From: Richard Harvey Chapman <hchapman-gcc-help@3gfp.com>
To: gcc <gcc-help@gcc.gnu.org>
Subject: Re: regarding type promotion
Date: Tue, 19 Aug 2008 22:36:00 -0000 [thread overview]
Message-ID: <48AB43D7.8070701@3gfp.com> (raw)
In-Reply-To: <m37iad7xja.fsf@google.com>
I should have included the program source.
H.
hchapman@anthrax:~$ cat a.c
#include <stdio.h>
int main()
{
unsigned int value = 1;
#define BITSET 0x1234
// Wrong: always true if value is odd since BITSET == BITSET is
evaluated first
if (value & BITSET == BITSET)
{
printf("One\n");
}
// Right:
if ((value & BITSET) == BITSET)
{
printf("Two\n");
}
return(0);
}
next prev parent reply other threads:[~2008-08-19 22:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-19 8:38 Sivaprasad.pv
2008-08-19 13:24 ` Andrew Haley
2008-08-19 15:35 ` Eljay Love-Jensen
2008-08-19 16:33 ` Bob Plantz
2008-08-19 16:34 ` Richard Harvey Chapman
2008-08-19 17:02 ` Ian Lance Taylor
2008-08-19 22:07 ` Richard Harvey Chapman
2008-08-20 2:28 ` Ian Lance Taylor
2008-08-19 22:36 ` Richard Harvey Chapman [this message]
2008-08-19 16:45 ` Richard Harvey Chapman
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