generics.swift

func swapTwoString(a: inout String, b: inout String) {
    let temporaryB = a
    a = b
    b = temporaryB

}

var someString = "I AM FIRST"
var anotherStirng = "I AM SECONDE"

print("first string is \(someString) and another Stirng is \(anotherStirng) ")

swapTwoString(a: &someString, b: &anotherStirng)

print("now first string is \(someString) and another Stirng is \(anotherStirng)")



var someString = 1
var anotherStirng = 2

print("first string is \(someString) and another Stirng is \(anotherStirng) ")

swapTwoString(a: &someString, b: &anotherStirng)

print("now first string is \(someString) and another Stirng is \(anotherStirng)")
// Cannot convert value of type 'Int' to expected argument type 'String'


//////////////////////////////
//generics


func swapTwoAnyValues<Values>(a: inout Values, b: inout Values) {
    let temporaryB = a
    a = b
    b = temporaryB

}

var anyValues = 1
var anotherAnyValues = 2
print("first string is \(anyValues) and another Stirng is \(anotherAnyValues) ")
swapTwoAnyValues(a: &anyValues, b: &anotherAnyValues)
print("now first string is \(anyValues) and another Stirng is \(anotherAnyValues)")


var anyValues1 = "I AM FIRST"
var anotherAnyValues1 = "I AM SECONDE"
print("first string is \(anyValues1) and another Stirng is \(anotherAnyValues1) ")
swapTwoAnyValues(a: &anyValues1, b: &anotherAnyValues1)
print("now first string is \(anyValues1) and another Stirng is \(anotherAnyValues1)")