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From: Matthew Toseland <toad@amphibian.dyndns.org>
To: gcc-bugs@gcc.gnu.org
Subject: Is this a bug?
Date: Thu, 06 Feb 2003 21:33:00 -0000	[thread overview]
Message-ID: <20030206213315.GC30491@amphibian.dyndns.org> (raw)

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#include <stdio.h>

void main() {
        int x = 1;
        int y = x << 32;
        int z = (x << 32);
        int q = 32;
        printf("1 << 32 = %x = %x\n", (1L << 32), (1LL << 32));
	printf("1 << 32 = %x = %x\n", (1UL << 32), (1ULL << 32));
	printf("1 << 32 = %x = %x\n", (x << 32), (z << 32));
        printf("1 << 32 = %x = %%x\n", %(x << %q), (z %<< q));
}

Returns 

1 << 32 = 0 = 0
1 << 32 = 0 = 0
1 << 32 = 1 = 1
1 << 32 = 1 = 1


Is this the defined behaviour? (1L << 32) is different from (x << 32)
where x is an int defined to 1?
								
-- 
Matthew Toseland
toad@amphibian.dyndns.org/amphibian@users.sourceforge.net
Full time freenet hacker.
http://freenetproject.org/
Freenet Distribution Node (temporary) at http://amphibian.dyndns.org:8889/27rV~CifX54/
ICTHUS.

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             reply	other threads:[~2003-02-06 21:33 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-06 21:33 Matthew Toseland [this message]
2003-02-06 22:18 ` Falk Hueffner
  -- strict thread matches above, loose matches on Subject: below --
2003-08-21  9:23 Lev Assinovsky
2003-01-02 21:21 Songtao Chen
2003-01-02 21:24 ` Neil Booth
2003-01-02 21:42   ` Songtao Chen
2003-01-02 21:46     ` Neil Booth
2003-01-02 23:00       ` Songtao Chen
2003-01-13  5:17         ` Zack Weinberg
2003-01-13  5:17           ` Songtao Chen
2002-08-30  2:41 Ritzert
2002-09-03 14:07 ` Matt Austern
2002-09-10  1:06   ` Michael Ritzert
2000-12-06  3:42 Martin Kahlert
2000-01-30 16:44 Kuo Yu Chuang
     [not found] <007d01bf6988$d2fb0c40$795d608c@ccl.itri.org.tw>
2000-01-30  2:45 ` Martin v. Loewis
1999-05-11 21:09 Christian II
1999-05-11 23:44 ` Martin v. Loewis

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