Unlock 30% off on Manual Testing Annual Plans this Holiday Season. 
Use Code: LCMYEARENDEXCL30
Use Code: LCMYEARENDEXCL30Check icon
Copied to Clipboard!
How to use Sum method of example Package
Best Got code snippet using example.Sum
acc_test.go
Source:acc_test.go 
...13 fmt.Println("-1 negative: ", math.Signbit(-1))14 fmt.Println("AccSignBit 0: ", accsum.AccSignBit([]float64{0}))15 fmt.Println("AccSignBit -1: ", accsum.AccSignBit([]float64{-1}))16 p := []float64{1e20, -1, -1e20}17 fmt.Println("Signbit(Sum(p)):", math.Signbit(accsum.Sum(p)))18 p = []float64{1e20, -1, -1e20}19 fmt.Println("AccSignBit(p): ", accsum.AccSignBit(p))20 fmt.Println("p after AccSignBit:", p)21 // Output:22 // 0 negative: false23 // -1 negative: true24 // AccSignBit 0: false25 // AccSignBit -1: true26 // Signbit(Sum(p)): false27 // AccSignBit(p): true28}29*/30func ExampleAccSum() {31 n := 5432132 p := make([]float64, n+1)33 for i := range p {34 p[i] = float64(i)35 }36 p[0] = 1e2037 fmt.Printf("Simple: %.16e\n", accsum.Sum(p))38 fmt.Printf("AccSum: %.16e\n", accsum.AccSum(p))39 fmt.Println("Triangle: ", n*(n+1)/2)40 // Output:41 // Simple: 1.0000000000146203e+2042 // AccSum: 1.0000000000147541e+2043 // Triangle: 147541268144}45func ExampleAccSumHuge() {46 n := 5432147 p := make([]float64, n+1)48 for i := range p {49 p[i] = float64(i)50 }51 p[0] = 1e2052 fmt.Printf("Simple: %.16e\n", accsum.Sum(p))53 fmt.Printf("AccSumHuge: %.16e\n", accsum.AccSumHuge(p))54 fmt.Println("Triangle: ", n*(n+1)/2)55 // Output:56 // Simple: 1.0000000000146203e+2057 // AccSumHuge: 1.0000000000147541e+2058 // Triangle: 147541268159}60func ExampleAccSumK() {61 p := []float64{1e20, 1, 1, 1e20}62 r := accsum.AccSumK(p, 2)63 fmt.Println(r[0], "+", r[1])64 // Output:65 // 2e+20 + 266}67func ExampleDot2() {68 n := 432169 x := make([]float64, n+1)70 for i := range x {71 x[i] = float64(i)72 }73 x[0] = 1e1174 fmt.Printf("Simple: %.16e\n", accsum.Dot(x, x))75 fmt.Printf("Dot2: %.16e\n", accsum.Dot2(x, x))76 fmt.Println("Square triangle: ", n*(n+1)*(2*n+1)/6)77 // Output:78 // Simple: 1.0000000000026734e+2279 // Dot2: 1.0000000000026902e+2280 // Square triangle: 2690185896181}82func ExampleDot2Err() {83 n := 432184 x := make([]float64, n+1)85 for i := range x {86 x[i] = float64(i)87 }88 x[0] = 1e1189 fmt.Printf("Simple: %.16e\n", accsum.Dot(x, x))90 dot, err := accsum.Dot2Err(x, x)91 fmt.Printf("Dot2: %.16e\n", dot)92 fmt.Printf("Square triangle: %15d\n", n*(n+1)*(2*n+1)/6)93 fmt.Printf("Dot2Err: %15.0f\n", err)94 // Output:95 // Simple: 1.0000000000026734e+2296 // Dot2: 1.0000000000026902e+2297 // Square triangle: 2690185896198 // Dot2Err: 111022399}100func ExampleDotK() {101 n := 4321102 x := make([]float64, n+1)103 for i := range x {104 x[i] = float64(i)105 }106 x[0] = 1e11107 fmt.Printf("Simple: %.16e\n", accsum.Dot(x, x))108 fmt.Printf("DotK(K=3): %.16e\n", accsum.DotK(x, x, 2))109 fmt.Println("Square triangle: ", n*(n+1)*(2*n+1)/6)110 // Output:111 // Simple: 1.0000000000026734e+22112 // DotK(K=3): 1.0000000000026902e+22113 // Square triangle: 26901858961114}115func ExampleDownSum() {116 n := 12345117 p := make([]float64, n+1)118 for i := range p {119 p[i] = float64(i)120 }121 p[0] = 1e19122 u := accsum.DownSum(p)123 fmt.Println("Triangle: ", n*(n+1)/2)124 fmt.Printf("DownSum: %.16e\n", u)125 fmt.Printf("Next above: %.16e\n\n", math.Nextafter(u, math.Inf(1)))126 n = 54321127 p = make([]float64, n+1)128 for i := range p {129 p[i] = float64(i)130 }131 p[0] = 1e20132 u = accsum.DownSum(p)133 fmt.Println("Triangle: ", n*(n+1)/2)134 fmt.Printf("DownSum: %.16e\n", u)135 fmt.Printf("Next above: %.16e\n", math.Nextafter(u, math.Inf(1)))136 // Output:137 // Triangle: 76205685138 // DownSum: 1.0000000000076204e+19139 // Next above: 1.0000000000076206e+19140 //141 // Triangle: 1475412681142 // DownSum: 1.0000000000147541e+20143 // Next above: 1.0000000000147543e+20144}145func ExampleFastTwoSum() {146 a, b := .2, .1147 x, y := accsum.FastTwoSum(a, b)148 fmt.Printf("a: % .20f\n", a)149 fmt.Printf("b: % .20f\n", b)150 fmt.Printf("x: % .20f\n", x)151 fmt.Printf("y: % .20f\n", y)152 // Output:153 // a: 0.20000000000000001110154 // b: 0.10000000000000000555155 // x: 0.30000000000000004441156 // y: -0.00000000000000002776157}158func ExampleGenDot() {159 rand.Seed(42)160 x, y, d, c := accsum.GenDot(6, 1e31)161 fmt.Println("+x y")162 for i, xi := range x {163 fmt.Printf("%+.2e %+.2e\n", xi, y[i])164 }165 fmt.Println()166 fmt.Printf("condition: %.2e\n", c)167 fmt.Printf("dot exact: % .6f\n", d)168 fmt.Printf("Dot2(x,y): % .6f\n", accsum.Dot2(x, y))169 fmt.Printf("Dot(x,y): % .2e\n", accsum.Dot(x, y))170 // Output:171 // +x y172 // -3.91e+15 +9.38e+14173 // -5.20e+14 -7.04e+15174 // -5.64e-01 +5.61e+07175 // -3.05e+05 -4.78e+05176 // -2.34e-01 +6.26e-01177 // +1.96e+07 +4.90e+07178 //179 // condition: 5.30e+31180 // dot exact: -0.276634181 // Dot2(x,y): -0.250000182 // Dot(x,y): 3.99e+14183}184func ExampleNearSum() {185 n := 12345186 p := make([]float64, n+1)187 for i := range p {188 p[i] = float64(i)189 }190 p[0] = 1e19191 u := accsum.NearSum(p)192 fmt.Println("Triangle: ", n*(n+1)/2)193 fmt.Printf("NearSum: %.16e\n\n", u)194 n = 54321195 p = make([]float64, n+1)196 for i := range p {197 p[i] = float64(i)198 }199 p[0] = 1e20200 u = accsum.NearSum(p)201 fmt.Println("Triangle: ", n*(n+1)/2)202 fmt.Printf("NearSum: %.16e\n", u)203 // Output:204 // Triangle: 76205685205 // NearSum: 1.0000000000076206e+19206 //207 // Triangle: 1475412681208 // NearSum: 1.0000000000147541e+20209}210func ExamplePrecSum() {211 n := 54321212 p := make([]float64, n+1)213 for i := range p {214 