fpos::operator!=

Tests file-position indicators for inequality.

bool operator!=(
      const fpos<Statetype>& _Right
) const;

Parameters

_Right
The file-position indicator against which to compare.

Return Value

true if the file-position indicators are not equal, otherwise false.

Remarks

The member function returns !(*this == _Right).

Example

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

int main( )
{
   using namespace std;

   fpos<int> pos1, pos2;
   ifstream file;
   char c;

   // Compare two fpos object
   if ( pos1 != pos2 )
      cout << "File position pos1 and pos2 are not equal" << endl;
   else
      cout << "File position pos1 and pos2 are equal" << endl;

   file.open( "fpos_op_neq.txt" );
   file.seekg( 0 );   // Goes to a zero-based position in the file
   pos1 = file.tellg( );
   file.get( c);
   cout << c << endl;

   // Increment pos1
   pos1 += 1;
   file.get( c );
   cout << c << endl;

   pos1 = file.tellg( ) - fpos<int>( 2);
   file.seekg( pos1 );
   file.get( c );
   cout << c << endl;

   // Increment pos1
   pos1 = pos1 + fpos<int>( 1 );
   file.get(c);
   cout << c << endl;

   pos1 -= fpos<int>( 2 );
   file.seekg( pos1 );
   file.get( c );
   cout << c << endl;

   file.close( );
}

Input: fpos_op_neq.txt

987654321

Output

File position pos1 and pos2 are equal
9
8
9
8
8

Requirements

Header: <ios>

Namespace: std