// +build amd64 // Code generated by Makefile, DO NOT EDIT. /* * Copyright 2021 ByteDance Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package {{PACKAGE}} import ( `strconv` `testing` `fmt` `github.com/stretchr/testify/assert` ) func TestFastInt_IntToString(t *testing.T) { var buf [32]byte assert.Equal(t, "0" , string(buf[:i64toa(&buf[0], 0)])) assert.Equal(t, "1" , string(buf[:i64toa(&buf[0], 1)])) assert.Equal(t, "12" , string(buf[:i64toa(&buf[0], 12)])) assert.Equal(t, "123" , string(buf[:i64toa(&buf[0], 123)])) assert.Equal(t, "1234" , string(buf[:i64toa(&buf[0], 1234)])) assert.Equal(t, "12345" , string(buf[:i64toa(&buf[0], 12345)])) assert.Equal(t, "123456" , string(buf[:i64toa(&buf[0], 123456)])) assert.Equal(t, "1234567" , string(buf[:i64toa(&buf[0], 1234567)])) assert.Equal(t, "12345678" , string(buf[:i64toa(&buf[0], 12345678)])) assert.Equal(t, "123456789" , string(buf[:i64toa(&buf[0], 123456789)])) assert.Equal(t, "1234567890" , string(buf[:i64toa(&buf[0], 1234567890)])) assert.Equal(t, "12345678901" , string(buf[:i64toa(&buf[0], 12345678901)])) assert.Equal(t, "123456789012" , string(buf[:i64toa(&buf[0], 123456789012)])) assert.Equal(t, "1234567890123" , string(buf[:i64toa(&buf[0], 1234567890123)])) assert.Equal(t, "12345678901234" , string(buf[:i64toa(&buf[0], 12345678901234)])) assert.Equal(t, "123456789012345" , string(buf[:i64toa(&buf[0], 123456789012345)])) assert.Equal(t, "1234567890123456" , string(buf[:i64toa(&buf[0], 1234567890123456)])) assert.Equal(t, "12345678901234567" , string(buf[:i64toa(&buf[0], 12345678901234567)])) assert.Equal(t, "123456789012345678" , string(buf[:i64toa(&buf[0], 123456789012345678)])) assert.Equal(t, "1234567890123456789" , string(buf[:i64toa(&buf[0], 1234567890123456789)])) assert.Equal(t, "9223372036854775807" , string(buf[:i64toa(&buf[0], 9223372036854775807)])) assert.Equal(t, "-1" , string(buf[:i64toa(&buf[0], -1)])) assert.Equal(t, "-12" , string(buf[:i64toa(&buf[0], -12)])) assert.Equal(t, "-123" , string(buf[:i64toa(&buf[0], -123)])) assert.Equal(t, "-1234" , string(buf[:i64toa(&buf[0], -1234)])) assert.Equal(t, "-12345" , string(buf[:i64toa(&buf[0], -12345)])) assert.Equal(t, "-123456" , string(buf[:i64toa(&buf[0], -123456)])) assert.Equal(t, "-1234567" , string(buf[:i64toa(&buf[0], -1234567)])) assert.Equal(t, "-12345678" , string(buf[:i64toa(&buf[0], -12345678)])) assert.Equal(t, "-123456789" , string(buf[:i64toa(&buf[0], -123456789)])) assert.Equal(t, "-1234567890" , string(buf[:i64toa(&buf[0], -1234567890)])) assert.Equal(t, "-12345678901" , string(buf[:i64toa(&buf[0], -12345678901)])) assert.Equal(t, "-123456789012" , string(buf[:i64toa(&buf[0], -123456789012)])) assert.Equal(t, "-1234567890123" , string(buf[:i64toa(&buf[0], -1234567890123)])) assert.Equal(t, "-12345678901234" , string(buf[:i64toa(&buf[0], -12345678901234)])) assert.Equal(t, "-123456789012345" , string(buf[:i64toa(&buf[0], -123456789012345)])) assert.Equal(t, "-1234567890123456" , string(buf[:i64toa(&buf[0], -1234567890123456)])) assert.Equal(t, "-12345678901234567" , string(buf[:i64toa(&buf[0], -12345678901234567)])) assert.Equal(t, "-123456789012345678" , string(buf[:i64toa(&buf[0], -123456789012345678)])) assert.Equal(t, "-1234567890123456789" , string(buf[:i64toa(&buf[0], -1234567890123456789)])) assert.Equal(t, "-9223372036854775808" , string(buf[:i64toa(&buf[0], -9223372036854775808)])) } func