I need help in the Syntax of this

Projects Programming
2

My advice is to pass the array by reference, like this:

void func (float (& args) [3])
{
  args [0] += 1;
  args [1] *= 2;
  args [2] /= 3;
}

void setup ()
  {
  float foo [3] = { 5, 6, 7 };
  func (foo);
  }
void loop () {}