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Re: [avr-gcc-list] global variables

From: Curtis Maloney
Subject: Re: [avr-gcc-list] global variables
Date: Mon, 22 Aug 2005 09:43:49 +1000
User-agent: Debian Thunderbird 1.0.6 (X11/20050802)

Tomas Krcka wrote:
   I have a problem with global variables in my project.
The problem is:

I'm not sure why you felt the need to post this 3 times, but...

I have file system.c
       byte proc_tbl[MAX_PROCESS];  //it's global variable in system.c
       void System_Init(void){
          int i;
           for (i = 0;i < MAX_PROCESS; i++)
             proc_tbl[i] = NOT_USED;

I'm going to assume you have something like "typedef unsigned char byte;" 

What's more important is what is "NOT_USED" defined as?

If it's outside the range of a byte you'll never get a true on the comparison. If you don't have the right -W switches passed to the compiler, it won't warn you about them, either.

Curtis Maloney

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