emptycase

README

Switch useless check

Checking switch performance:

• useless check with nop
• skipping check and relying on default
• returning default in the check

Whatever the choice, the switch has no noticeable variation of performance.

src>go test -bench=. ./switch

Results

go version go1.12 windows/amd64

BenchmarkCheckUselessCase-4     2000000000               0.43 ns/op
BenchmarkReturnDefault-4        2000000000               0.53 ns/op
BenchmarkNoUselessCase-4        2000000000               0.43 ns/op
PASS

Documentation

Index

• func CheckNoUselessCase(a int) int
• func CheckReturnDefault(a int) int
• func CheckUselessCase(a int) int

Functions

func CheckNoUselessCase

func CheckNoUselessCase(a int) int

func CheckReturnDefault

func CheckReturnDefault(a int) int

func CheckUselessCase

func CheckUselessCase(a int) int