From 23ff396398e9ea3f4985c3bac25348c3a33c501e Mon Sep 17 00:00:00 2001
From: remlostime <remlostime@gmail.com>
Date: Sat, 26 Aug 2017 18:00:40 -0700
Subject: [PATCH] [Swift 4] Update Single-Source Shortest Paths (Weighted)

---
 Graph/Graph.xcodeproj/project.pbxproj                |  2 ++
 .../SSSP.playground/Contents.swift                   |  5 +++++
 .../SSSP.xcodeproj/project.pbxproj                   | 12 ++++++------
 .../SSSPTests/SSSPTests.swift                        |  7 +++++++
 4 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/Graph/Graph.xcodeproj/project.pbxproj b/Graph/Graph.xcodeproj/project.pbxproj
index 4822d80bb..17a5a7d6b 100644
--- a/Graph/Graph.xcodeproj/project.pbxproj
+++ b/Graph/Graph.xcodeproj/project.pbxproj
@@ -289,6 +289,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 4.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -338,6 +339,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 4.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
diff --git a/Single-Source Shortest Paths (Weighted)/SSSP.playground/Contents.swift b/Single-Source Shortest Paths (Weighted)/SSSP.playground/Contents.swift
index 652b558b1..e897ada4a 100644
--- a/Single-Source Shortest Paths (Weighted)/SSSP.playground/Contents.swift	
+++ b/Single-Source Shortest Paths (Weighted)/SSSP.playground/Contents.swift	
@@ -1,6 +1,11 @@
 import Graph
 import SSSP
 
+// last checked with Xcode 9.0b4
+#if swift(>=4.0)
+print("Hello, Swift 4!")
+#endif
+
 let graph = AdjacencyMatrixGraph<String>()
 let s = graph.createVertex("s")
 let t = graph.createVertex("t")
diff --git a/Single-Source Shortest Paths (Weighted)/SSSP.xcodeproj/project.pbxproj b/Single-Source Shortest Paths (Weighted)/SSSP.xcodeproj/project.pbxproj
index fb425a73e..44365e5aa 100644
--- a/Single-Source Shortest Paths (Weighted)/SSSP.xcodeproj/project.pbxproj	
+++ b/Single-Source Shortest Paths (Weighted)/SSSP.xcodeproj/project.pbxproj	
@@ -334,7 +334,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -378,7 +378,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -401,7 +401,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -421,7 +421,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swift-algorithm-club.SSSP";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -433,7 +433,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swift-algorithm-club.SSSPTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -445,7 +445,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.swift-algorithm-club.SSSPTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
diff --git a/Single-Source Shortest Paths (Weighted)/SSSPTests/SSSPTests.swift b/Single-Source Shortest Paths (Weighted)/SSSPTests/SSSPTests.swift
index 04584dfeb..924a487f5 100644
--- a/Single-Source Shortest Paths (Weighted)/SSSPTests/SSSPTests.swift	
+++ b/Single-Source Shortest Paths (Weighted)/SSSPTests/SSSPTests.swift	
@@ -10,6 +10,13 @@ import XCTest
 @testable import SSSP
 
 class SSSPTests: XCTestCase {
+  
+  func testSwift4() {
+    // last checked with Xcode 9.0b4
+    #if swift(>=4.0)
+      print("Hello, Swift 4!")
+    #endif
+  }
 
   /**
    See Figure 24.4 of “Introduction to Algorithms” by Cormen et al, 3rd ed., pg 652