X-Authentication-Warning:	delorie.com: mailnull set sender to djgpp-bounces using -f
Message-ID:	<20020505031439.44308.qmail@web11304.mail.yahoo.com>
Date:	Sat, 4 May 2002 20:14:39 -0700 (PDT)
From:	PEDRO IZECKSOHN <izecksohn AT yahoo DOT com>
Subject:	Re: Can double negations get optimized out?
To:	djgpp AT delorie DOT com
In-Reply-To:	<200205041634.g44GYOT31374@delorie.com>
MIME-Version:	1.0
Reply-To:	djgpp AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
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   Sorry if I'm a stupid, but I can't understand the
effects of the suggestions of Martin, Eli, && the first
suggestion of DJ. Bellow are the full codes that I made for
testing them. Maybe that people are writing and sending,
like I myself do sometimes, without testing the code
before?

#include <stdio.h>
int main () {
int a,b;
//...
while (1) {
scanf("%d",&a);
b = !!a;
printf("%d",a);
printf("%s","
");
} // Ends while.
//...
return 0;
}

#include <stdio.h>
int main () {
int a,b;
//...
while (1) {
scanf("%d",&a);
b = a != 0;
printf("%d",a);
printf("%s","
");
} // Ends while.
//...
return 0;
}

#include <stdio.h>
int main () {
int a,b;
//...
while (1) {
scanf("%d",&a);
b = a ? 1 : 0;
printf("%d",a);
printf("%s","
");
} // Ends while.
//...
return 0;
}


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