// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package internal // import "go.opentelemetry.io/otel/sdk/metric/internal"

// ReuseSlice returns a zeroed view of slice if its capacity is greater than or
// equal to n. Otherwise, it returns a new []T with capacity equal to n.
func ReuseSlice[T any](slice []T, n int) []T {
	if cap(slice) >= n {
		return slice[:n]
	}
	return make([]T, n)
}