id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6690	access violation using global path object	Claudio Bley	Beman Dawes	"I think this is an instance of ""static initialization order fiasco"".

The following code crashes with ""Access violation reading location 0x00000000"".
{{{
#!cpp
#include <boost/filesystem.hpp>
#include <iostream>

const boost::filesystem::path p(""test"");

int main(int argc, char *argv[])
{
  std::cout << p << std::endl;
}
}}}
This is caused by ```codecvt_facet``` not being initialised on its first use. Call Stack:

{{{
fspath.exe!std::codecvt<wchar_t,char,int>::in(int & _State, const char * _First1, const char * _Last1, const char * & _Mid1, wchar_t * _First2, wchar_t * _Last2, wchar_t * & _Mid2)  Line 1521 + 0x1f bytes	C++
fspath.exe!`anonymous namespace'::convert_aux(const char * from, const char * from_end, wchar_t * to, wchar_t * to_end, std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> > & target, const std::codecvt<wchar_t,char,int> & cvt)  Line 84 + 0x24 bytes	C++
fspath.exe!boost::filesystem3::path_traits::convert(const char * from, const char * from_end, std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> > & to, const std::codecvt<wchar_t,char,int> & cvt)  Line 165 + 0x20 bytes	C++
fspath.exe!boost::filesystem3::path_traits::dispatch<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> > >(const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & c, std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> > & to, const std::codecvt<wchar_t,char,int> & cvt)  Line 174 + 0x60 bytes	C++
fspath.exe!boost::filesystem3::path::path<char const [5]>(const char [5]& source, void * __formal)  Line 135 + 0x23 bytes	C++
}}}

this == 0x00000000

Compiled with ```cl /EHsc /DEBUG /Zi /D _DEBUG /MTd /I%localappdata%\boost\boost_1_49 fspath.cpp /link /libpath:%localappdata%\boost\boost_1_49\lib```.

- Claudio"	Bugs	closed	To Be Determined	filesystem	Boost 1.49.0	Regression	fixed