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Merge pull request #194 from Tilkal/random-missing-methods

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Random missing methods
This commit is contained in:
Ethan Buchman
2018-04-03 23:52:16 +03:00
committed by GitHub
parent f457435199 74486f7f93
commit 5c3d3f0875
1 changed files with 24 additions and 0 deletions
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24
common/random.go
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@ -93,10 +93,18 @@ func RandInt31() int32 {
return grand.Int31()
}
func RandInt31n(n int32) int32 {
return grand.Int31n(n)
}
func RandInt63() int64 {
return grand.Int63()
}
func RandInt63n(n int64) int64 {
return grand.Int63n(n)
}
func RandUint16Exp() uint16 {
return grand.Uint16Exp()
}
@ -224,6 +232,14 @@ func (r *Rand) Int31() int32 {
return i31
}
// It is not safe for cryptographic usage.
func (r *Rand) Int31n(n int32) int32 {
r.Lock()
i31n := r.rand.Int31n(n)
r.Unlock()
return i31n
}
// It is not safe for cryptographic usage.
func (r *Rand) Int63() int64 {
r.Lock()
@ -232,6 +248,14 @@ func (r *Rand) Int63() int64 {
return i63
}
// It is not safe for cryptographic usage.
func (r *Rand) Int63n(n int64) int64 {
r.Lock()
i63n := r.rand.Int63n(n)
r.Unlock()
return i63n
}
// Distributed pseudo-exponentially to test for various cases
// It is not safe for cryptographic usage.
func (r *Rand) Uint16Exp() uint16 {