fpos::operator!=
Verificare gli indicatori percorso per le disuguaglianze.
bool operator!=(
const fpos<Statetype>& _Right
) const;
Parametri
- _Right
L'indicatore posizione in cui eseguire il confronto.
Valore restituito
true se gli indicatori posizione non sono uguali, in caso contrario false.
Note
La funzione membro restituisce !(*this == _Right).
Esempio
// 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
Requisiti
IOS <diIntestazione: >
Spazio dei nomi: std