Uninitialized object hangs without warning.

[bearophile via Digitalmars-d-learn]

Bear Cherian:

> Class MyClass{
>
>     this(){}
>
>     void someFunction(){
>         //body
>     }
>
> }
>
> And in my app I had something like
>
>     MyClass classObject;
>     classObject.someFunction();
>
> When I compile, no warnings or errors.

If you compile that code (with lowercase Class) with -O the 
compiler finds the bug:



class MyClass {
     this() {}

     void someFunction() {
         //body
     }
}

void main() {
     MyClass classObject;
     classObject.someFunction;
}


test.d(11,5): Error: null dereference in function _Dmain


But in more complex cases the compiler doesn't.

Bye,
bearophile