no matching function to call to “standard constructor”

Question

I get a weird response from my c++ compiler. I searched the internet but came up with nothing usefull or helpfull...

Compiler Response:

Answer 1

HexFloatingPoint is derived from FloatingPoint, but you don't call any of FloatingPoint's constructors in the initialiser list in HexFloatingPoint's constructor. This means the default (no-parameter) constructor of FloatingPoint gets called, but the class doesn't define it, so you get the error.

Either call a constructor of FloatingPoint in HexFloatingPoint's initialiser list, or give FloatingPoint a default constructor.