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Problem Report 2565 Details

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    Problem Report Number 2565
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Rejected (REJ)
    Problem Resolution ID REJ.X.0687
    Raised 2011-03-10 06:11
    Updated 2011-06-01 10:50
    Published 2011-06-01 10:50
    Product Standard Internationalised System Calls and Libraries Extended V3 (UNIX 03)
    Certification Program The Open Brand certification program
    Test Suite VSX4 version 4.7.3
    Test Identification /tset/ANSI.os/streamio/printf/T.*printf.83,84 <16 tests total>
    /tset/MSE.os/streamio/wprintf/T.[fw|sw|vfw|vsw|vw|w]printf.83,84 <12
    tests total>
    Specification Base Definitions Issue 6
    Problem Summary Various /tset/*.os/streamio/*printf tests 83 and 84 fail due to the
    assumption that the value which the NAN macro returns will not have the
    sign bit set.
    Problem Text A NaN may have the sign bit set or reset; the standard does not express
    a preference between the two.

    Tests 83 and 84 of the /tset/ANSI.os/streamio/printf/ T.fprintf,
    T.printf, T.snprintf, T.sprintf; /tset/ANSI.os/streamio/vprintf/
    T.vfprintf, T.vprintf, T.vsnprintf, T.vsprintf; and
    /tset/MSE.os/streamio/wprintf T.fwprintf, T.swprintf, T.vfwprintf,
    T.vswprintf, T.vwprintf, and T.wprintf will all fail on systems where
    NAN returns a NaN with the sign bit set, as the tests assumes the sign
    bit will be reset.
    Test Output Under 'Test Information', all 28 tests report:

    fwprintf(f_wr, "%6a %6e %6f %6g\n", NAN, NAN, NAN, NAN) failed
    (a, e, f, g) format converts float or double to [-]nan format
    Observed output: " -nan -nan -nan -nan\n"
    Expected output: " nan nan nan nan\n"
    fwprintf(f_wr, "%6a %6e %6f %6g\n", -NAN, -NAN, -NAN, -NAN) failed
    (a, e, f, g) format converts float or double to [-]nan format
    Observed output: " nan nan nan nan\n"
    Expected output: " -nan -nan -nan -nan\n"
    fwprintf(f_wr, "%06a %06e %06f %06g\n", NAN, NAN, NAN, NAN) failed
    (a, e, f, g) format converts float or double to [-]nan format
    Observed output: " -nan -nan -nan -nan\n"
    Expected output: " nan nan nan nan\n"
    fwprintf(f_wr, "%06a %06e %06f %06g\n", -NAN, -NAN, -NAN, -NAN) failed
    (a, e, f, g) format converts float or double to [-]nan format
    Observed output: " nan nan nan nan\n"
    Expected output: " -nan -nan -nan -nan\n"

    Review Information

    Review Type TSMA Review
    Start Date 2011-03-10 06:11
    Last Updated 2011-03-10 12:10
    Completed 2011-03-10 12:10
    Status Complete
    Review Recommendation Rejected (REJ)
    Review Response These tests are supposed to check whether the sign bit of the NAN
    value they use is set, and adjust the expected strings accordingly.
    This is done for the original test parts but not for the added
    field width test parts, and this matches the test output which
    only shows failures with field widths.

    Although this PR has identified a test suite fault, it contains test
    results from both VSX4 and VSX5, and it is not possible to grant a
    TSD that covers two different test suites. Therefore the request
    should be rejected. The submitter may wish to submit two new
    requests, one for each test suite. In any case the faults will
    be fixed in the next VSX4 and VSX5 maintenance releases.

    Review Type SA Review
    Start Date 2011-03-10 20:10
    Last Updated 2011-03-10 12:39
    Completed 2011-03-10 12:39
    Status Complete
    Review Resolution Rejected (REJ)
    Review Conclusion This request is rejected. See the TSMA response for rationale.

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