• TheFlyingFiddle (6/6) Oct 27 2015 With this code:
• Adam D. Ruppe (6/8) Oct 27 2015 The monitor used for `synchronized`.
• TheFlyingFiddle (2/10) Oct 27 2015 I see Thanks.

TheFlyingFiddle <kurtyan student.chalmers.se> writes:

With this code:

class A { }
pragma(msg, __traits(classInstanceSize, A));

I get the output 8 (32-bit).
I can account for the first thing a vtable. But that
should only cover 4bytes. What's in the other 4bytes?

Adam D. Ruppe <destructionator gmail.com> writes:

On Tuesday, 27 October 2015 at 21:23:45 UTC, TheFlyingFiddle 
wrote:
 I can account for the first thing a vtable. But that
 should only cover 4bytes. What's in the other 4bytes?

The monitor used for `synchronized`.

(yes, this is something a lot of people want to remove as it is 
rarely all that useful yet you pay the price in all D class 
objects)

TheFlyingFiddle <kurtyan student.chalmers.se> writes:

On Tuesday, 27 October 2015 at 21:28:31 UTC, Adam D. Ruppe wrote:
 On Tuesday, 27 October 2015 at 21:23:45 UTC, TheFlyingFiddle 
 wrote:
 I can account for the first thing a vtable. But that
 should only cover 4bytes. What's in the other 4bytes?

 The monitor used for `synchronized`.

 (yes, this is something a lot of people want to remove as it is 
 rarely all that useful yet you pay the price in all D class 
 objects)

I see Thanks.