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Add error value to sumAnyType

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This commit is contained in:
Holger Obermaier 2023-08-17 13:55:31 +02:00
parent a25f4f8b8d
commit fcda7a6921
1 changed files with 12 additions and 9 deletions
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21
internal/metricAggregator/metricAggregatorFunctions.go
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@ -14,12 +14,15 @@ import (
* Arithmetic functions on value arrays
*/
func sumAnyType[T float64 | float32 | int | int32 | int64](values []T) T {
func sumAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
if len(values) == 0 {
return 0.0, errors.New("sum function requires at least one argument")
}
var sum T
for _, value := range values {
sum += value
}
return sum
return sum, nil
}
// Sum up values
@ -28,15 +31,15 @@ func sumfunc(args interface{}) (interface{}, error) {
var err error
switch values := args.(type) {
case []float64:
return sumAnyType(values), nil
return sumAnyType(values)
case []float32:
return sumAnyType(values), nil
return sumAnyType(values)
case []int:
return sumAnyType(values), nil
return sumAnyType(values)
case []int64:
return sumAnyType(values), nil
return sumAnyType(values)
case []int32:
return sumAnyType(values), nil
return sumAnyType(values)
default:
err = errors.New("function 'sum' only on list of values (float64, float32, int, int32, int64)")
}
@ -79,8 +82,8 @@ func avgAnyType[T float64 | float32 | int | int32 | int64](values []T) (float64,
if len(values) == 0 {
return 0.0, errors.New("average function requires at least one argument")
}
sum := sumAnyType[T](values)
return float64(sum) / float64(len(values)), nil
sum, err := sumAnyType[T](values)
return float64(sum) / float64(len(values)), err
}
// Get the average or mean value