1
0
mirror of https://github.com/MontFerret/ferret.git synced 2024-12-29 01:44:23 +02:00
ferret/pkg/stdlib/math/round.go
Tim Voronov 1af8b37a0f
New type system (#232)
* New type system

* Fixed dot notation for HTML elements
2019-02-13 12:31:18 -05:00

30 lines
715 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"
)
// Round returns the nearest integer, rounding half away from zero.
// @param number (Int|Float) - Input number.
// @returns (Int) - The nearest integer, rounding half away from zero.
func Round(_ 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.NewInt(int(math.Round(toFloat(args[0])))), nil
}