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Date: Tue, 22 May 2007 09:00:37 -0700 (PDT)
From: "Martin Sebor (JIRA)" <jira@apache.org>
To: stdcxx-dev@incubator.apache.org
Subject: [jira] Created: (STDCXX-423) LIMITS.cpp assumes integers with no
 padding bits
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LIMITS.cpp assumes integers with no padding bits
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                 Key: STDCXX-423
                 URL: https://issues.apache.org/jira/browse/STDCXX-423
             Project: C++ Standard Library
          Issue Type: Bug
          Components: Configuration
    Affects Versions: 4.1.2, 4.1.3, 4.2
         Environment: unknown
            Reporter: Martin Sebor
            Priority: Trivial


The LIMITS.cpp config test tries to determine exact-width integer typese (the equivalent of things such as int32_t) but it fails to consider the fact that all integer types other than unsigned char may have padding bits that contribute to their size but not to their range (i.e., there may be two or more distinct bit patters that represent the same value, or bit patterns that do not correspond to any value at all). This is only an issue in theory since we know of no architecture with such a representation.

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