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https://issues.apache.org/jira/browse/STDCXX-161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Sebor closed STDCXX-161.
-------------------------------
Regression test committed in
[r650356|http://svn.apache.org/viewvc?rev=650356&view=rev].
> filebuf::sgetn() fails after sputn() in stdio mode
> --------------------------------------------------
>
> Key: STDCXX-161
> URL: https://issues.apache.org/jira/browse/STDCXX-161
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 27. Input/Output
> Affects Versions: 4.1.3
> Environment: all
> Reporter: Martin Sebor
> Assignee: Martin Sebor
> Priority: Critical
> Fix For: 4.1.4
>
>
> The program below fails at runtime (std::ios::stdio is an extension of this
> implementation that forces the filebuf to use the stdio facilities for I/O
> instead of OS native calls).
> $ cat t.cpp && gmake t && ./t
> #include <fstream>
> #include <cassert>
> int main ()
> {
> std::filebuf fb;
> assert (0 != fb.open ("testfile.text", std::ios::out));
> assert (6 == fb.sputn ("ABCDEF", 6));
> assert (0 != fb.close ());
> assert (0 != fb.open ("testfile.text",
> std::ios::in | std::ios::out | std::ios::stdio));
> assert (3 == fb.sputn ("abc", 3));
> assert (-1 != fb.pubsync ());
> char buf [3] = "";
> assert (3 == fb.sgetn (buf, sizeof buf));
> assert (0 == std::filebuf::traits_type::compare ("DEF", buf, 3));
> }
> aCC -c -I/build/sebor/dev/stdlib/include/ansi -I/usr/include -D_RWSTDDEBUG
> -mt -D_RWSTD_USE_CONFIG -I/build/sebor/aCC-3.63-15s/include
> -I/build/sebor/dev/stdlib/include -I/build/sebor/dev/stdlib/../rwtest
> -I/build/sebor/dev/stdlib/../rwtest/include
> -I/build/sebor/dev/stdlib/tests/include -Aa +nostl -g +d +w +W392 +W655
> +W684 +W818 +W819 +W849 t.cpp
> aCC t.o -o t -L/build/sebor/aCC-3.63-15s/rwtest -lrwtest15s -Aa +nostl -Wl,+s
> -Wl,+vnocompatwarnings -L/build/sebor/aCC-3.63-15s/lib -mt
> -L/build/sebor/aCC-3.63-15s/lib -lstd15s -lm
> Assertion failed: 0 == std::filebuf::traits_type::compare ("DEF", buf, 3),
> file t.cpp, line 20
> ABORT instruction (core dumped)
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