load and save variable

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2 total messages Started by Hakan Venderlof Sun, 05 Sep 1999 00:00

#133

Author: Hakan Venderlof
Date: Sun, 05 Sep 1999 00:00

23 lines
970 bytes

Hello
I would like to load an variable from a file
variable.txt looking like this:

25


and then change the variable in a program and
save the variable to the samefile, eg overwriting the file
to for example

50


How should this be written?

I use Borland c++ 5.02.




--
***  greetings         grok        sweden  ***

Re: load and save variable

#135

Author: Bart and Debbie Crane
Date: Mon, 06 Sep 1999 00:00

25 lines
1173 bytes

If you can read standard input, then sscanf is the easiest for C.  If
it's C++, then if it is Windows, then you might want to be reading and
writing the Registry, or some .ini file?  In which case you should use
the Win32 API.

Hakan Venderlof wrote:

> Hello
> I would like to load an variable from a file
> variable.txt looking like this:
>
> 25
>
> and then change the variable in a program and
> save the variable to the samefile, eg overwriting the file
> to for example
>
> 50
>
> How should this be written?
>
> I use Borland c++ 5.02.
>
> --
> ***  greetings         grok        sweden  ***

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