Inserted #if guard for s390x

2018-04-03 14:45:52 +09:00
parent f2c9b5dd29
commit 2fea7f037f
1 changed files with 7 additions and 5 deletions
@@ -153,11 +153,13 @@ public extension fd_set {
    @inline(__always)
    private static func address(for fd: Int32) -> (Int, Int32) {
        var intOffset = Int(fd) / __fd_set_count
-		if (intOffset % 2 == 0) {
-			intOffset += 1
-		} else {
-			intOffset -= 1
-		}
+		#if arch(s390x)
+		    if (intOffset % 2 == 0) {
+			    intOffset += 1
+		    } else {
+			    intOffset -= 1
+		    }
+        #endif
        let bitOffset = Int(fd) % __fd_set_count
        let mask = Int32(bitPattern: UInt32(1 << bitOffset))
        return (intOffset, mask)