How to use bisect method of bisect Package

Best Syzkaller code snippet using bisect.bisect

commits.go

Source:commits.go

...20var (21	pipeSetCache = make(map[pipeSetCacheKey][][]*graph.Pipe)22	mutex        deadlock.Mutex23)24type bisectBounds struct {25	newIndex int26	oldIndex int27}28func GetCommitListDisplayStrings(29	commits []*models.Commit,30	fullDescription bool,31	cherryPickedCommitShaSet *set.Set[string],32	diffName string,33	timeFormat string,34	parseEmoji bool,35	selectedCommitSha string,36	startIdx int,37	length int,38	showGraph bool,39	bisectInfo *git_commands.BisectInfo,40) [][]string {41	mutex.Lock()42	defer mutex.Unlock()43	if len(commits) == 0 {44		return nil45	}46	if startIdx > len(commits) {47		return nil48	}49	end := utils.Min(startIdx+length, len(commits))50	// this is where my non-TODO commits begin51	rebaseOffset := utils.Min(indexOfFirstNonTODOCommit(commits), end)52	filteredCommits := commits[startIdx:end]53	bisectBounds := getbisectBounds(commits, bisectInfo)54	// function expects to be passed the index of the commit in terms of the `commits` slice55	var getGraphLine func(int) string56	if showGraph {57		// this is where the graph begins (may be beyond the TODO commits depending on startIdx,58		// but we'll never include TODO commits as part of the graph because it'll be messy)59		graphOffset := utils.Max(startIdx, rebaseOffset)60		pipeSets := loadPipesets(commits[rebaseOffset:])61		pipeSetOffset := utils.Max(startIdx-rebaseOffset, 0)62		graphPipeSets := pipeSets[pipeSetOffset:utils.Max(end-rebaseOffset, 0)]63		graphCommits := commits[graphOffset:end]64		graphLines := graph.RenderAux(65			graphPipeSets,66			graphCommits,67			selectedCommitSha,68		)69		getGraphLine = func(idx int) string {70			if idx >= graphOffset {71				return graphLines[idx-graphOffset]72			} else {73				return ""74			}75		}76	} else {77		getGraphLine = func(idx int) string { return "" }78	}79	lines := make([][]string, 0, len(filteredCommits))80	var bisectStatus BisectStatus81	for i, commit := range filteredCommits {82		unfilteredIdx := i + startIdx83		bisectStatus = getBisectStatus(unfilteredIdx, commit.Sha, bisectInfo, bisectBounds)84		lines = append(lines, displayCommit(85			commit,86			cherryPickedCommitShaSet,87			diffName,88			timeFormat,89			parseEmoji,90			getGraphLine(unfilteredIdx),91			fullDescription,92			bisectStatus,93			bisectInfo,94		))95	}96	return lines97}98func getbisectBounds(commits []*models.Commit, bisectInfo *git_commands.BisectInfo) *bisectBounds {99	if !bisectInfo.Bisecting() {100		return nil101	}102	bisectBounds := &bisectBounds{}103	for i, commit := range commits {104		if commit.Sha == bisectInfo.GetNewSha() {105			bisectBounds.newIndex = i106		}107		status, ok := bisectInfo.Status(commit.Sha)108		if ok && status == git_commands.BisectStatusOld {109			bisectBounds.oldIndex = i110			return bisectBounds111		}112	}113	// shouldn't land here114	return nil115}116// precondition: slice is not empty117func indexOfFirstNonTODOCommit(commits []*models.Commit) int {118	for i, commit := range commits {119		if !commit.IsTODO() {120			return i121		}122	}123	// shouldn't land here124	return 0125}126func loadPipesets(commits []*models.Commit) [][]*graph.Pipe {127	// given that our cache key is a commit sha and a commit count, it's very important that we don't actually try to render pipes128	// when dealing with things like filtered commits.129	cacheKey := pipeSetCacheKey{130		commitSha:   commits[0].Sha,131		commitCount: len(commits),132	}133	pipeSets, ok := pipeSetCache[cacheKey]134	if !ok {135		// pipe sets are unique to a commit head. and a commit count. Sometimes we haven't loaded everything for that.136		// so let's just cache it based on that.137		getStyle := func(commit *models.Commit) style.TextStyle {138			return authors.AuthorStyle(commit.AuthorName)139		}140		pipeSets = graph.GetPipeSets(commits, getStyle)141		pipeSetCache[cacheKey] = pipeSets142	}143	return pipeSets144}145// similar to the git_commands.BisectStatus but more gui-focused146type BisectStatus int147const (148	BisectStatusNone BisectStatus = iota149	BisectStatusOld150	BisectStatusNew151	BisectStatusSkipped152	// adding candidate here which isn't present in the commands package because153	// we need to actually go through