March 2014 update

Task/Reverse-a-string/D/reverse-a-string.d

@@ -1,12 +1,16 @@
 void main() {
-    import std.stdio, std.range, std.conv;
+	import std.range, std.conv;
 
-    string s1 = "hello"; // UTF-8
-    assert(s1.retro.text == "olleh");
+	string s1 = "hello"; // UTF-8
+	assert(s1.retro.text == "olleh");
 
-    wstring s2 = "hello"w; // UTF-16
-    assert(s2.retro.wtext == "olleh");
+	wstring s2 = "hello"w; // UTF-16
+	assert(s2.retro.wtext == "olleh"w);
 
-    dstring s3 = "hello"d; // UTF-32
-    assert(s3.retro.dtext == "olleh");
+	dstring s3 = "hello"d; // UTF-32
+	assert(s3.retro.dtext == "olleh"d);
+
+	// without using std.range:
+	dstring s4 = "hello"d;
+	assert(s4.dup.reverse == "olleh"d); // simple but inefficient (copies first, then reverses)
 }

Task/Reverse-a-string/Objective-C/reverse-a-string-2.m

@@ -1,11 +1,11 @@
 int main()
 {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+    @autoreleasepool {
 
-    NSString *test = [@"!A string to be reverted!" reverseString];
+        NSString *test = [@"!A string to be reverted!" reverseString];
 
-    NSLog(@"%@", test);
+        NSLog(@"%@", test);
 
-    [pool release];
+    }
     return 0;
 }

Task/Reverse-a-string/Objective-C/reverse-a-string-4.m

@@ -1,11 +1,11 @@
 int main()
 {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+    @autoreleasepool {
 
-    NSString *test = [@"as⃝df̅" reverseString];
+        NSString *test = [@"as⃝df̅" reverseString];
 
-    NSLog(@"%@", test);
+        NSLog(@"%@", test);
 
-    [pool release];
+    }
     return 0;
 }

Task/Reverse-a-string/Rust/reverse-a-string-1.rust

@@ -1,3 +1,3 @@
-// rust 0.8
+// rust 0.9
 let s = "一二三四五六七八九十";
-let reversed:~str = s.rev_iter().collect();
+let reversed:~str = s.chars_rev().collect();

Task/Reverse-a-string/Rust/reverse-a-string-2.rust

@@ -1 +1 @@
-let reversed:~str = "一二三四五六七八九十".rev_iter().collect();
+let reversed:~str = "一二三四五六七八九十".chars_rev().collect();