From: Jakub Ciolek <jakub@ciolek.dev>
Date: Fri, 3 Jan 2025 16:23:05 +0000 (+0100)
Subject: internal/fuzz: remove the exp2 method
X-Git-Tag: go1.24rc2~6^2~23
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=f0a9b6df45;p=gostls13.git

internal/fuzz: remove the exp2 method

It's not being used anywhere, remove it.

Change-Id: I9c3eecacd4e5d44b18243bdec24ad88bc38c82bf
Reviewed-on: https://go-review.googlesource.com/c/go/+/639957
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
---

diff --git a/src/internal/fuzz/mutators_byteslice_test.go b/src/internal/fuzz/mutators_byteslice_test.go
index 56adca2537..b12ef6cbcd 100644
--- a/src/internal/fuzz/mutators_byteslice_test.go
+++ b/src/internal/fuzz/mutators_byteslice_test.go
@@ -34,12 +34,6 @@ func (mr *mockRand) uint32n(n uint32) uint32 {
 	return uint32(c) % n
 }
 
-func (mr *mockRand) exp2() int {
-	c := mr.values[mr.counter]
-	mr.counter++
-	return c
-}
-
 func (mr *mockRand) bool() bool {
 	b := mr.b
 	mr.b = !mr.b
diff --git a/src/internal/fuzz/pcg.go b/src/internal/fuzz/pcg.go
index dc07b9f5bd..b8251043f1 100644
--- a/src/internal/fuzz/pcg.go
+++ b/src/internal/fuzz/pcg.go
@@ -17,7 +17,6 @@ type mutatorRand interface {
 	uint32() uint32
 	intn(int) int
 	uint32n(uint32) uint32
-	exp2() int
 	bool() bool
 
 	save(randState, randInc *uint64)
@@ -123,11 +122,6 @@ func (r *pcgRand) uint32n(n uint32) uint32 {
 	return uint32(prod >> 32)
 }
 
-// exp2 generates n with probability 1/2^(n+1).
-func (r *pcgRand) exp2() int {
-	return bits.TrailingZeros32(r.uint32())
-}
-
 // bool generates a random bool.
 func (r *pcgRand) bool() bool {
 	return r.uint32()&1 == 0