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https://issues.apache.org/jira/browse/STDCXX-766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589919#action_12589919
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Farid Zaripov commented on STDCXX-766:
--------------------------------------
Fix and regression test are merged in 4.2.x branch thus:
http://svn.apache.org/viewvc?view=rev&revision=648752
> std::ios::copyfmt() doesn't copy tie(), getloc()
> ------------------------------------------------
>
> Key: STDCXX-766
> URL: https://issues.apache.org/jira/browse/STDCXX-766
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 27. Input/Output
> Affects Versions: 4.1.2, 4.1.3, 4.1.4, 4.2.0
> Environment: all
> Reporter: Martin Sebor
> Assignee: Martin Sebor
> Fix For: 4.2.1
>
> Original Estimate: 2h
> Time Spent: 3h
> Remaining Estimate: 0h
>
> The following test fails with the latest trunk.
> {noformat}
> $ cat t.cpp && make t && ./t
> #include <cstdio>
> #include <ios>
> #include <iosfwd>
> #include <locale>
> #include <ostream>
> #define ASSERT(expr) \
> (expr) ? (void)0 \
> : (void)std::fprintf (stderr, "line %d: Assertion failed: %s\n", \
> __LINE__, #expr)
> int main ()
> {
> std::ios x ((std::streambuf*)1);
> x.tie ((std::ostream*)2);
> std::ios y (0);
> const std::ios::iostate x_rdstate = x.rdstate ();
> const std::streambuf* const x_rdbuf = x.rdbuf ();
> const std::locale loc =
> std::locale (std::locale::classic (), new std::numpunct<char>());
> y.tie (x.tie () + 1);
> y.exceptions (y.eofbit);
> y.flags (y.boolalpha | y.scientific);
> y.precision (x.precision () + 1);
> y.width (x.width () + 1);
> y.fill (x.fill () + 1);
> y.imbue (loc);
> ASSERT (x.tie () != y.tie ());
> ASSERT (x.getloc () != y.getloc ());
> x.copyfmt (y);
> ASSERT (x.rdbuf () == x_rdbuf);
> ASSERT (x.tie () == y.tie ());
> ASSERT (x.rdstate () == x_rdstate);
> ASSERT (x.exceptions () == y.exceptions ());
> ASSERT (x.flags () == y.flags ());
> ASSERT (x.precision () == y.precision ());
> ASSERT (x.width () == y.width ());
> ASSERT (x.fill () == y.fill ());
> ASSERT (x.getloc () == y.getloc ());
> }
> gcc -c -I/home/sebor/stdcxx/include/ansi -D_RWSTDDEBUG
> -I/home/sebor/stdcxx/i
> nclude -I/build/sebor/stdcxx-gcc-4.1.2-11S-LVS/include
> -I/home/sebor/stdcxx/incl
> ude/ansi -I/build/sebor/PlumHall/lvs07a/conform
> -I/build/sebor/PlumHall/lvs07a/d
> st.3 -pedantic -nostdinc++ -g -W -Wall -Wcast-qual -Winline -Wshadow
> -Wwrite-
> strings -Wno-long-long -Wcast-align t.cpp
> gcc t.o -o t -L/build/sebor/stdcxx-gcc-4.1.2-11S-LVS/lib -lstd11S -lsupc++
> -lm
>
> line 39: Assertion failed: x.tie () == y.tie ()
> line 46: Assertion failed: x.getloc () == y.getloc ()
> {noformat}
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