I want to enforce explicit conversion between structs kind of like native types: int i1; i1 = some_float; // this generates a warning
struct Base{ Base(Base &){}// suppress default constructor }; struct Derived : Base{ }; int main(){ Derived d;
So, I am try to write a simple base Exception class for C++, based on the Java Exception class. I\'m sure there are great libraries out there already, but I am doing this for practice, not production
I have the following data structure for storing meridians and parallels. Each cartographic point stores:
$12.8/2 - \'A non-template constructor for class X is a copy constructor if its first parameter is of type X&,
I have trouble implementing my class. It should be able to initialize from std::string. So I wrote a copy (?) constructor:
I tried to use copy constructor using statement: X y = X(); But copy constructor is not being called. I am using g++ 4.1.0. I set both X(const X&) and X(x&) constructor in the class.
This question already has answers here: Closed 12 years ago. 开发者_如何学Go Possible Duplicate: When do we have to use copy constructors?
I know that C++ compiler creates a copy constructor for a class. In which case do we开发者_Go百科 have to write a user-defined copy constructor? Can you give some examples? The copy constructor genera
What is the copy-and-swap idiom and when should it be used? What problems does it solve? Does it change for C++11?
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