Yet another natural sort, with 100% test coverage and a benchmark. It does not
allocate memory, doesn't depend on package sort and hence doesn't depend on
reflect. It is optimized for speed.
On Go 1.18.3.
$ go test -bench=. -cpu 1
goos: linux
goarch: amd64
pkg: github.com/maruel/natural
cpu: Intel(R) Core(TM) i7-10700 CPU @ 2.90GHz
BenchmarkLessDigitsTwoGroupsNative 331287298 3.597 ns/op 0 B/op 0 allocs/op
BenchmarkLessDigitsTwoGroups 32479050 36.55 ns/op 0 B/op 0 allocs/op
BenchmarkLessStringOnly 157775884 7.603 ns/op 0 B/op 0 allocs/op
BenchmarkLessDigitsOnly 69210796 17.52 ns/op 0 B/op 0 allocs/op
BenchmarkLess10Blocks 6331066 190.8 ns/op 0 B/op 0 allocs/op
On a Raspberry Pi 3:
$ go test -bench=. -cpu 1
goos: linux
goarch: arm
pkg: github.com/maruel/natural
BenchmarkLessDigitsTwoGroupsNative 14181789 86.57 ns/op 0 B/op 0 allocs/op
BenchmarkLessDigitsTwoGroups 1600195 748.9 ns/op 0 B/op 0 allocs/op
BenchmarkLessStringOnly 8286034 142.3 ns/op 0 B/op 0 allocs/op
BenchmarkLessDigitsOnly 3653055 331.4 ns/op 0 B/op 0 allocs/op
BenchmarkLess10Blocks 310687 3838 ns/op 0 B/op 0 allocs/op
Coverage:
$ go test -cover
PASS
coverage: 100.0% of statements
ok github.com/maruel/natural 0.012s