File cannot open with ofstream constructor !

[tornado]

hi all,

This is quite puzzling me why is that ofstream constructor is unable
to open a file for writing while, a ofstream "open" method can ! The
c++ book by Herbert Schildt which i m readin mentions that ofstream
default constructor can open a file. But when i tried to open a file
it failed to open. Then i tried it by open method which succeded.
I m using g++ on Redhat linux.

Any insights will be appreciated.
Thanks in advance.

[Mike Wahler]

Re: File cannot open with ofstream constructor !


tornado <tornado579@yah oo.com> wrote in message
news:c8b0a275.0 307290306.2d357 ad0@posting.goo gle.com...[color=blue]
> hi all,
>
> This is quite puzzling me why is that ofstream constructor is unable
> to open a file for writing while, a ofstream "open" method can ![/color]

Show us your code.
[color=blue]
>The
> c++ book by Herbert Schildt[/color]

See http://snurse-l.org/acllc-c++/faq.html#q6.4
[color=blue]
>which i m readin mentions that ofstream
> default constructor can open a file.[/color]

Did you misread that part, or is this another 'Schildtism'?
Class 'ofstream' does provide a default constructor, but
it certainly does not open a file? Which file would it open?
[color=blue]
> But when i tried to open a file
> it failed to open.[/color]

Show us the code you used, and tell us what indicates
to you the open failed.
[color=blue]
>Then i tried it by open method which succeded.
> I m using g++ on Redhat linux.
>
> Any insights will be appreciated.[/color]

Show us a small, compilable example program which
exhibits the problem behavior, and perhaps we can
help.

-Mike