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class a{
public:
int b;
static int c;
virtual void mod() const
{
c=4;
}
};
int _tmain(int argc, _TCHAR* argv[])
{
a bi;
return 0;
}
Look at this … After compiling it using Visual Studio C++ 2010 compiler, I get…
cpplearningconsole.obj : error
LNK2001: unresolved external symbol
“public: static int a::c” (?c@a@@2HA)
I guess this is a compiler bug.
For me, the real question is. Should mod be able to modify c variable if it is const?
Thanks.
You have just declared the static variable in the class definition, you need to define it in the by doing
int a::c = 0;.