rangecheck.go

// Copyright 2013-2022 Frank Schroeder. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package properties

import (
	"fmt"
	"math"
)

// make this a var to overwrite it in a test
var is32Bit = ^uint(0) == math.MaxUint32

// intRangeCheck checks if the value fits into the int type and
// panics if it does not.
func intRangeCheck(key string, v int64) int {
	if is32Bit && (v < math.MinInt32 || v > math.MaxInt32) {
		panic(fmt.Sprintf("Value %d for key %s out of range", v, key))
	}
	return int(v)
}

// uintRangeCheck checks if the value fits into the uint type and
// panics if it does not.
func uintRangeCheck(key string, v uint64) uint {
	if is32Bit && v > math.MaxUint32 {
		panic(fmt.Sprintf("Value %d for key %s out of range", v, key))
	}
	return uint(v)
}