ios& copyfmt ( const ios& rhs );

Copy formatting information

Copies the values of all the internal members of the object rhs (except the state flags and the stream buffer pointer) to the corresponding members of *this. This includes the format flags, the fill character, the tie pointer and all formatting information. Every external object pointed in rhs is copied to a newly constructed object for *this.

The exception mask is the last to be copied.

Before copying any parts of rhs, this member function triggers an erase_event event which invokes the registered callback functions, if any (see ios_base::register_callback).

Parameters

rhs

Object whose members are to be copied to *this

Return Value

Example

// copying formatting information
#include <iostream>
#include <fstream>
using namespace std;

int main () {

  ofstream filestr;
  filestr.open ("test.txt");

  cout.fill ('*');
  cout.width (10);
  filestr.copyfmt (cout);

  cout << 40;
  filestr << 40;

  return 0;
}

This example outputs a number formatted in the same way in both cout and filestr:

********40

Basic template member declaration

basic_ios& copyfmt (const basic_ios& rhs );

See also