TestFastInt_UintToString(t *testing.T) { var buf [32]byte assert.Equal(t, "0" , string(buf[:u64toa(&buf[0], 0)])) assert.Equal(t, "1" , string(buf[:u64toa(&buf[0], 1)])) assert.Equal(t, "12" , string(buf[:u64toa(&buf[0], 12)])) assert.Equal(t, "123" , string(buf[:u64toa(&buf[0], 123)])) assert.Equal(t, "1234" , string(buf[:u64toa(&buf[0], 1234)])) assert.Equal(t, "12345" , string(buf[:u64toa(&buf[0], 12345)])) assert.Equal(t, "123456" , string(buf[:u64toa(&buf[0], 123456)])) assert.Equal(t, "1234567" , string(buf[:u64toa(&buf[0], 1234567)])) assert.Equal(t, "12345678" , string(buf[:u64toa(&buf[0], 12345678)])) assert.Equal(t, "123456789" , string(buf[:u64toa(&buf[0], 123456789)])) assert.Equal(t, "1234567890" , string(buf[:u64toa(&buf[0], 1234567890)])) assert.Equal(t, "12345678901" , string(buf[:u64toa(&buf[0], 12345678901)])) assert.Equal(t, "123456789012" , string(buf[:u64toa(&buf[0], 123456789012)])) assert.Equal(t, "1234567890123" , string(buf[:u64toa(&buf[0], 1234567890123)])) assert.Equal(t, "12345678901234" , string(buf[:u64toa(&buf[0], 12345678901234)])) assert.Equal(t, "123456789012345" , string(buf[:u64toa(&buf[0], 123456789012345)])) assert.Equal(t, "1234567890123456" , string(buf[:u64toa(&buf[0], 1234567890123456)])) assert.Equal(t, "12345678901234567" , string(buf[:u64toa(&buf[0], 12345678901234567)])) assert.Equal(t, "123456789012345678" , string(buf[:u64toa(&buf[0], 123456789012345678)])) assert.Equal(t, "1234567890123456789" , string(buf[:u64toa(&buf[0], 1234567890123456789)])) assert.Equal(t, "12345678901234567890" , string(buf[:u64toa(&buf[0], 12345678901234567890)])) assert.Equal(t, "18446744073709551615" , string(buf[:u64toa(&buf[0], 18446744073709551615)])) } func BenchmarkFastInt_IntToString(b *testing.B) { benchmarks := []struct { name string test func(*testing.B) }{{ name: "StdLib-Positive", test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { strconv.AppendInt(buf[:0], int64(i), 10) }}, }, { name: "StdLib-Negative", test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { strconv.AppendInt(buf[:0], -int64(i), 10) }}, }, { name: "FastInt-Positive", test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { i64toa(&buf[0], int64(i)) }}, }, { name: "FastInt-Negative", test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { i64toa(&buf[0], -int64(i)) }}, }} for _, bm := range benchmarks { b.Run(bm.name, bm.test) } } type utoaBench struct { name string num uint64 } func BenchmarkFastInt_UintToString(b *testing.B) { maxUint := "18446744073709551615" benchs := make([]utoaBench, len(maxUint) + 1) benchs[0].name = "Zero" benchs[0].num = 0 for i := 1; i <= len(maxUint); i++ { benchs[i].name = strconv.FormatInt(int64(i), 10) + "-Digs" benchs[i].num, _ = strconv.ParseUint(string(maxUint[:i]), 10, 64) } for _, t := range(benchs) { benchmarks := []struct { name string test func(*testing.B) }{{ name: "StdLib", test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { strconv.AppendUint(buf[:0], t.num, 10) }}, }, { name: "FastInt", test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { u64toa(&buf[0], t.num) }}, }} for _, bm := range benchmarks { name := fmt.Sprintf("%s_%s", bm.name, t.name) b.Run(name, bm.test) } } }