Question

Trying to initialize and set things up for a class as follows:

class Accel
{
public:
    Accel(const struct &F, const struct &m, const struct &M, const struct &I);

    etc...
}

I get “‘struct’: missing tag name” when I try to compile. I’m using someone (who I trust) else’s coding “conventions”, which is where the “const struct &…” comes from, but if someone knows a better way to do that, then let me know.

Answer 1

struct is a keyword in C++; it cannot be used as a type name. Use something else instead:

class Dennis;
struct Janet;  // "struct" is pretty much identical to "class"

class Accel
{ 
public:
    Accel(const Dennis & F, const Dennis & m, const Janet & j) { /* ... */ }
    // ...
};

(Type naming in C++ is different from that in other languages, such as C. In C++ you say, class Dennis; Dennis x;, while in C you would have to say struct Janet; struct Janet y;, or use a typedef to make a typename that you can use without saying “struct”.)