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

From: Raphael Assenat
Subject: Re: [avr-gcc-list] possible compiler/optimizer problem (?)
Date: Mon, 30 May 2005 14:08:34 -0400
User-agent: Mozilla Thunderbird 1.0 (X11/20050118)

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

Raphael Assenat

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