Merge pull request #123 from jpsim/use-additional-import-instead-of-defining-constants

Use additional import instead of defining constants on Linux

Sources/Yams/Representer.swift

@@ -9,6 +9,7 @@
 #if SWIFT_PACKAGE
     import CYaml
 #endif
+import CoreFoundation
 import Foundation
 
 public extension Node {
@@ -267,9 +268,6 @@ private extension FloatingPoint where Self: CVarArg {
     var formattedStringForCodable: String {
         // Since `NumberFormatter` creates a string with insufficient precision for Decode,
         // it uses with `String(format:...)`
-#if os(Linux)
-        let DBL_DECIMAL_DIG = 17
-#endif
         let string = String(format: "%.*g", DBL_DECIMAL_DIG, self)
         // "%*.g" does not use scientific notation if the exponent is less than –4.
         // So fallback to using `NumberFormatter` if string does not uses scientific notation.

Tests/YamsTests/TestHelper.swift

@@ -6,6 +6,9 @@
 //  Copyright (c) 2016 Yams. All rights reserved.
 //
 
+#if !_runtime(_ObjC)
+import CDispatch
+#endif
 import Foundation
 import XCTest
 
@@ -19,9 +22,6 @@ func timestamp(_ timeZoneHour: Int = 0,
                _ fraction: Double? = nil ) -> Date {
     let calendar = Calendar(identifier: .gregorian)
     let timeZone = TimeZone(secondsFromGMT: timeZoneHour * 60 * 60)
-    #if os(Linux)
-        let NSEC_PER_SEC = 1000000000
-    #endif
     let nanosecond = fraction.map { Int($0 * Double(NSEC_PER_SEC)) }
     let datecomponents = DateComponents(calendar: calendar, timeZone: timeZone,
                           year: year, month: month, day: day,