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Date: Wed, 4 Oct 2006 11:55:26 -0700 (PDT)
From: "Martin Sebor (JIRA)" <jira@apache.org>
To: stdcxx-dev@incubator.apache.org
Subject: [jira] Commented: (STDCXX-93) time_get crashes when calling
 get_date ( Visual C++ 8.0 )
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    [ http://issues.apache.org/jira/browse/STDCXX-93?page=comments#action_12439942 ] 
            
Martin Sebor commented on STDCXX-93:
------------------------------------

This is yet another gratuitous conformance violation in the MSVC runtime library. I opened an issue for it (although I doubt they'll fix it, they
treat the C/C++ standards as just a bunch of suggestions): https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=218258 

> time_get crashes when calling get_date ( Visual C++ 8.0 )
> ---------------------------------------------------------
>
>                 Key: STDCXX-93
>                 URL: http://issues.apache.org/jira/browse/STDCXX-93
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: Examples
>         Environment: Visual C++ 8.0
>            Reporter: Vikas Mehta
>         Assigned To: Martin Sebor
>
> Test case:
> // Following code snippet is taken from examples\manual\time_get.cpp
> // NOTE: A SunPro bug requires time.h preceed locale. PR #26255
> #include <ctime>      // for struct tm
> #include <locale>     // for locale, time_get
> #include <sstream>    // for stringstream
> #include <iostream>   // for cout, endl
> // Print out a tm struct value in one atomic operation
> std::ostream& operator<< (std::ostream &os, const std::tm &t)
> {
>     std::stringstream strm;
>     strm << "Daylight Savings = "   << t.tm_isdst
>          << "\nDay of year      = " << t.tm_yday
>          << "\nDay of week      = " << t.tm_wday
>          << "\nYear             = " << t.tm_year
>          << "\nMonth            = " << t.tm_mon
>          << "\nDay of month     = " << t.tm_mday
>          << "\nHour             = " << t.tm_hour
>          << "\nMinute           = " << t.tm_min
>          << "\nSecond           = " << t.tm_sec
>          << '\n';
>     // guard for thread safety and output synchronization
>     const std::ostream::sentry guard (os);
>     if (guard)
>         os.rdbuf ()->sputn (strm.str ().c_str (), strm.str ().size ());
>     else
>         os.setstate (os.failbit);
>     return os;
> }
> int main ()
> {
>     typedef std::istreambuf_iterator<char, std::char_traits<char> > Iter;
>     // time struct to parse date into
>     static std::tm timeb;  // zero initialized
>     // Unused, required by time_get
>     std::ios_base::iostate state;
>     // Stream object to read from
>     std::istringstream ins ("");
>     // Iterators into the stream object
>     Iter begin (ins);
>     Iter end;
>     // Get a reference to the time_get facet in locale loc.
>     const std::time_get<char, Iter> &tg =
>         std::use_facet<std::time_get<char, Iter> >(std::locale ("C"));
>     // Display time_base::dateorder value.
>     std::cout << "time_base::dateorder == " << tg.date_order () << ".\n";
>   
>     // Insert date string into stream.
>     ins.str ("04/07/69");
>     // get_date from the stream and output tm contents.
>     tg.get_date (begin, end, ins, state, &timeb);
>     std::cout << "Date: Apr 7 1969\n" << timeb << std::endl;
>     return 0;
> }
> Stack Trace:
> >	msvcr80d.dll!_mbstowcs_l_helper(wchar_t * pwcs=0x008e2b78, const char * s=0x008e6008, unsigned int n=1812, localeinfo_struct * plocinfo=0x0012f740)  Line 71	C++
>  	msvcr80d.dll!_mbstowcs_s_l(unsigned int * pConvertedChars=0x0012f7b0, wchar_t * pwcs=0x008e2b78, unsigned int sizeInWords=1812, const char * s=0x008e6008, unsigned int n=4294967295, localeinfo_struct * plocinfo=0x0012f7d4)  Line 259 + 0x30 bytes	C++
>  	msvcr80d.dll!_wcsftime_l_stat(wchar_t * wstring=0x008e2b78, unsigned int maxsize=1812, const wchar_t * wformat=0x00473980, const tm * timeptr=0x0012f858, localeinfo_struct * plocinfo=0x0012f7d4)  Line 101 + 0x32 bytes	C++
>  	msvcr80d.dll!_wcsftime_l(wchar_t * wstring=0x008e2b78, unsigned int maxsize=1812, const wchar_t * wformat=0x00473980, const tm * timeptr=0x0012f858, localeinfo_struct * plocinfo=0x00000000)  Line 152 + 0x1e bytes	C++
>  	msvcr80d.dll!wcsftime(wchar_t * wstring=0x008e2b78, unsigned int maxsize=1812, const wchar_t * wformat=0x00473980, const tm * timeptr=0x0012f858)  Line 162 + 0x17 bytes	C++
>  	time_get.exe!__rw::__rw_get_timepunct(const __rw::__rw_facet * pfacet=0x0049465c, int flags=64, unsigned int inx=0)  Line 695 + 0x28 bytes	C++
>  	time_get.exe!__rw::__rw_get_timepunct(const __rw::__rw_facet * pfacet=0x0049465c, int flags=64, const void * * names=0x0012fc40, unsigned int * sizes=0x0012faa8)  Line 1115 + 0x11 bytes	C++
>  	time_get.exe!__rw::__rw_get_timepunct(const __rw::__rw_facet * pfacet=0x0049465c, int * data=0x0012fa4c, tm * tmb=0x0012fa78, int * * pmem=0x0012fa6c, const void * * names=0x0012fc40, unsigned int * sizes=0x0012faa8)  Line 1452 + 0x23 bytes	C++
>  	time_get.exe!std::time_get<char,std::istreambuf_iterator<char,std::char_traits<char> > >::do_get(std::istreambuf_iterator<char,std::char_traits<char> > __it={...}, std::istreambuf_iterator<char,std::char_traits<char> > __end={...}, std::ios_base & __fl={...}, __rw::__rw_iostate & __err=-858993460, tm * __tmb=0x00492518, char __fmt='x', char __modifier=0)  Line 175 + 0x2c bytes	C++
>  	time_get.exe!std::time_get<char,std::istreambuf_iterator<

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