Package: tcc
Version: 0.9.26~git20120104.83d57c0-4
Severity: important
On x86_64 (but not on i386), the left shift is buggy:
#include <stdio.h>
#include <limits.h>
#define SH (CHAR_BIT * sizeof(unsigned long) / 2)
int main (void)
{
unsigned long m;
int sh = SH;
printf ("SH = %d\n", (int) SH);
m = 1UL << SH;
printf ("m = 0x%lx\n", m);
m = 1UL << sh;
printf ("m = 0x%lx\n", m);
m = 1UL << (SH/2);
m *= m;
printf ("m = 0x%lx\n", m);
return 0;
}
gives:
SH = 32
m = 0x0
m = 0x1
m = 0x100000000
The correct result (as obtained with gcc) is:
SH = 32
m = 0x100000000
m = 0x100000000
m = 0x100000000
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages tcc depends on:
ii dpkg 1.16.1.2
ii install-info 4.13a.dfsg.1-8
ii libc6 2.13-27
Versions of packages tcc recommends:
ii libc6-dev [libc-dev] 2.13-27
tcc suggests no packages.
-- no debconf information
--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
