RE: [Dev-C++] Global variables (linking errors)

[Santiago P. C. <San...@yd...>]

Hi Daniel,

Avoid the use of global variables!!!

Define the variable in the "main file" and pass it through
pointers/references to functions located in other code files.

It will be better if you do the same in the "main file", let's say: define
the variable inside the main function and pass it to functions as a
pointer/reference, you'll never worry again about where the child function
code is: in the same file or in another file.

Again: avoid the use of global variables!!!

Hope this helps!
Regards, Santy

PS: If I remember well there is something you can do with 'extern' reserved
word, but this is something I do not use, maybe someone else can give you
more help... Sorry


-----Original Message-----
From: Daniel Glenfield [mailto:sp...@ho...] 
Sent: Thursday, April 18, 2002 6:13 PM
To: dev...@li...
Subject: [Dev-C++] Global variables (linking errors)


Help me out here would you? I have three C++ source files, each with its own

header file. I want to have a global variable that all three source files 
can use.
But when I put the variable into one of the header files I get Linker 
Errors, telling me the variable has already been defined in the first of my 
source code files.

I think it's to do with the header files, but I'm not sure.

Can anyone help?

Daniel

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