[Dev-C++] how to use strings

[JS <jsc...@gm...>]

hi, i am trying to convert a simple integer or byte or anything else 
to a string in order to write to a file on disk.

It does not work the way i did it for years with e.g. Microsoft C7.0 
(Win3.1) and Visual C 6.0 (W32) -  dont know why.

a)
How do i convert a number liek eg   int a = -105  to exactly ythis 
string ?


b) Which function would be the best to write and read the correct 
format fomr and to HD-Files ?

I used to apply fprintf with formatted strings to read full lines of a file 
with known structure and directly obtained  the desired variables.

I copied the source code from a DOS prog and DEV C compiles 
but reads only shit !

Sorry for that, but I am going to get upset with this compiler.

Does any body have an example wich directly works in DEV CPP 
to find out where the problem is ?

thanks in progress.
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