gtypes

README

Go 泛型类型约束

一、为什么有这个？

• Go原生的golang.org/x/exp/constraints已经被被官方标记为不推荐，随时可能会移除
• Go原生的包名太长不好记忆，我本人几乎是每次都得去复制粘贴，这个包把包名缩短为了gtypes，更短更容易记忆
• 提供比原生更多一些的类型，目前增加了个Number类型，表示数字的集合，这样当你同时需要Integer和Float的时候就不需要自己组合了

二、安装

go get -u github.com/golang-infrastructure/go-gtypes

三、Example

func f[T gtypes.Ordered](t T)

Documentation

Index

• type Complex
• type Float
• type Integer
• type Number
• type Ordered
• type Signed
• type Unsigned

Types

type Complex

type Complex interface {
	~complex64 | ~complex128
}

Complex is a constraint that permits any complex numeric type. If future releases of Go add new predeclared complex numeric types, this constraint will be modified to include them.

type Float

type Float interface {
	~float32 | ~float64
}

Float is a constraint that permits any floating-point type. If future releases of Go add new predeclared floating-point types, this constraint will be modified to include them.

type Integer

type Integer interface {
	Signed | Unsigned
}

Integer is a constraint that permits any integer type. If future releases of Go add new predeclared integer types, this constraint will be modified to include them.

type Number

type Number interface {
	Integer | Float
}

type Ordered

type Ordered interface {
	Integer | Float | ~string
}

Ordered is a constraint that permits any ordered type: any type that supports the operators < <= >= >. If future releases of Go add new ordered types, this constraint will be modified to include them.

type Signed

type Signed interface {
	~int | ~int8 | ~int16 | ~int32 | ~int64
}

Signed is a constraint that permits any signed integer type. If future releases of Go add new predeclared signed integer types, this constraint will be modified to include them.

type Unsigned

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

Unsigned is a constraint that permits any unsigned integer type. If future releases of Go add new predeclared unsigned integer types, this constraint will be modified to include them.