Update 22_Protocols.md (#679)

官方文档的写法是这样的
2017-01-03 18:29:32 +08:00
parent 1fb769e4df
commit 33e4f02ee2
1 changed files with 1 additions and 1 deletions
--- a/source/chapter2/22_Protocols.md
+++ b/source/chapter2/22_Protocols.md
@ -171,7 +171,7 @@ class LinearCongruentialGenerator: RandomNumberGenerator {
 	let a = 3877.0
 	let c = 29573.0
 	func random() -> Double {
-		lastRandom = ((lastRandom * a + c) % m)
+		lastRandom = ((lastRandom * a + c).truncatingRemainder(dividingBy:m))
 		return lastRandom / m
 	}
 }