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    std::match_results::operator[]

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    <metanoindex/>

     
    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::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
     
    <tbody> </tbody>
    const_reference operator[]( size_type n ) const;
    		 (seit C++11)
    Gibt eine angegebene Sub-match .
    Original:
    Returns an indicated sub-match.
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    Wenn n == 0 wird gesamte abgestimmt Ausdruck zurückgegeben .
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    If n == 0, entire matched expression is returned.
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    Wenn n > 0 && n < size(), n th sub-match zurückgegeben .
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    If n > 0 && n < size(), nth sub-match is returned.
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    wenn n >= size() wird ein Sub-Spiel, das die unübertroffene Übereinstimmung zurückgegeben .
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    if n >= size(), a sub-match representing the unmatched match is returned.
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    Parameter

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

    Gibt ein Sub-Match, das die angegebene Spiel oder sub Spiel .
    Original:
    Returns a sub-match representing the specified match or sub match.
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    Beispiel

    #include <iostream>
#include <regex>
#include <string>

int main()
{
    std::regex re("a(a)*b");
    std::string target("baaaby");
    std::smatch sm;

    std::regex_search(target, sm, re);
    std::cout << sm[1] << '\n';
}

    Output: 

    aa

    Siehe auch
    kehrt die Reihenfolge der Zeichen für die jeweilige Sub-Match
    Original:
    returns the sequence of characters for the particular sub-match
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    (öffentliche Elementfunktion) [edit]