p[i] = float64(i)215 }216 p[0] = 1e20217 s := 0.218 for _, x := range p {219 s += x220 }221 fmt.Printf("Simple: %.16e\n", s)222 fmt.Printf("PrecSum: %.16e\n", accsum.PrecSum(p, 2))223 fmt.Println("Triangle: ", n*(n+1)/2)224 // Output:225 // Simple: 1.0000000000146203e+20226 // PrecSum: 1.0000000000147541e+20227 // Triangle: 1475412681228}229func ExampleSum2() {230 n := 54321231 p := make([]float64, n+1)232 for i := range p {233 p[i] = float64(i)234 }235 p[0] = 1e20236 fmt.Printf("Simple: %.16e\n", accsum.Sum(p))237 fmt.Printf("Sum2: %.16e\n", accsum.Sum2(p))238 fmt.Println("Triangle: ", n*(n+1)/2)239 // Output:240 // Simple: 1.0000000000146203e+20241 // Sum2: 1.0000000000147541e+20242 // Triangle: 1475412681243}244func ExampleSumK() {245 n := 54321246 p := make([]float64, n+1)247 for i := range p {248 p[i] = float64(i)249 }250 p[0] = 1e20251 fmt.Printf("Simple: %.16e\n", accsum.Sum(p))252 fmt.Printf("SumK: %.16e\n", accsum.SumK(p, 2))253 fmt.Println("Triangle: ", n*(n+1)/2)254 // Output:255 // Simple: 1.0000000000146203e+20256 // SumK: 1.0000000000147541e+20257 // Triangle: 1475412681258}259func ExampleSumKVert() {260 n := 54321261 p := make([]float64, n+1)262 for i := range p {263 p[i] = float64(i)264 }265 p[0] = 1e20266 fmt.Printf("Simple: %.16e\n", accsum.Sum(p))267 fmt.Printf("SumKVert: %.16e\n", accsum.SumKVert(p, 2))268 fmt.Println("Triangle: ", n*(n+1)/2)269 // Output:270 // Simple: 1.0000000000146203e+20271 // SumKVert: 1.0000000000147541e+20272 // Triangle: 1475412681273}274func ExampleTwoProduct() {275 a := 1e10 + 1276 b := 1e6 + 1277 fmt.Println(accsum.TwoProduct(a, b))278 // Output: 1.0000010001e+16 1279}280func ExampleTwoSum() {281 a, b := .1, .2282 x, y := accsum.TwoSum(a, b)283 fmt.Printf("a: % .20f\n", a)284 fmt.Printf("b: % .20f\n", b)285 fmt.Printf("x: % .20f\n", x)286 fmt.Printf("y: % .20f\n", y)287 // Output:288 // a: 0.10000000000000000555289 // b: 0.20000000000000001110290 // x: 0.30000000000000004441291 // y: -0.00000000000000002776292}293func ExampleUpSum() {294 n := 12345295 p := make([]float64, n+1)296 for i := range p {297 p[i] = float64(i)298 }299 p[0] = 1e19300 u := accsum.UpSum(p)301 fmt.Println("Triangle: ", n*(n+1)/2)302 fmt.Printf("UpSum: %.16e\n", u)303 fmt.Printf("Next lower: %.16e\n\n", math.Nextafter(u, math.Inf(-1)))304 n = 54321305 p = make([]float64, n+1)306 for i := range p {307 p[i] = float64(i)308 }309 p[0] = 1e20310 u = accsum.UpSum(p)311 fmt.Println("Triangle: ", n*(n+1)/2)312 fmt.Printf("UpSum: %.16e\n", u)313 fmt.Printf("Next lower: %.16e\n", math.Nextafter(u, math.Inf(-1)))314 // Output:315 // Triangle: 76205685316 // UpSum: 1.0000000000076206e+19317 // Next lower: 1.0000000000076204e+19318 //319 // Triangle: 1475412681320 // UpSum: 1.0000000000147543e+20321 // Next lower: 1.0000000000147541e+20322}...
