gtsocial-umbx

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rangecheck.go (843B)

      1 // Copyright 2013-2022 Frank Schroeder. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 package properties
      6 
      7 import (
      8 	"fmt"
      9 	"math"
     10 )
     11 
     12 // make this a var to overwrite it in a test
     13 var is32Bit = ^uint(0) == math.MaxUint32
     14 
     15 // intRangeCheck checks if the value fits into the int type and
     16 // panics if it does not.
     17 func intRangeCheck(key string, v int64) int {
     18 	if is32Bit && (v < math.MinInt32 || v > math.MaxInt32) {
     19 		panic(fmt.Sprintf("Value %d for key %s out of range", v, key))
     20 	}
     21 	return int(v)
     22 }
     23 
     24 // uintRangeCheck checks if the value fits into the uint type and
     25 // panics if it does not.
     26 func uintRangeCheck(key string, v uint64) uint {
     27 	if is32Bit && v > math.MaxUint32 {
     28 		panic(fmt.Sprintf("Value %d for key %s out of range", v, key))
     29 	}
     30 	return uint(v)
     31 }