repeatedly trying to open a file

[Nick Keighley]

Hi!

I feel I must be missing something simple.

I want a program to try and open a file stream. If it fails it allows
the user the
chance to try again.

Usually a file stream is opened in the constructor

void save_file ()
{
do
{
ostream os ("test.dat");

if (!os)
{
if (!try_again())
return;
}
} while (!os)

os << stuff;
}

but os has gone out of scope... Do osteams have an open() method?
I did look in a couple of places...

 

[Pete Becker]

but os has gone out of scope... Do osteams have an open() method?
I did look in a couple of places...

ostreams do not have an open member function - they don't deal with
files. ofstreams, however, do.

--

-- Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com)
Author of "The Standard C++ Library Extensions: a Tutorial and
Reference." (www.petebecker.com/tr1book)