digest_test.go
Source:digest_test.go
...27 </div>28 </body>29</html>30`31 expectedExampleSum = `[DOCTYPE:html-][:html-[:head-[:title-][:meta-:charset][:meta-:content(text/html; charset=utf-8),:http-equiv(Content-type)][:meta-:content(width=device-width, initial-scale=1),:name(viewport)][:style-:type(text/css)]][:body-[:div-[:h1-][:p-][:p-[:a-:href(/path/to/link-to1)]][:p-[:a-:href(/path/to/link-to2)]]]]]`32 expectedExampleSum32 = 99307048133)34func getSumRawText(rootNode *html.Node) (string, error) {35 buf := &bytes.Buffer{}36 c := &ctx{37 writer: buf,38 ignoreFunc: nopIgnoreFunc,39 }40 err := c.sum(rootNode)41 if err != nil {42 return "", nil43 }44 return buf.String(), nil45}46func getCrc32Sum(rootNode *html.Node) (uint32, error) {47 h := NewHash(func() hash.Hash {48 return crc32.NewIEEE()49 })50 crcSum, err := h.Sum(rootNode)51 if err != nil {52 return 0, err53 }54 crcSum32 := uint32(crcSum[0])<<24 | uint32(crcSum[1])<<16 | uint32(crcSum[2])<<8 | uint32(crcSum[3])55 return crcSum32, nil56}57func TestRawSum(t *testing.T) {58 t.Run("Simple", func(t *testing.T) {59 rootNode, err := html.Parse(strings.NewReader(exampleHTML))60 if err != nil {61 t.Fatal(err)62 }63 rawSum, err := getSumRawText(rootNode)64 if err != nil {65 t.Fatal(err)66 }67 if rawSum != expectedExampleSum {68 t.Errorf("Unexpected sum: %s", rawSum)69 }70 })71 t.Run("Modified", func(t *testing.T) {72 t.Run("NonBroken", func(t *testing.T) {73 r := strings.NewReplacer(`href=`, `HREF=`, `<h1>`, `<H1 title="hello">`)74 rootNode, err := html.Parse(strings.NewReader(r.Replace(exampleHTML)))75 if err != nil {76 t.Fatal(err)77 }78 rawSum, err := getSumRawText(rootNode)79 if err != nil {80 t.Fatal(err)81 }82 if rawSum != expectedExampleSum {83 t.Errorf("Unexpected sum: %s", rawSum)84 }85 })86 t.Run("Broken", func(t *testing.T) {87 r := strings.NewReplacer(`href="/path/to/link-to2"`, `HREF="/path/to/link-to3"`, `<h1>`, `<H2>`)88 rootNode, err := html.Parse(strings.NewReader(r.Replace(exampleHTML)))89 if err != nil {90 t.Fatal(err)91 }92 rawSum, err := getSumRawText(rootNode)93 if err != nil {94 t.Fatal(err)95 }96 if rawSum == expectedExampleSum {97 t.Errorf("Unexpected sum: %s", rawSum)98 }99 t.Logf("raw: %s", rawSum)100 })101 })102}103func TestDigest(t *testing.T) {104 t.Run("Reverse", func(t *testing.T) {105 rootNode, err := html.Parse(strings.NewReader(exampleHTML))106 if err != nil {107 t.Fatal(err)108 }109 rawSum, err := getSumRawText(rootNode)110 if err != nil {111 t.Fatal(err)112 }113 crcSum32, err := getCrc32Sum(rootNode)114 if err != nil {115 t.Fatal(err)116 }117 if recalced := crc32.ChecksumIEEE([]byte(rawSum)); crcSum32 != recalced {118 t.Errorf("Unexpected sum: %d, expected: %d", crcSum32, recalced)119 }120 })121 t.Run("Simple", func(t *testing.T) {122 rootNode, err := html.Parse(strings.NewReader(exampleHTML))123 if err != nil {124 t.Fatal(err)125 }126 crcSum32, err := getCrc32Sum(rootNode)127 if err != nil {128 t.Fatal(err)129 }130 if crcSum32 != expectedExampleSum32 {131 t.Errorf("Unexpected sum: %d", crcSum32)132 }133 })134 t.Run("Modified", func(t *testing.T) {135 t.Run("NonBroken", func(t *testing.T) {136 r := strings.NewReplacer(`href=`, `HREF=`, `<h1>`, `<H1 title="hello">`)137 rootNode, err := html.Parse(strings.NewReader(r.Replace(exampleHTML)))138 if err != nil {139 t.Fatal(err)140 }141 crcSum32, err := getCrc32Sum(rootNode)142 if err != nil {143 t.Fatal(err)144 }145 if crcSum32 != expectedExampleSum32 {146 t.Errorf("Unexpected sum: %d", crcSum32)147 }148 })149 t.Run("Broken", func(t *testing.T) {150 r := strings.NewReplacer(`href="/path/to/link-to2"`, `HREF="/path/to/link-to3"`, `<h1>`, `<H2>`)151 rootNode, err := html.Parse(strings.NewReader(r.Replace(exampleHTML)))152 if err != nil {153 t.Fatal(err)154 }155 crcSum32, err := getCrc32Sum(rootNode)156 if err != nil {157 t.Fatal(err)158 }159 if crcSum32 == expectedExampleSum32 {160 t.Errorf("Unexpected sum: %d", crcSum32)161 }162 t.Logf("crc32: %d", crcSum32)163 })164 })165}...
