std::match_results::position

 

C++

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Понятия (концепции)

Утилиты

Строки

Контейнеры

Алгоритмы

Итераторы

Работа с числами

Ввод / вывод

Локализация

Регулярные выражения (C++11)

Атомарные примитивы (C++11)

Потоки (C++11)

 

Библиотеки регулярных выражений

Классы Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_regex (C++11)

sub_match (C++11)

match_results (C++11)

Алгоритмы Original: Algorithms The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_match (C++11)

regex_search (C++11)

regex_replace (C++11)

Итераторы Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_iterator (C++11)

regex_token_iterator (C++11)

Исключения Original: Exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_error (C++11)

Черты Original: Traits The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_traits (C++11)

Константы Original: Constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

syntax_option_type (C++11)

match_flag_type (C++11)

error_type (C++11)

 

std::match_results

Член функций Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

match_results::match_results

match_results::~match_results

match_results::operator=

match_results::get_allocator

Государство Original: State The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

match_results::ready

Элемент доступа Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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

Итераторы Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

match_results::begin match_results::cbegin

match_results::end match_results::cend

Формат Original: Format The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

match_results::format

Модификаторы Original: Modifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

match_results::swap

 

difference_type position( size_type sub = 0 ) const;		(начиная с C++11)

Возвращает позицию первого символа указанного суб-матч.

Original:

Returns the position of the first character of the specified sub-match.

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Если n == 0, позиция первого символа всего соответствует выражению возвращается.

Original:

If n == 0, the position of the first character of entire matched expression is returned.

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Если n > 0 && n < size(), позиция первого символа N-й суб-матч возвращается.

Original:

If n > 0 && n < size(), the position of the first character of nth sub-match is returned.

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если n >= size(), позиция первого символа непревзойденной матча возвращается.

Original:

if n >= size(), a position of the first character of the unmatched match is returned.

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Параметры

n

-

целое число указания, которые соответствуют изучить Original: integral number specifying which match to examine The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Возвращаемое значение

Позиция первого символа указанного матча или суб-матч.

Original:

The position of the first character of the specified match or sub-match.

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Пример

#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.position(1) << '\n';
}

Вывод:

1

См. также

operator[]	возврат указанных суб-совпадают Original: returns specified sub-match The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public функция-член)