the commits to get this info154	BisectStatusCandidate155	// also adding this156	BisectStatusCurrent157)158func getBisectStatus(index int, commitSha string, bisectInfo *git_commands.BisectInfo, bisectBounds *bisectBounds) BisectStatus {159	if !bisectInfo.Started() {160		return BisectStatusNone161	}162	if bisectInfo.GetCurrentSha() == commitSha {163		return BisectStatusCurrent164	}165	status, ok := bisectInfo.Status(commitSha)166	if ok {167		switch status {168		case git_commands.BisectStatusNew:169			return BisectStatusNew170		case git_commands.BisectStatusOld:171			return BisectStatusOld172		case git_commands.BisectStatusSkipped:173			return BisectStatusSkipped174		}175	} else {176		if bisectBounds != nil && index >= bisectBounds.newIndex && index <= bisectBounds.oldIndex {177			return BisectStatusCandidate178		} else {179			return BisectStatusNone180		}181	}182	// should never land here183	return BisectStatusNone184}185func getBisectStatusText(bisectStatus BisectStatus, bisectInfo *git_commands.BisectInfo) string {186	if bisectStatus == BisectStatusNone {187		return ""188	}189	style := getBisectStatusColor(bisectStatus)190	switch bisectStatus {191	case BisectStatusNew:192		return style.Sprintf("<-- " + bisectInfo.NewTerm())193	case BisectStatusOld:194		return style.Sprintf("<-- " + bisectInfo.OldTerm())195	case BisectStatusCurrent:196		// TODO: i18n197		return style.Sprintf("<-- current")198	case BisectStatusSkipped:199		return style.Sprintf("<-- skipped")200	case BisectStatusCandidate:201		return style.Sprintf("?")202	case BisectStatusNone:203		return ""204	}205	return ""206}207func displayCommit(208	commit *models.Commit,209	cherryPickedCommitShaSet *set.Set[string],210	diffName string,211	timeFormat string,212	parseEmoji bool,213	graphLine string,214	fullDescription bool,215	bisectStatus BisectStatus,216	bisectInfo *git_commands.BisectInfo,217) []string {218	shaColor := getShaColor(commit, diffName, cherryPickedCommitShaSet, bisectStatus, bisectInfo)219	bisectString := getBisectStatusText(bisectStatus, bisectInfo)220	actionString := ""221	if commit.Action != "" {222		actionString = actionColorMap(commit.Action).Sprint(commit.Action) + " "223	}224	tagString := ""225	if fullDescription {226		if commit.ExtraInfo != "" {227			tagString = style.FgMagenta.SetBold().Sprint(commit.ExtraInfo) + " "228		}229	} else {230		if len(commit.Tags) > 0 {231			tagString = theme.DiffTerminalColor.SetBold().Sprint(strings.Join(commit.Tags, " ")) + " "232		}233	}234	name := commit.Name235	if parseEmoji {236		name = emoji.Sprint(name)237	}238	authorFunc := authors.ShortAuthor239	if fullDescription {240		authorFunc = authors.LongAuthor241	}242	cols := make([]string, 0, 7)243	if icons.IsIconEnabled() {244		cols = append(cols, shaColor.Sprint(icons.IconForCommit(commit)))245	}246	cols = append(cols, shaColor.Sprint(commit.ShortSha()))247	cols = append(cols, bisectString)248	if fullDescription {249		cols = append(cols, style.FgBlue.Sprint(utils.UnixToDate(commit.UnixTimestamp, timeFormat)))250	}251	cols = append(252		cols,253		actionString,254		authorFunc(commit.AuthorName),255		graphLine+tagString+theme.DefaultTextColor.Sprint(name),256	)257	return cols258}259func getBisectStatusColor(status BisectStatus) style.TextStyle {260	switch status {261	case BisectStatusNone:262		return style.FgBlack263	case BisectStatusNew:264		return style.FgRed265	case BisectStatusOld:266		return style.FgGreen267	case BisectStatusSkipped:268		return style.FgYellow269	case BisectStatusCurrent:270		return style.FgMagenta271	case BisectStatusCandidate:272		return style.FgBlue273	}274	// shouldn't land here275	return style.FgWhite276}277func getShaColor(278	commit *models.Commit,279	diffName string,280	cherryPickedCommitShaSet *set.Set[string],281	bisectStatus BisectStatus,282	bisectInfo *git_commands.BisectInfo,283) style.TextStyle {284	if bisectInfo.Started() {285		return getBisectStatusColor(bisectStatus)286	}287	diffed := commit.Sha == diffName288	shaColor := theme.DefaultTextColor289	switch commit.Status {290	case "unpushed":291		shaColor = style.FgRed292	case "pushed":293		shaColor = style.FgYellow294	case "merged":295		shaColor = style.FgGreen296	case "rebasing":297		shaColor = style.FgBlue298	case "reflog":299		shaColor = style.FgBlue...

