[STDCXX-93] [MSVC 8.0] time_get crashes when calling get_date

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.2, 4.1.3, 4.1.4
• Fix Version/s: 4.2.0
• Component/s: Examples

Environment

Visual C++ 8.0

• Severity: Runtime Error
• Assignee: Martin Sebor
• Reporter: Vikas Mehta
• Created: 02/Jan/06 11:48
• Updated: 27/Oct/07 21:37
• Resolved: 09/Oct/06 07:50

Description

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<

Issue Links

• is duplicated by: STDCXX-94 time_get crashes when calling get_date ( Visual C++ 8.0 )