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Date: Sat, 04 May 2002 14:04:32 +0200
To: djgpp AT delorie DOT com
From: Martin Steuer <martinSteuer AT gmx DOT de>
Subject: Can double negations get optimized out?
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Reply-To: djgpp AT delorie DOT com

For example:

[...]
int a,b;
scanf("%d",&a);
b = !!a;
[...]

I want to be sure that b can only be 1 or 0. Do i have to worry that this 
is optimized out by a compiler? In my opinion i dont think so...

Thanks in advance for the info