seek() function

[berkay]

hi all,for example there is a text file and in this file 'pencil' is
written if part of the program is like that:

ifstream fin("pen.txt");//in this file pencil is written

char c;
fin.get(c);
cout<<c;//output is p

c=fin.peek();
cout<<c;//output is e

c=fin.peek();
cout<<c;//output is still e

at the second seek function why is the value of c doesnt change to n?

[Dave Rahardja]

On 14 Sep 2005 18:16:28 -0700, "berkay" <be**********@gmail.com> wrote:

hi all,for example there is a text file and in this file 'pencil' is
written if part of the program is like that:

ifstream fin("pen.txt");//in this file pencil is written

char c;
fin.get(c);
cout<<c;//output is p

c=fin.peek();
cout<<c;//output is e

c=fin.peek();
cout<<c;//output is still e

at the second seek function why is the value of c doesnt change to n?

Because peek() doesn't advance the file position (i.e. "cursor" into the
file).

[berkay]

so does it mean that number of the fundtions is not important?

[Jim Langston]

"berkay" <be**********@gmail.com> wrote in message
news:11**********************@o13g2000cwo.googlegr oups.com...

so does it mean that number of the fundtions is not important?

peek() is specifically to "peek" at the next character without changing the
file pointer.

You could call peek a million times in a row, and it wouldnt' change where
the file pointer was pointing to. That's what it was designed for.

[berkay]

ok i think i understood,thanks