Compilation Issue.

[karthik.naig]

Hi,

I am writing code for an Atmega645. I use the IAR compiler (v4.2).
I noticed that this piece of the code was not working. Meaning even if
the if condition evaluated to 0, it did not enter the loop. I am not
sure if I cleaned up all the project files before issuing a build (but
I think I did). But I know I issued a build several time and observed
this problem at all times.


{
if ( !GetMessageCount() )
{
..........do something....

return;
}

....do something else....
return.
}

However, when I changed it to this, it worked.

{
if ( GetMessageCount() == 0)
{
..........do something....

return;
}

....do something else....
return.
}

Further, when I changed it back again, it worked properly !!!

How can you explain that?

Btw, GetMessageCount is defined below.
unsigned char GetMessageCount()
{
return MessageCount;
}

 

[Ian Collins]

Further, when I changed it back again, it worked properly !!!

It looks like you have an issue with your build process, rather than with C.

 

[karthik.naig]

It looks like you have an issue with your build process, rather than with C.

Can you elaborate? What might be going wrong?

 

[Marcin Wolcendorf]

Can you elaborate? What might be going wrong?

Anything, as long as you don't tell what do you do to build.

M.