38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
// Copyright (c) 2014, B3log
|
|
//
|
|
// 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 util
|
|
|
|
import "math/rand"
|
|
|
|
type myrand struct{}
|
|
|
|
// Random utilities.
|
|
var Rand = myrand{}
|
|
|
|
// String returns a random string ['a', 'z'] in the specified length
|
|
func (*myrand) String(length int) string {
|
|
bytes := make([]byte, length)
|
|
for i := 0; i < length; i++ {
|
|
bytes[i] = byte(Rand.Int('a', 'z'))
|
|
}
|
|
|
|
return string(bytes)
|
|
}
|
|
|
|
// Int returns a random integer in range [min, max].
|
|
func (*myrand) Int(min int, max int) int {
|
|
return min + rand.Intn(max-min)
|
|
}
|