examples_test.go
Source:examples_test.go
...15 "fmt"16 "os"17 "os/exec"18)19func ExampleWhatIsAGeneric_SumInt() {20 fmt.Println(SumInt(1, 2, 3))21 // Output: 622}23func ExampleWhatIsAGeneric_EmptyInterface() {24 print := func(i interface{}, err error) {25 if err != nil {26 fmt.Println(err)27 } else {28 fmt.Println(i)29 }30 }31 print(SumInterface(int64(1), int64(2), int64(3)))32 print(SumInterface(uint32(1), int(2), uint32(3)))33 print(SumInterface(float64(1), int(2), uint32(3)))34 print(SumInterface(uint32(1), uint32(2), uint32(3)))35 // Output:36 // 637 // int is not supported38 // float64 is not supported39 // 640}41func ExampleWhatIsAGeneric_MultipleFunctions() {42 fmt.Println(SumInt64(1, 2, 3))43 fmt.Println(SumUint32(1, 2, 3))44 // Output:45 // 646 // 647}48func ExampleSyntax() {49 fmt.Println(SumTint(1, 2, 3))50 // Output: 651}52func ExampleConstraints() {53 fmt.Println(SumTintOrint64(1, 2, 3))54 fmt.Println(SumTintOrint64(int64(1), 2, 3))55 // Output:56 // 657 // 658}59func ExampleTheAnyConstraint() {60 cmd := exec.Command(61 "go",62 "build",63 /*64 The `go build` command below uses the flag `-tags invalid`. This65 flag instructs Go to include the file66 `./examples/04-the-any-constraint/main.go` in the compilation.67 Normally the file has a build constraint that prevents it from being68 considered to prevent:69 * Dev tools (ex. an IDE such as VS Code) from constantly warning70 this file is in error71 * a failed `go test ./...` command from the root of this72 repository73 However, the entire point of this example is to demonstrate that74 failure, so the file needs to be "activated."75 */76 "-tags", "invalid",77 "./examples/04-the-any-constraint/",78 )79 cmd.Stdout = os.Stdout80 cmd.Stderr = os.Stdout81 fmt.Println(cmd.Run())82 // Output:83 // # go-generics-the-hard-way/03-getting-started/examples/04-the-any-constraint84 // examples/04-the-any-constraint/main.go:30:3: invalid operation: operator + not defined on sum (variable of type T constrained by any)85 // exit status 286}87// SumInt returns the sum of the provided arguments.88func SumInt(args ...int) int {89 var sum int90 for i := 0; i < len(args); i++ {91 sum += args[i]92 }93 return sum94}95// SumInterface returns the sum of the provided arguments.96//97// An error is returned if the arguments are not of a supported98// type or of mixed types.99func SumInterface(args ...interface{}) (interface{}, error) {100 var sum interface{}101 for i := 0; i < len(args); i++ {102 switch a := args[i].(type) {103 case int64:104 if sum == nil {105 sum = int64(0)106 }107 tsum, ok := sum.(int64)108 if !ok {109 return nil, fmt.Errorf("previous arg was not an int64")110 }111 tsum += a112 sum = tsum113 case uint32:114 if sum == nil {115 sum = uint32(0)116 }117 tsum, ok := sum.(uint32)118 if !ok {119 return nil, fmt.Errorf("previous arg was not an uint32")120 }121 tsum += a122 sum = tsum123 default:124 return nil, fmt.Errorf("%T is not supported", args[i])125 }126 }127 return sum, nil128}129// SumInt64 returns the sum of the provided int64 values.130func SumInt64(args ...int64) int64 {131 var sum int64132 for i := 0; i < len(args); i++ {133 sum += args[i]134 }135 return sum136}137// SumUint32 returns the sum of the provided uint32 values.138func SumUint32(args ...uint32) uint32 {139 var sum uint32140 for i := 0; i < len(args); i++ {141 sum += args[i]142 }143 return sum144}145// SumTint returns the sum of the provided arguments.146func SumTint[T int](args ...T) T {147 var sum T148 for i := 0; i < len(args); i++ {149 sum += args[i]150 }151 return sum152}153// SumTintOrint64 returns the sum of the provided arguments.154func SumTintOrint64[T int | int64](args ...T) T {155 var sum T156 for i := 0; i < len(args); i++ {157 sum += args[i]158 }159 return sum160}...
Sum
Using AI Code Generation
1import "fmt"2type Example struct {3}4func (e *Example) Sum() int {5}6func main() {7 e := Example{10, 20}8 fmt.Println(e.Sum())9}
Automation Testing Tutorials
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run Got automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
