Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-12.cs

@@ -0,0 +1,48 @@
+/*
+ * Tests the ?: operator and the string concatenation
+ */
+
+using System;
+class X {
+	public static int Main (string [] args)
+	{
+		string a = "hello";
+		string b = "1";
+		string c = a + b;
+		string d = a + 1;
+		string y;
+		
+		if (c != d)
+			return 1;
+		if (d != (a + b))
+			return 2;
+		if (d != x (a, b))
+			return 3;
+		if (d != x (a, 1))
+			return 4;
+
+		y = c == d ? "equal" : "not-equal";
+		if (y != "equal")
+			return 5;
+		y = b == a ? "oops" : "nice";
+		if (y != "nice")
+			return 6;
+		
+		string [] blah = { "A"+'B'+"C" };
+		if (blah [0] != "ABC")
+			return 7;
+		
+		Console.WriteLine (c);
+		return 0;
+	}
+
+	static string s (string a, int o)
+	{
+		return a + o;
+	}
+	static string x (string s, object o)
+	{
+		return s + o;
+	}
+
+}