I’m trying to create a simple template list in C++, Visual Studio 2010 & I’m the getting : error C2244 unable to match function definition to an existing declaration. I’ve tried to change it to ‘typename’ but it didn’t help. it’s a basic template list with the very basic functions ( Ctor,Dtor,Add,Delete). Please help. You … Read more
The compiler is complaining about Node<E>; there is no template named Node in global scope. The code has to say that it’s the member template:
I’d like to be able to introspect a C++ class for its name, contents (i.e. members and their types) etc. I’m talking native C++ here, not managed C++, which has reflection. I realise C++ supplies some limited information using RTTI. Which additional libraries (or other techniques) could supply this information?
Your desire not to modify t is expressed in const T& t. The ending const specifies that you will not modify any member variable of the class abs belongs to. Since there is no class where this function belongs to, you get an error.
It’s a specialization. template<> means that the specialization itself is not templated- i.e., it is an explicit specialization, not a partial specialization.
A non-type template argument needs to be a compile-time constant. Casting an int to a const int does not make it a compile-time constant. You either need to use 10 directly: or make i a const int:
When inheriting you must show how to instantiate the parent template, if same template class T can be used do this: If something else is needed just change the line:
First in reference below you will find how to override properly woocommerce templates via a theme (avoiding editing the plugin templates). In your first code snippet, as you can see for woocommerce_single_product_summary hook, you have in order all the different templates that are @hooked in this hook location with do_action() WordPress function: So in your … Read more
To figure out the problem let separate statements: setCallback needs to know type of T and it can’t deduce it from f, so give it a type
pair is name of a standard class and with the using namespace std, there is a collision. Several solutions : Rename your class to something else. Dont use the using statement