utils

package
v0.21.0 Latest Latest
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Published: Aug 10, 2026 License: Apache-2.0 Imports: 6 Imported by: 109

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Constants

This section is empty.

Variables

This section is empty.

Functions

func BitReverse added in v0.20.0

func BitReverse[T any](v []T)

BitReverse applies the bit-reversal permutation to v. len(v) must be a power of 2

func BitReverseCobra added in v0.21.0

func BitReverseCobra[T any](v []T)

BitReverseCobra applies the cache-friendly COBRA bit-reversal permutation to v. len(v) must be a power of two.

func BitReverseCopy added in v0.21.0

func BitReverseCopy[T any](dst, src []T)

BitReverseCopy writes dst[bitrev(i)] = src[i]. The slices must have the same power-of-two length and must not overlap. It uses the same architecture, input-size, and element-size heuristic as BitReverse.

func BitReverseCopyCobra added in v0.21.0

func BitReverseCopyCobra[T any](dst, src []T)

BitReverseCopyCobra writes dst[bitrev(i)] = src[i] using cache-friendly COBRA tiling. The slices must have the same power-of-two length and must not overlap.

func BitReverseCopyNaive added in v0.21.0

func BitReverseCopyNaive[T any](dst, src []T)

BitReverseCopyNaive writes dst[bitrev(i)] = src[i] using direct indexed copies. The slices must have the same power-of-two length and must not overlap.

func BitReverseNaive added in v0.21.0

func BitReverseNaive[T any](v []T)

BitReverseNaive applies the bit-reversal permutation to v using direct swaps. len(v) must be a power of two.

func Max added in v0.9.1

func Max(a, b int) int

Max returns the maximum of two integers

func MaxIndexFunc added in v0.15.0

func MaxIndexFunc(N int, gt func(int, int) bool) int

func PartialSums added in v0.15.0

func PartialSums(s ...int) []int

func PartialSumsF added in v0.15.0

func PartialSumsF(N int, f func(int) int) []int

func ToSubscript

func ToSubscript(s string) string

ToSubscript converts a string to subscript to the utmost. It will use original rune if there has no corresponding subscript for a letter.

func ToSuperscript

func ToSuperscript(s string) string

ToSuperscript converts a string to superscript to the utmost. It will use original rune if there has no corresponding superscript for a letter.

Types

type Task added in v0.9.1

type Task func(start, end int)

type WorkerPool added in v0.9.1

type WorkerPool struct {
	// contains filtered or unexported fields
}

func NewWorkerPool added in v0.9.1

func NewWorkerPool() *WorkerPool

func (*WorkerPool) NbWorkers added in v0.16.0

func (wp *WorkerPool) NbWorkers() int

func (*WorkerPool) Stop added in v0.9.1

func (wp *WorkerPool) Stop()

Stop (but does not wait) the pool. It frees the worker.

func (*WorkerPool) Submit added in v0.9.1

func (wp *WorkerPool) Submit(n int, work func(int, int), minBlock int) *sync.WaitGroup

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