mirror of
https://github.com/MontFerret/ferret.git
synced 2024-12-23 01:24:30 +02:00
30 lines
687 B
Go
30 lines
687 B
Go
package math
|
|
|
|
import (
|
|
"context"
|
|
"math"
|
|
|
|
"github.com/MontFerret/ferret/pkg/runtime/core"
|
|
"github.com/MontFerret/ferret/pkg/runtime/values"
|
|
"github.com/MontFerret/ferret/pkg/runtime/values/types"
|
|
)
|
|
|
|
// Log2 returns the binary logarithm of a given value.
|
|
// @param number (Int|Float) - Input number.
|
|
// @returns (Float) - The binary logarithm of a given value.
|
|
func Log2(_ context.Context, args ...core.Value) (core.Value, error) {
|
|
err := core.ValidateArgs(args, 1, 1)
|
|
|
|
if err != nil {
|
|
return values.None, err
|
|
}
|
|
|
|
err = core.ValidateType(args[0], types.Int, types.Float)
|
|
|
|
if err != nil {
|
|
return values.None, err
|
|
}
|
|
|
|
return values.NewFloat(math.Log2(toFloat(args[0]))), nil
|
|
}
|