Re: [avr-chat] "#pragma reentrant" no effect in avr-GCC ?

[Tobias Drößler]

Julius Luukko schrieb:
> On Thursday 02 October 2008, Tobias Drößler wrote:
>   
> > Hey,
> >
> > my question is in the subject-line ...
> >
> > i try to understand  some  c-sources ...
> >
> >
> >
> > i read that this line  in "genearal" c (compiler depended)  means that
> > the function(s)  can be re-entered while it is already running.
> > but compiled with the avr-gcc -- there is no effect in the programcode,
> > or is that wrong?
> >
> >     
>
> Hello,
>
> Sorry, this does not answer to your question at all, but here goes:
>
> Reentrancy is not, in my opinion, something that the compiler should be made 
> responsible for. In general, a function is reentrant if it
>
> 1. does not use shared resources (data, hardware) in a nonatomic way
> 2. does not call any functions that are nonreentrant.
>
> What exactly does that pragma do in the compiler that your code is made for? 
> Does it disable interrupts during the whole execution of the function?
>
>   
i don't know  for which compiler the  the code is written ...

but in the avr-gcc manual  there is nothing about it ... so i think the 
line will not affect  the program