This example comes from http://digitalmars.com/d/2.0/template.html
int x; template Foo(alias X) { static int* p = &X; } void test() { alias Foo!(x) bar; *bar.p = 3; // set x to 3 static int y; alias Foo!(y) abc; *abc.p = 3; // set y to 3 } Compiling this gives the following compiler errors on the line inside Foo: t.d(5): Error: non-constant expression & x t.d(5): Error: non-constant expression & y Changing static int* to enum int* fixes the compiler errors. Are these pages written using DDoc? Is it possible to extract and compile the examples to ensure they are correct? And perhaps use asserts instead of/in addition to comments where possible (Asserts are used many places already)? Executable and verifiable examples could be a useful feature as plain text documentation and examples have a tendency to rot.