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BOOLやintをランダムで取得する

Last updated at Posted at 2016-01-15

BOOLを割合を決めてランダムで取得する

Objective-cの場合

.m
    BOOL randomBoolWithYesPercent(int percent) {
        return arc4random_uniform(100) < percent;
    }

Swiftの場合

.swift
    func randomBoolWithYesPercent(percent: UInt32) -> Bool {
        return arc4random_uniform(100) < percent
    }

intを最大値を決めてランダムで取得する

Objective-cの場合

.m
    int randomIntWithMax(int max) {
        return arc4random_uniform(max + 1);
    }

Swiftの場合

.swift
    func randomIntWithMax(max: UInt32) -> UInt32 {
        return arc4random_uniform(max + 1)
    }

Swiftの書き方がまだよくわかっていないので
間違ってたらごめんなさい

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