bisect_controller.go

Source:bisect_controller.go

...41		return self.openStartBisectMenu(info, commit)42	}43}44func (self *BisectController) openMidBisectMenu(info *git_commands.BisectInfo, commit *models.Commit) error {45	// if there is not yet a 'current' bisect commit, or if we have46	// selected the current commit, we need to jump to the next 'current' commit47	// after we perform a bisect action. The reason we don't unconditionally jump48	// is that sometimes the user will want to go and mark a few commits as skipped49	// in a row and they wouldn't want to be jumped back to the current bisect50	// commit each time.51	// Originally we were allowing the user to, from the bisect menu, select whether52	// they were talking about the selected commit or the current bisect commit,53	// and that was a bit confusing (and required extra keypresses).54	selectCurrentAfter := info.GetCurrentSha() == "" || info.GetCurrentSha() == commit.Sha55	// we need to wait to reselect if our bisect commits aren't ancestors of our 'start'56	// ref, because we'll be reloading our commits in that case.57	waitToReselect := selectCurrentAfter && !self.git.Bisect.ReachableFromStart(info)58	menuItems := []*types.MenuItem{59		{60			Label: fmt.Sprintf(self.c.Tr.Bisect.Mark, commit.ShortSha(), info.NewTerm()),61			OnPress: func() error {62				self.c.LogAction(self.c.Tr.Actions.BisectMark)63				if err := self.git.Bisect.Mark(commit.Sha, info.NewTerm()); err != nil {64					return self.c.Error(err)65				}66				return self.afterMark(selectCurrentAfter, waitToReselect)67			},68			Key: 'b',69		},...

