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https://issues.apache.org/jira/browse/STDCXX-843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Martin Sebor resolved STDCXX-843.
---------------------------------
Resolution: Fixed
Fix committed in [r646133|http://svn.apache.org/viewvc?rev=646133&view=rev].
Need to put together a regression test.
Will close after the fix along with the regression test have been integrated
into 4.2.x in the next bulk merge.
> [Sun C++] sizeof(mbstate_t) depends on #include order
> -----------------------------------------------------
>
> Key: STDCXX-843
> URL: https://issues.apache.org/jira/browse/STDCXX-843
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 21. Strings
> Affects Versions: 4.2.0
> Environment: Sun C++
> Reporter: Martin Sebor
> Assignee: Martin Sebor
> Priority: Blocker
> Fix For: 4.2.1
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> The size of the {{mbstate_t}} type and its aliiases (such as
> {{std::istream::traits_type::state_type)}}) appears to depend on the order in
> which stdcxx headers are #included:
> {noformat}
> $ cat u.cpp && gmake u.o && mv u.o v.o && gmake CPPOPTS=-DMAIN u LDOPTS=v.o
> && ./u
> #ifdef MAIN
> # include <iomanip>
> # include <istream>
> void mbstate_size (size_t);
> int main ()
> {
> mbstate_size (sizeof (std::istream::traits_type::state_type));
> }
> #else
> # include <assert.h>
> # include <wchar.h>
> # include <stdio.h>
> void mbstate_size (size_t n)
> {
> const size_t size = sizeof (mbstate_t);
> printf ("%zu == %zu\n", n, size);
> fflush (stdout);
> assert (n == size);
> }
> #endif
> CC -c -D_RWSTDDEBUG -mt -I/amd/devco/sebor/stdcxx/include
> -I/build/sebor/stdcxx-suncc-5.9-j1-15D/include
> -I/amd/devco/sebor/stdcxx/tests/include -library=%none -g -m64 +w -errtags
> -erroff=hidef u.cpp
> CC -c -D_RWSTDDEBUG -mt -I/amd/devco/sebor/stdcxx/include
> -I/build/sebor/stdcxx-suncc-5.9-j1-15D/include
> -I/amd/devco/sebor/stdcxx/tests/include -DMAIN -library=%none -g -m64 +w
> -errtags -erroff=hidef u.cpp
> CC u.o -o u -L/build/sebor/stdcxx-suncc-5.9-j1-15D/rwtest -lrwtest15D
> -library=%none -mt -m64 -L/build/sebor/stdcxx-suncc-5.9-j1-15D/lib v.o
> -R/build/sebor/stdcxx-suncc-5.9-j1-15D/lib:/build/sebor/stdcxx-suncc-5.9-j1-15D/rwtest
> -lstd15D -lm
> 24 == 32
> Assertion failed: n == size, file u.cpp, line 24
> Abort (core dumped)
> {noformat}
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