home | help 
std::strstream::pcount(3)      C++ Standard Libary     std::strstream::pcount(3)

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

Synopsis
	int pcount() const;  (deprecated in C++98)
			     (removed in C++26)

	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 <iostream>
      #include <strstream>

      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 out-
     put sequence:
	pcount the number of characters written
	       (public member function of std::strstreambuf)

http://cppreference.com 	   2024.06.10	       std::strstream::pcount(3)
home | help