Re: Strange casting error when using lamdas

[Steven Schveighoffer via Digitalmars-d-learn]

On 12/3/19 12:35 PM, Robert M. Münch wrote:
The first three lines are on module level, the second two lines are 
inside a class member function.

pragma(msg,WM_MOUSEMOVE_LBUTTON_STREAM.sizeof);

8LU

but

pragma(msg,windows_message_streams[WM_MOUSEMOVE].filter!(win => 
(win.wParam & MK_LBUTTON)).sizeof);

16LU

Why do these two things have different sizes even the declaration is 
exactly the same?


Is one a delegate and one a function pointer? This can easily happen for 
untyped lambdas.

-Steve