Lua variable to std::string fails on VS2015

[Zardoz89]

I just try this, that works on gcc 4.9 on my Linux box :

std::string out = lua_state["bar"][3];
_log.info() << "LUA: " << out;

Simply crash on VS2015 with Lua 5.2

How ever if I try, calling explicitly std::string conversion operator, it works :

auto sel = lua_state["bar"][3];
std::string out = sel.operator std::string();
log->info() << "LUA: " << out;

[jeremyong]

Is there a crash error?

[Zardoz89]

Exception thrown at 0x010EE486 in TEC.exe: 0xC0000005: Access violation reading location 0x00000014.

The code that throw the exception is inside on "xstring" lib of VStudio :

    size_type size() const _NOEXCEPT
        {   // return length of sequence
        return (this->_Mysize());
        }

Looks that the moment of throwing the exception, the basic_string object isn't correctly initialized -----> Comes from here :

Were _MyT is : typedef basic_string<_Elem, _Traits, _Alloc> _Myt;

I usually work with valgrind, kdgb & cia on Linux. I don't know very well VStudio to get more useful information. But, I think that is using the copy constructor instead of building a string from a char array.

[Zardoz89]

Merge #101 fix this.