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Link errors when using static std::list

Started by revearz Apr 20, 2004 at 9:56 PM 1 replies 350+ views

Original Post

Apr 20, 2004 at 9:56 PM

Hi, I''m getting link errors when I''m using a static std::list as a member variable in my class. Completely stumped .. Example: class CTest { public: CTest () { }; ~CTest() { }; static std::vector list; }; static CTest test; int main( ) { test.list.push_back( 1 ); } I get the following link error: "error LNK2001: unresolved external symbol "public: static class std::vector > CTest::list" (?list@CTest@@2V?$vector@HV?$allocator@H@std@@@std@@A)" It links fine when I remove the static declaration in front of the std::vector though. Anyone have a clue? Thanks

Sneftel

297

Sneftel

Apr 20, 2004 at 9:59 PM

A static class variable must not only be declared; it must also be defined in a source file. Watch:


// MyClass.h


class MyClass
{
    static int i;
};


// MyClass.cpp

int MyClass::i;

"Sneftel is correct, if rather vulgar." --Flarelocke

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