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      std::basic_string<CharT,Traits,Allocator>::assign_range

      From cppreference.com
      <cpp‎ |string‎ |basic string
       
       
       
      std::basic_string
       
      template<container-compatible-range<CharT> R>
      constexprstd::basic_string& assign_range( R&& rg);
      (since C++23)

      Replaces the contents of the string with the values in the rangerg.

      Equivalent to

      return assign(std::basic_string(std::from_range,        std​::​forward<R>(rg),        get_allocator()));

      Contents

      [edit]Parameters

      rg - acontainer compatible range

      [edit]Return value

      *this

      [edit]Complexity

      Linear in size ofrg.

      [edit]Exceptions

      If the operation would causesize() to exceedmax_size(), throwsstd::length_error.

      If an exception is thrown for any reason, this function has no effect (strong exception safety guarantee).

      [edit]Notes

      Feature-test macroValueStdFeature
      __cpp_lib_containers_ranges202202L(C++23)member functions that acceptcontainer compatible range

      [edit]Example

      Run this code
      #include <cassert>#include <string> int main(){constauto source={'s','o','u','r','c','e'};std::string destination{"destination"}; #ifdef __cpp_lib_containers_ranges    destination.assign_range(source);#else    destination.assign(source.begin(), source.end());#endif assert(destination=="source");}

      [edit]See also

      assign characters to a string
      (public member function)[edit]
      assigns values to the string
      (public member function)[edit]
      constructs abasic_string
      (public member function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/assign_range&oldid=161643"

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