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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Closed: (STDCXX-233) std::strstreambuf::seekpos() fails to properly position get sequence
Date Wed, 30 May 2007 00:40:15 GMT

     [ https://issues.apache.org/jira/browse/STDCXX-233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Martin Sebor closed STDCXX-233.
-------------------------------

    Resolution: Fixed

The test case passes with the latest trunk. The test mentioned in the issue has moved to a
test named 27_setbuf.cpp (not in svn yet) and that one passes as well, so the problem must
have been fixed a long time ago. Closing.

> std::strstreambuf::seekpos() fails to properly position get sequence
> --------------------------------------------------------------------
>
>                 Key: STDCXX-233
>                 URL: https://issues.apache.org/jira/browse/STDCXX-233
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: 27. Input/Output
>    Affects Versions: 4.2
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>
> Moved from the Rogue Wave bug tracking database:
> ****Created By: sebor @ Jul 01, 2000 08:28:15 PM****
> This program fails with exit status of 1. It exits successfully (with 0) when std::strstreambuf
is replaced with std::stringbuf. I don't see anything in D.7.1 that would require this behavior.
Looks like a bug...
> The (enhanced) regress/test_bug10430.cpp exercises this bug and fails as a result.
> #include <strstream>
> int main ()
> {
>     std::strstreambuf sb;
>     sb.sputn ("a", 1);
>     sb.pubseekpos (0);
>     char buf[2] = { 'X', 'Y' };
>     return !(   1 == sb.sgetn (buf, sizeof buf)
>              && 'a' == buf [0] && 'Y' == buf [1]);
> }
> ****Modified By: sebor @ Nov 28, 2000 10:09:20 PM****
> $ cat test_bug10430.out
> ## -------------------------------
> ## TestTag     = RWQETest test_bug10430
> ## CompilerId  = g++-2.95.2
> ## MachineId   = SunOS killer 5.7 Generic_106541-12 sun4u sparc SUNW,Ultra-4
> ## Remark      = 
> ## RunTag      = test_bug10430 regression test
> ## FunctionTag = Issue #10430 -- streambufs delete passed in buffers.
> ##    StepTag = stringbuf
> ##    StepTag = filebuf
> ##    StepTag = wstringstream
> ##    StepTag = wfilebuf
> ##    StepTag = strstreambuf
> ## -       AssertionTag = strstreambuf::sgetn ("", 11) == 11 (got 11)
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 102
> ## -       AssertionTag = strstreambuf::sgetn ("", 11); expected "0123456789"
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 107
> ## -       AssertionTag = strstreambuf::setbuf (0, 0) must have no effect
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 113
> ## -       AssertionTag = strstreambuf::sgetn ("", 11) == 11 (got 0)
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 121
> ## -       AssertionTag = strstreambuf::sgetn ("", 11); expected "0123456789"
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 126
> ## -       AssertionTag = strstreambuf<>::setbuf (63720, 1) must fail
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 133
> ## -       AssertionTag = strstreambuf<>::setbuf (63720, 1) must succeed
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 142
> ## -       AssertionTag = strstreambuf<>::setbuf (63720, 12) must succeed
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 151
> ## -       AssertionTag = strstreambuf<>::setbuf (63720, 22) must succeed
> ## -       FileName     = /build2/sebor/dev/stdlib/tests/regress/test_bug10430.cpp
> ## -       LineNumber   = 160
> ## Assertions = 75
> ## FailedAssertions = 9

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