bisect_state.go

Source:bisect_state.go

1package bisect2import (3	"math/rand"4	"sync"5)6type smartRev struct {7	Rev    string8	Cancel chan interface{}9	state  *BisectState10}11func (s *smartRev) Good() {12	s.state.markAsGood(s.Rev)13}14func (s *smartRev) Bad() {15	s.state.markAsBad(s.Rev)16}17type BisectState struct {18	revs []string // immutable19	indexes map[string]int20	good int21	bad  int22	// bisect tracker23	bisectSteps     []int24	bisectIteration int25	activeListeners map[int]*smartRev26	mu sync.RWMutex27	Done chan string28}29func NewBisectState(revs []string) *BisectState {30	state := &BisectState{31		revs:            revs,32		good:            len(revs) - 1,33		indexes:         make(map[string]int, len(revs)),34		bisectSteps:     make([]int, len(revs)),35		activeListeners: make(map[int]*smartRev, len(revs)),36		Done:            make(chan string),37	}38	state.initIndexesTable()39	state.initBisectSteps()40	return state41}42func (b *BisectState) initIndexesTable() {43	for i, rev := range b.revs {44		b.indexes[rev] = i45	}46}47func (b *BisectState) initBisectSteps() {48	for i := range b.bisectSteps {49		b.bisectSteps[i] = i50	}51	// Fully random52	rand.Seed(1)53	rand.Shuffle(len(b.bisectSteps), func(i, j int) {54		b.bisectSteps[i], b.bisectSteps[j] = b.bisectSteps[j], b.bisectSteps[i]55	})56}57func (b *BisectState) Next() *smartRev {58	b.mu.Lock()59	defer b.mu.Unlock()60	for ; b.bisectIteration < len(b.bisectSteps); b.bisectIteration++ {61		step := b.bisectSteps[b.bisectIteration]62		if step >= b.bad && step <= b.good {63			b.bisectIteration++64			rev := &smartRev{65				Rev:    b.revs[step],66				Cancel: make(chan interface{}),67				state:  b,68			}69			b.activeListeners[step] = rev70			return rev71		}72	}73	return nil74}75func (b *BisectState) getIndex(rev string) int {76	b.mu.RLock()77	defer b.mu.RUnlock()78	return b.indexes[rev]79}80func (b *BisectState) markAsGood(rev string) error {81	i := b.getIndex(rev)82	b.mu.Lock()83	defer b.mu.Unlock()84	if i >= b.good {85		return nil86	}87	b.good = i88	defer b.notifyActiveListeners()89	return nil90}91func (b *BisectState) markAsBad(rev string) error {92	i := b.getIndex(rev)93	b.mu.Lock()94	defer b.mu.Unlock()95	if i <= b.bad {96		return nil97	}98	b.bad = i99	defer b.notifyActiveListeners()100	return nil101}102func (b *BisectState) notifyActiveListeners() {103	for i := range b.activeListeners {104		if i < b.bad || i > b.good {105			defer delete(b.activeListeners, i)106			b.activeListeners[i].Cancel <- struct{}{}107		}108	}109	if (b.good - b.bad) <= 1 {110		b.Done <- b.revs[b.bad]111	}112}113func (b *BisectState) Stats() *BisectStats {114	b.mu.RLock()115	defer b.mu.RUnlock()116	revs := len(b.revs)117	left := revs - b.bisectIteration118	if left < 0 {119		left = 0120	}121	return &BisectStats{122		Pending: len(b.activeListeners),123		Left:    left,124		Total:   revs,125	}126}...

bisect

Using AI Code Generation

1import (2type bisect struct {3}4func (b bisect) f(x float64) float64 {5	return b.a*math.Pow(x, 4) + b.b*math.Pow(x, 3) + b.c*math.Pow(x, 2) + b.d*x + b.e6}7func (b bisect) bisect(a, b float64) float64 {8	if b.f(a)*b.f(b) >= 0 {9		fmt.Println("You have not assumed right a and b")10	}11	for (b-a) >= 0.0001 {12		c = (a + b) / 213		if b.f(c) == 0.0 {14		} else if b.f(c)*b.f(a) < 0 {15		} else {16		}17	}18}19func main() {20	b := bisect{1, -5, 6, 6, -20}21	fmt.Println("The value of root is : ", b.bisect(-200, 300))22}

