long long bug?

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Article #6115

#6115

From: Staale L. Hansen
Date: Tue, 03 Dec 1996 00:00

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In a loop reading data from disk I have a global counter of type
"long long", which is incremented by the number of bytes read.
The counter increases normally for a while, but suddenly it jumps
to a gigantic number (~120E12).
If I change the variable type to "long", or make it volatile, this
does not happen.

The code is too long to post here, but it is compiled with gcc 2.7.2.1
on Solaris x86 (Pentium) 2.5, with no optimization

Has anyone else seen this? Are there any known bugs with "long long"'s?

-- 
Staale L. Hansen, M.Sc.       | Spacetec A.S, Prestvannv. 38,
Software Engineer             | N-9005 Tromsoe, Norway
EMail: staale@spacetec.no     | Phone: +47 77 66 08 00
WWW:   http://www.spacetec.no | Fax:   +47 77 65 58 59

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From: "Staale L. Hansen" <staale@spacetec.no>
Subject: long long bug?
Date: 1996/12/03
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