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basic_ios::copyfmt

basic_ios::copyfmt 

Copies flags from one stream to another.


basic_ios& copyfmt(
   const basic_ios& _Right
);

Parameters

_Right

The stream whose flags you want to copy.

The this object for the stream to which you are copying the flags.

The member function reports the callback event erase_event. It then copies from _Right into *this the fill character, the tie pointer, and the formatting information. Before altering the exception mask, it reports the callback event copyfmt_event. If, after the copy is complete, state & exceptions is nonzero, the function effectively calls clear with the argument rdstate. It returns *this.

// basic_ios_copyfmt.cpp
// compile with: /EHsc
#include <iostream>
#include <fstream>

int main( ) 
{
   using namespace std;
   ofstream x( "test.txt" );
   int i = 10;

   x << showpos;
   cout << i << endl;
   cout.copyfmt( x );
   cout << i << endl;
}

10
+10

Header: <ios>

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