bisect

Using AI Code Generation

1import (2type bisect struct {3	f    func(x float64) float644}5func (b bisect) root() float64 {6	x := (b.a + b.b) / 27	for math.Abs(b.f(x)) > 1e-6 {8		if b.f(x)*b.f(b.a) > 0 {9		} else {10		}11		x = (b.a + b.b) / 212	}13}14func main() {15	f := func(x float64) float64 { return x*x - 2 }16	b := bisect{f: f, a: 1, b: 2}17	fmt.Println(b.root())18}19import (20type Newton struct {21	f, df func(x float64) float6422}23func (n Newton) root() float64 {24	for math.Abs(n.f(n.x)) > 1e-6 {25		n.x -= n.f(n.x) / n.df(n.x)26	}27}28func main() {29	f := func(x float64) float64 { return x*x - 2 }30	df := func(x float64) float64 { return 2 * x }31	n := Newton{f: f, df: df, x: 1.5}32	fmt.Println(n.root())33}34import (35type secant struct {36	f    func(x float64) float6437}38func (s secant) root() float64 {39	for math.Abs(s.f(s.x)) > 1e-6 {40		s.x, s.y = s.y, s.y-s.f(s.y)*(s.y-s.x)/(s.f(s.y)-s.f(s.x))41	}42}

bisect

Using AI Code Generation

1import (2type Bisect struct {3	f      func(float64) float644}5func NewBisect(f func(float64) float64, a, b float64, eps, n int) *Bisect {6	return &Bisect{f, a, b, eps, n}7}8func (b *Bisect) Bisect() (float64, error) {9	c := (b.a + b.b) / 2.010	if b.f(c) == 0 {11	}12	if b.n == 0 {13		return 0, fmt.Errorf("maximum number of iterations exceeded")14	}15	if math.Abs(b.f(c)) < math.Pow(10, float64(-b.eps)) {16	}17	if b.f(b.a)*b.f(c) < 0 {18	} else {19	}20	return b.Bisect()21}22func main() {23	f := func(x float64) float64 {24	}25	b := NewBisect(f, 1, 2, 5, 100)26	root, err := b.Bisect()27	if err != nil {28		fmt.Println(err)29	} else {30		fmt.Println(root)31	}32}

bisect

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter the coefficients of the quadratic equation in the form of a,b,c")4	fmt.Scan(&a, &b, &c)5	if d > 0 {6		root1 = (-b + math.Sqrt(d)) / (2 * a)7		root2 = (-b - math.Sqrt(d)) / (2 * a)8		fmt.Println("The roots are real and distinct")9		fmt.Println("Root1 = ", root1)10		fmt.Println("Root2 = ", root2)11	} else if d == 0 {12		root1 = (-b + math.Sqrt(d)) / (2 * a)13		fmt.Println("The roots are real and same")14		fmt.Println("Root1 = ", root1)15		fmt.Println("Root2 = ", root1)16	} else {17		fmt.Println("The roots are imaginary")18	}19}

bisect

Using AI Code Generation

1import (2type Bisect struct {3}4func (b *Bisect) Initialize(a, b float64) {5	b.fa = b.f(a)6	b.fb = b.f(b)7}8func (b *Bisect) Bisect() float64 {9	b.m = (b.a + b.b) / 210	b.fm = b.f(b.m)11	if math.Abs(b.fm) < 0.001 {12	}13	if b.fa*b.fm < 0 {14	} else {15	}16	return b.Bisect()17}18func (b *Bisect) f(x float64) float64 {19}20func main() {21	b.Initialize(1.5, 2.5)22	fmt.Println("Root is:", b.Bisect())23}

bisect

Using AI Code Generation

1import (2type bisect struct {3}4func (b *bisect) bisect() {5	b.c = (b.a + b.b) / 26	b.fc = f(b.c)7	if math.Abs(b.fc) < 1e-8 {8		fmt.Println("The root is:", b.c)9	}10	if b.fa*b.fc < 0 {11	} else {12	}13	b.bisect()14}15func main() {16	fmt.Println("Enter the value of a and b")17	fmt.Scan(&a, &b)18	fa = f(a)19	fb = f(b)20	if fa*fb > 0 {21		fmt.Println("Root does not exist")22	}23	bis := bisect{a, b, 0, fa, fb, 0}24	bis.bisect()25}

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