what does asm("r2") means?

This means that variable MyVarName will be always stored in the register r2.

http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_regbind

Hi, the code has the format:

AAA BBB CCC ();

And it will recognized as a global function. Not sure why it became a global variable. I just start a thread:

http://forums.codeblocks.org/index.php/topic,15930.msg107310.html#msg107310

Regard to your bug report, I think the best way is to define a custom replacement rule(like a macro definition)

The replacement rule should be:

asm( ) ---> NONE

So, that you code can looks like:

register uint8_t MyVarName;

And this string has the format

AAA BBB CCC;

Now, the CCC part will be recognized as a global variable.

The pity is currently we don't have such replacement rule, but it is put in my TODO list.

Luckily, you can use a replacement rule:

asm ----> NONE

This will change your code in the parser internally like (strip the "asm"):

register uint8_t MyVarName ("r2");

And now, it works OK as you expect.

Thanks for idea but I don`t understand why this string should be interpreted as a variable definition, not function definition?

Because to the function definition can`t be passed string instead of argument?

Answer1: In-fact, as in c/c++, a syntax parser can't disambiguate the variable definition and function declaration. It need a more semantic analysis.

http://en.wikipedia.org/wiki/Semantic_analysis_%28compilers%29#Front_end

But as you know, parser in CC is quite limited, and we only have some kind of syntax analysis, because writing a full semantic parser is a too complex. (you can take gcc's source code for example).

Answer2: Function declaration should not have a single string in the parentheses, This is true. So from a syntax point of view:

AAA BBB CCC("ddd");

should not be a function declaration. So, we can further add this check, but Note: This is still not sufficient enough, because there are many special case like this.

Update, When we have such code:

AAA BBB CCC("xxxx");

It should be recognized as a variable, because the arguments "xxxx" can not be used in a function declaration.

See:

http://forums.codeblocks.org/index.php/topic,15930.msg107334.html#msg107334