Please tell me, why gcc linker gives me the following error: \"test_class::test_struct::constVar\", referenced from: __ZN12lu_test_class27test_struct6constVar$non_lazy_ptr in test_class.o ?
void foo (int x) { struct A { static const int d = 0; }; // error } Other than the reference from standard, is there any motivation behind this to disallow static field inside an inner class ?
Obviously there can\'t be an inst开发者_如何学Pythonance member on a static class, since that class could never be instantiated. Why do we need to declare members as static?I get asked questions like
I am a C++ programmer learning C#. I am currently reading C#4.0 in a Nutshell. I have come accross this statement/snipet on page 74:
I just did a little experiment: public abstract class MyClass { private static int myInt = 0; public static int Foo()
I need to access a static data member from a destructor, but on program exit it seems that it cannot be guaranteed to still exist! For some reason, the static members are being destroyed whilst there
I\'m trying to make a template which can make a few different types of classes that differ mainly in the name of things, i.e. 开发者_如何学运维a resistor should output \"Resistance: 4 ohm\" where a ca
Can a template class in C++ have st开发者_Python百科atic members? Since it doesn\'t exist and is imcomplete before it is used, is this possible?Yes. The static member is declared or defined inside the
Static constants in the ios_base class are initialized when created, which makes sense for constants.Can non-constant static member variables be initialized the same way, or is this concept only allow
c.h class C{ static string s; } c.cpp string C::s=D::staticMethod(); d.h class D{ static string s; static string staticMethod();
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