] Rückgabewert

Gibt eine Zeichenfolge, die den angegebenen Streichholz oder sub Spiel .
Original:
Returns a string representing the specified match or sub match.
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[Bearbeiten] Beispiel

#include <iostream>
#include <regex>
#include <string>
 
int main()
{
    std::regex re("a(a)*b");
    std::string target("aaab");
    std::smatch sm;
 
    std::regex_match(target, sm, re);
    std::cout << sm.str(1) << '\n';
}

Output:

aaa

[Bearbeiten] Siehe auch

Renditen angegebenen Sub-passen
Original:
returns specified sub-match
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(öffentliche Elementfunktion) [edit]