Calculating average/mean of different type arrays with one function?

Using Arduino Programming Questions
#1

I have a few arrays, some of them are float some of them az int (uint16_t, analog readings). I would like to write a method that can calsulate the mean value of all of them. Here is what I got right know. The problem is that the function can’t receive arrays with non floats.

#define NUM_OF_READINGS 5
uint16_t array1[NUM_OF_READINGS] = {1,2,3,4,5};
float array2[NUM_OF_READINGS] = {1,2,3,4,5};
uint16_t avg1;
float avg2;

void setup() {
  Serial.begin(9600);
  avg1 = average(array1);
  avg2 = average(array2);
  Serial.println(avg1);
  Serial.println(avg2);
}

void loop() {
  
}

float average (float *array) {
  float sum = 0L ;
  for (int i = 0 ; i < NUM_OF_READINGS ; i++){
    sum += array [i] ;
  }
  return  ((float) sum) / NUM_OF_READINGS ; 
}

Can I modify somehow the function, or do I need 2 functions for each types?

#2

you could use a template

#3

I aproached it a little bit different. Every arrays are float, but where it is needed, the average variable is integer, and I use tha “+0.5” trick to round the float from the function to int.

#define NUM_OF_READINGS 5
float array1[NUM_OF_READINGS] = {1,2,3,4,8};
float array2[NUM_OF_READINGS] = {1,2,3,4,8};
uint16_t avg1;
float avg2;

void setup() {
  Serial.begin(9600);
  avg1 = average(array1) + 0.5;
  avg2 = average(array2);
  Serial.println(avg1);
  Serial.println(avg2);

}

void loop() {
  
}

float average (float *array) {
  float sum = 0L ;
  for (int i = 0 ; i < NUM_OF_READINGS ; i++){
    sum += array [i] ;
  }
  return  ((float) sum) / NUM_OF_READINGS ;  // average will be fractional, so float may be appropriate.
}
#4