Initial data commit

Task/Short-circuit-evaluation/D/short-circuit-evaluation.d

@@ -0,0 +1,21 @@
+import std.stdio, std.algorithm;
+
+T a(T)(T answer) {
+    writefln("  # Called function a(%s) -> %s", answer, answer);
+    return answer;
+}
+
+T b(T)(T answer) {
+    writefln("  # Called function b(%s) -> %s", answer, answer);
+    return answer;
+}
+
+void main() {
+    foreach (immutable x, immutable y;
+             [false, true].cartesianProduct([false, true])) {
+        writeln("\nCalculating: r1 = a(x) && b(y)");
+        immutable r1 = a(x) && b(y);
+        writeln("Calculating: r2 = a(x) || b(y)");
+        immutable r2 = a(x) || b(y);
+    }
+}