align

package

v1.1.0 Latest Latest Go to latest Published: Apr 30, 2026 License: MIT Imports: 0 Imported by: 0

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func Down[T Unsigned](v, a T) T

Down aligns v down to the previous multiple of a.

a must be a power of two.

func Up[T Unsigned](v, a T) T

Up aligns v up to the next multiple of a.

a must be a power of two.

type Unsigned interface {
	~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
}

Unsigned is a local type constraint for unsigned integers.

We intentionally avoid external dependencies (e.g. golang.org/x/exp/constraints) to keep go-foundation stdlib-only.