ptr

Documentation

Index

• func Compare[T cmp.Ordered](l, r *T) int
• func CompareBy[T any](l, r *T, cmp func(T, T) int) int
• func Equal[T comparable](l, r *T) bool
• func EqualBy[T any](l, r *T, eq func(T, T) bool) bool
• func OrZero[T any](v *T) *T
• func Ref[T any](t T) *T
• func RefOrNil[T comparable](t T) *T
• func ValueOr[T any](v *T, d T) T
• func ValueOrZero[T any](v *T) T

Functions

func Compare

func Compare[T cmp.Ordered](l, r *T) int

Compare compares two pointer. If both non-nil, compare underlying data, if both nil, return 0, non-nil pointer is always greater than nil pointer.

func CompareBy

func CompareBy[T any](l, r *T, cmp func(T, T) int) int

func Equal

func Equal[T comparable](l, r *T) bool

Equal test whether two pointer are equal. If both non-nil, test underlying data, if both nil, return true, else return false

func EqualBy

func EqualBy[T any](l, r *T, eq func(T, T) bool) bool

func OrZero

func OrZero[T any](v *T) *T

func Ref

func Ref[T any](t T) *T

Ref return reference of value

func RefOrNil

func RefOrNil[T comparable](t T) *T

RefOrNil return reference of value if it not the zero value, else return nil

func ValueOr

func ValueOr[T any](v *T, d T) T

ValueOr return value of pointer if not nil, else return default value.

func ValueOrZero

func ValueOrZero[T any](v *T) T

ValueOrZero return value of pointer if not nil, else return zero value.