std::strstream::pcount (3) - Linux Man Pages

std::strstream::pcount: std::strstream::pcount

NAME

std::strstream::pcount - std::strstream::pcount

Synopsis


int pcount() const;


Returns the number of characters that were output in the put area of the associated std::strstreambuf. Effectively calls rdbuf()->pcount()

Parameters


(none)

Return value


The number of characters in the put area, or zero if nothing was output.

Example


// Run this code


  #include <strstream>
  #include <iostream>


  int main()
  {
      std::strstream dyn; // dynamically-allocated output buffer
      dyn << "Test: " << 1.23 << std::ends;
      std::cout << "The size of the output is " << dyn.pcount()
                << " and it holds \"" << dyn.str() << "\"\n";
      dyn.freeze(false);


      char buf[10];
      std::strstream user(buf, 10); // user-provided output buffer
      user << 1.23; // note: no std::ends
      std::cout.write(buf, user.pcount());
      std::cout << '\n';
  }

Output:


  The size of the output is 11 and it holds "Test: 1.23"
  1.23

See also


       returns the next pointer minus the beginning pointer in the output sequence: the number of characters written
pcount (public member function of std::strstreambuf)