Data commit

Task/Function-prototype/D/function-prototype.d

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+/// Declare a function with no arguments that returns an integer.
+int noArgs();
+
+/// Declare a function with two arguments that returns an integer.
+int twoArgs(int a, int b);
+
+/// Parameter names are optional in a prototype definition.
+int twoArgs2(int, int);
+
+/// An ellipsis can be used to declare a function that accepts
+/// C-style varargs.
+int anyArgs(...);
+
+/// One mandatory integer argument followed by C-style varargs.
+int atLeastOneArg(int, ...);
+
+/// Declare a function that accepts any number of integers.
+void anyInts(int[] a...);
+
+/// Declare a function that accepts D-style varargs.
+void anyArgs2(TArgs...)(TArgs args);
+
+/// Declare a function that accepts two or more D-style varargs.
+void anyArgs3(TArgs...)(TArgs args) if (TArgs.length > 2);
+
+/// Currently D doesn't support named arguments.
+
+/// One implementation.
+int twoArgs(int a, int b) {
+    return a + b;
+}
+
+interface SomeInterface {
+    void foo();
+    void foo(int, int);
+
+    // Varargs
+    void foo(...); // C-style.
+    void foo(int[] a...);
+    void bar(T...)(T args); // D-style.
+
+    // Optional arguments are only supported if a default is provided,
+    // the default arg(s) has/have to be at the end of the args list.
+    void foo(int a, int b = 10);
+}
+
+void main() {}