The Math Engine: More About C++ Than It Is About Math

Just Like Professor Keenan said, the math engine taught me a lot about C++ than it did about math. I list some of the things I learned about C++ below:

• Optional Function/Method Parameters:
• Those are the parameters that have default values, and are always put at the end of the parameters list. What I learned was not to define a default parameter twice (in the declaration and in the implementation), as it will not compile.
• Subscripting: Overloading the [] Operator:
• Overload it twice:
• Once with a return value of a reference type, which causes it be an I-value, allowing subscripted expressions on either side of the assignment operators:
• Vect& Vect::operator[](x_enum);
• To be used as either:
• V[x] = 5.0f;
• Or V[x] = V[y];
•  The second version of it is intended to be used by a constant object of the class it is overloaded for:
• const Vect Vect::operator[](x_enum) const;
• Overloading Unary Operators ( +, -, ++, -- ):
• Can be overloaded by a global function made as a friend for the class:
• Vect operator+(Vect& v);
• Or as instance method, like below:
• Vect Vect::operator+();
• Nameless Unions: to reduce typing.

And so much more really! These what I can remember now.

Wonderful class so far! :)