"999 is enough for anybody" triple-zero padding (#18)

When I hit 999 exercises, I will finally have reached the ultimate
state of soteriological release and no more exercises will be needed.
The cycle will be complete. All that will be left is perfect quietude,
freedom, and highest happiness.

1 files changed, 35 insertions, 0 deletions

diff --git a/exercises/012_while2.zig b/exercises/012_while2.zig
new file mode 100644
index 0000000..ef53ea0
--- /dev/null
+++ b/exercises/012_while2.zig
@@ -0,0 +1,35 @@
+//
+// Zig 'while' statements can have an optional 'continue expression'
+// which runs every time the while loop continues (either at the
+// end of the loop or when an explicit 'continue' is invoked - we'll
+// try those out next):
+//
+//     while (condition) : (continue expression) {
+//         ...
+//     }
+//
+// Example:
+//
+//     var foo = 2;
+//     while (foo<10) : (foo+=2) {
+//         // Do something with even numbers less than 10...
+//     }
+//
+// See if you can re-write the last exercise using a continue
+// expression:
+//
+const std = @import("std");
+
+pub fn main() void {
+    var n: u32 = 2;
+
+    // Please set the continue expression so that we get the desired
+    // results in the print statement below.
+    while (n < 1000) : ??? {
+        // Print the current number
+        std.debug.print("{} ", .{n});
+    }
+
+    // As in the last exercise, we want this to result in "n=1024"
+    std.debug.print("n={}\n", .{n});
+}