Re: [avr-gcc-list] possible compiler/optimizer problem (?)

[Raphael Assenat]

Gary Douglas wrote:
> Hi all,
>
> Not sure if this is a bug, or if what I'm trying to do is just incorrect 
> C syntax.  Regardless, the compiler doesn't warn about the following:
>
> void led_blinky()
> {
>     static uint8_t value= 1;
>     value != value;//This is the problem line - always true   
This line does nothing. != is a boolean operator.

If you add the -Wall argument when compiling, gcc will give a warning: 
statement with no effect

Regards,
Raphael Assenat