[STDCXX-374] [exec] incorrect pass rate for 23.deque.iterators on Windows

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Component/s: Utilities

Environment

MSVC 7.1, 8.0/Windows

• Assignee: Martin Sebor
• Reporter: Martin Sebor
• Created: 26/Mar/07 23:53
• Updated: 14/Aug/07 22:05
• Resolved: 27/Mar/07 23:21

Description

-------- Original Message --------
Subject: incorrect pass rate for 23.deque.iterators on Windows
Date: Fri, 23 Mar 2007 10:28:35 -0600
From: Martin Sebor <[e-mail]>
Reply-To: [e-mail]
Organization: Rogue Wave Software
To: [e-mail]

While looking at our Windows nightly test results I spotted
what I suspect to be a case of some bad math in the exec
utility when calculating percentages. The 23.deque.iterators
test is reported as failing 0 out of a total of 77,810,809
assertions and its pass rate as being 44%. This happens with
both MSVC 7.1 and 8.0. The pass rate is clearly wrong but I
suspect the 77 million assertions isn't really correct either
(on UNIX we consistently get 4,915,404).

23.deque.iterators.exe 0 0 77810809 0 44% 3.203

I'm guessing it's one of two things: either we have a Windows
specific bug in our code in exec, or there is a bug in both
versions of MSVC that causes this.

Andrew or Farid, do you guys have any insight?

Martin

Issue Links

• is duplicated by: STDCXX-376 test driver reports incorrect pass rathe due to arithmetic overflow