Re: static std::vector<std::string> member and a static function

"Alf P. Steinbach" <>
Tue, 15 Jun 2010 11:21:28 +0200
* A L, on 15.06.2010 11:08:


I am getting this linker error:

error LNK2019: unresolved external symbol "public: static class
std::vector<class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> >,class
std::allocator<class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > > > &
__cdecl ......

I have a static std::vector<std::string> member in the private section
of my class. I am initializing/defining this static member in my cpp
file like this:

std::vector<std::string> MyClass::myStaticMember_ ;

then I have a function that returns a reference to the above vector:

std::vector<std::string> &myFunction()
    return myStaticMember_;

I am using this function in my main code like this:

std::vector<std::string> &myStrings = MyClass::myFunction();

I am using Visual Studio 2008 Team System.

Any help?

Most probably you forgot to add your cpp file to your Visual Studio project.

By the way are you sure that you want client code to be able to modify the vector?

Might be an idea to add a little 'const'.

Cheers & hth.,

- Alf

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