benchcmpvsnil_test.go

package benchcmpvsnil

import (
	"testing"
)

func BenchmarkNilPtrNil(b *testing.B) {
	for i := 0; i < b.N; i++ {
		isNilPtr(nil)
	}
}
func BenchmarkNilPtrVal(b *testing.B) {
	x := int32(3)
	for i := 0; i < b.N; i++ {
		isNilPtr(&x)
	}
}

func isNilPtr(p *int32) bool {
	return (p != nil)
}

func BenchmarkZeroCmpZero(b *testing.B) {
	for i := 0; i < b.N; i++ {
		isZeroVal(0)
	}
}
func BenchmarkZeroCmpVal(b *testing.B) {
	x := int32(3)
	for i := 0; i < b.N; i++ {
		isZeroVal(x)
	}
}

func isZeroVal(n int32) bool {
	return (n > 0)
}

result.txt

PASS
BenchmarkNilPtrNil-4  	2000000000	         0.73 ns/op	       0 B/op	       0 allocs/op
BenchmarkNilPtrVal-4  	2000000000	         0.65 ns/op	       0 B/op	       0 allocs/op
BenchmarkZeroCmpZero-4	2000000000	         0.54 ns/op	       0 B/op	       0 allocs/op
BenchmarkZeroCmpVal-4 	2000000000	         0.47 ns/op	       0 B/op	       0 allocs/op
ok  	github.com/dotabuff/benchcmpvsnil	5.008s