fstream question

[Dan M]

When you specify the file for an fstream inside your code, do you refer
directly to the files location?

e.g. c:\file

or do you just place the file to be read in the same folder as the .cpp
file?

I'm trying to read in some data in a file and the resources I have looked at
do not give me this information.

Thank you so much

Dan M

[Karl Heinz Buchegger]

Re: fstream question

Dan M wrote:[color=blue]
>
> When you specify the file for an fstream inside your code, do you refer
> directly to the files location?
>
> e.g. c:\file
>
> or do you just place the file to be read in the same folder as the .cpp
> file?
>[/color]

Depends on the file content.
If it is some vital and relatively constant information, such as eg. some
program settings, I use argv[0] to determine the path to the executable
(if argv[0] provides this, there is no guarantee for that) and use that
path to build the complete filename.

If the file contains user data, I let the user specify which file he wants
to process. Most operating systems provide a way to have some sort of
utilities directory, where programs can be started easily from. The
users data file needs not to reside on this directory.

--
Karl Heinz Buchegger
kbuchegg@gascad .at

[lallous]

Re: fstream question

Hello
[color=blue]
> When you specify the file for an fstream inside your code, do you refer
> directly to the files location?
>
> e.g. c:\file
>
> or do you just place the file to be read in the same folder as the .cpp
> file?
>
> I'm trying to read in some data in a file and the resources I have looked
> at do not give me this information.
>
> Thank you so much
>[/color]

You can refer to the file either in a relative manner or absolute manner,
either method works.
If you want your code to work, it is better to address files in a relative
manner, either relatively to the current directory or some directory one
level above it, such as: ./prog.exe and ./data./*.txt (your data files).

Regards,
Elias

[Sumit Rajan]

Re: fstream question

Dan M wrote:[color=blue]
> When you specify the file for an fstream inside your code, do you refer
> directly to the files location?
>
> e.g. c:\file
>
> or do you just place the file to be read in the same folder as the .cpp
> file?
>
> I'm trying to read in some data in a file and the resources I have looked at
> do not give me this information.[/color]

You may like to read this:

http://www.parashift.com/c++-faq-lite/input-output.html#faq-15.16

Regards,
Sumit.
--
Sumit Rajan <sumit DOT rajan AT gmail DOT com>