I am programming an Arduino. In the same .ino file as setup() and loop() I have defined the following:

enum class CYCLE { TypeA, TypeB };

String cycleToString (CYCLE cycle) {
  if (cycle == CYCLE::TypeA) {
    return "TypeA";
  }
  else if (cycle == CYCLE::TypeB) {
    return "TypeB";
  }
  return "Undefined";
}

But on compiling it gives the error:

sketch_v1:37:22: error: 'CYCLE' was not declared in this scope
 String cycleToString (CYCLE cycle) {
                      ^
/Users/.../sketch_v1.ino: In function 'String cycleToString(CYCLE)':
sketch_v1:37:31: error: 'String cycleToString(CYCLE)' redeclared as different kind of symbol
 String cycleToString (CYCLE cycle) {
                                  ^
/Users/.../sketch_v1.ino:37:8: note: previous declaration 'String cycleToString'
 String cycleToString (CYCLE cycle) {
        ^

Note that the enum class is fine and works as intended but if I try to add the function relying on the CYCLE type it then errors.

I am programming an Arduino. In the same .ino file as setup() and loop() I have defined the following:

void setup()
{
  // setup code
}

enum class CYCLE { TypeA, TypeB };

String cycleToString (CYCLE cycle) {
  if (cycle == CYCLE::TypeA) {
    return "TypeA";
  }
  else if (cycle == CYCLE::TypeB) {
    return "TypeB";
  }
  return "Undefined";
}

void loop()
{
  // loop code
}

But on compiling it gives the error:

sketch_v1:37:22: error: 'CYCLE' was not declared in this scope
 String cycleToString (CYCLE cycle) {
                      ^
/Users/.../sketch_v1.ino: In function 'String cycleToString(CYCLE)':
sketch_v1:37:31: error: 'String cycleToString(CYCLE)' redeclared as different kind of symbol
 String cycleToString (CYCLE cycle) {
                                  ^
/Users/.../sketch_v1.ino:37:8: note: previous declaration 'String cycleToString'
 String cycleToString (CYCLE cycle) {
        ^

Note that the enum class is fine and works as intended but if I try to add the function relying on the CYCLE type it then errors.