C++ error two or more data types in declaration of function

Question

In a piece of code I am passing two parameters both of same type b2Vec2 *

void bool isVelocityAllowToCar(b2Vec2 *newVelocity, b2Vec2 *preVelocity);

When I build my project it showing me following error.

two or more data types in declaration of 'isVelocityAllowToCar'

What am I doing wrong?

Answer 1

The problem is the return type you specify. void bool is not valid, it's two types void and bool. You just need to remove the void and it should work:

bool isVelocityAllowToCar(b2Vec2 *newVelocity,b2Vec2 *preVelocity);