Simply, there is a string, words in it, separated by spaces. How to walk on this line, alternately recorded in the buffer these words. That is, first we write the first word into the buffer, then the second, and so on until the end of this line. Interested in how to do this based on string methods, or in another most rational way.

  • operator>> not suitable? - αλεχολυτ

1 answer 1

Here is a demo program. The "buffer" is the std::vector container.

 #include <iostream> #include <sstream> #include <algorithm> #include <iterator> #include <vector> #include <string> int main() { char s[] = "one two three"; std::cout << s << std::endl; std::vector<std::string> v; std::istringstream is( s ); std::copy( std::istream_iterator<std::string>( is ), std::istream_iterator<std::string>(), std::back_inserter( v ) ); for ( const auto &item : v ) std::cout << item << ' '; std::cout << std::endl; return 0; }

Its output to the console

 one two three one two three

You can replace the declaration of a character array with a declaration of an object of type std::string .

 std::string s( "one two three" );