Movatterモバイル変換


[0]ホーム

URL:


cppreference.com
Namespaces
Variants
    Actions

      std::regex_traits<CharT>::length

      From cppreference.com
      <cpp‎ |regex‎ |regex traits
       
       
       
      Regular expressions library
      Classes
      (C++11)
      Algorithms
      Iterators
      Exceptions
      Traits
      Constants
      (C++11)
      Regex Grammar
       
       
      staticstd::size_t length(const char_type* p);

      Calculates the length of a null-terminated character sequence, that is, the smallesti such thatp[i]==0.

      Standard library specializations ofstd::regex_traits executestd::char_traits<CharT>::length(p);.

      [edit]Parameters

      p - pointer to the first element of the null-terminated character sequence

      [edit]Return value

      The length of the null-terminated character string.

      [edit]Example

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

      Output:

      105
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/regex/regex_traits/length&oldid=161050"

      [8]ページ先頭

      ©2009-2025 Movatter.jp