Unable to pass a class as a parameter

Projects Programming
1

Tonight I had something strange.

I have a class named Detection in a file named Detection.h.

In my main ico file, I wanted to have a function take it as a parameter.

void foo(Detection& d) {
  d.whatever();
}

However the above gave me an error about Decoration being unknown.

However, if I rewrote it like so:

Detection d:
void foo() { //I assign to the global variable then call foo()
  d.whatever();
}

This compiles and works. So why can't it find the symbol as a global variable but not as a parameter?

2

As your topic does not relate directly to the installation or operation of the IDE it has been moved to the Programming category of the forum

3

Sigh, another !^#%^&!#% snippet...

Fine.

You mean a "function take an instance of it as a parameter, yes?

Decoration or Detection?

That makes no sense whatsoever.

The following non snippet compiles just fine.

class Detection {
 public:
   Detection() {};
   void whatever(void) { Serial.println("Whatever"); };
};

void foo(Detection& d) {
   d.whatever();
}

void setup(void) {
   Detection xyz;
   Serial.begin(115200);
   foo(xyz);
}

void loop(void) {
}
4

Check this:

5

I know I'm light on the details. I tried to make a short example program to reproduce the problem in short amount of code. But my short version compiled fine.

I'll supply more details soon.

6

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