std::match_results::position
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| difference_type position( size_type sub = 0 ) const; |
(C + + 11以来) | |
指定されたサブマッチの最初の文字の位置を返します.
Original:
Returns the position of the first character of the specified sub-match.
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n == 0場合、全体のマッチした表現の最初の文字の位置が返されます.
Original:
If n == 0, the position of the first character of entire matched expression is returned.
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N番目のサブ一致が返される文字列の最初の文字の位置、n > 0 && n < size()IF.
Original:
If n > 0 && n < size(), the position of the first character of nth sub-match is returned.
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n >= size()場合は、比類のない試合の最初の文字の位置が返されます.
Original:
if n >= size(), a position of the first character of the unmatched match is returned.
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目次 |
[編集] パラメータ
| n | - | 調べるために一致させるかを指定する整数
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. |
[編集] 値を返します
指定された一致またはサブマッチの最初の文字の位置.
Original:
The position of the first character of the specified match or sub-match.
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[編集] 例
#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'; }
Output:
1
[編集] も参照してください
| 指定されたサブマッチが返されます 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. (パブリックメンバ関数) | |
