On Tuesday, 20 June 2023 17:46:04 PDT Thiago Macieira wrote:
> On Tuesday, 20 June 2023 15:50:16 PDT Volker Hilsheimer via Interest wrote:
> > Either way, it would perhaps help to boil all this down to some minimal
> > code; you have a 2-byte aligned struct that you cast to and from void *,
> > thi
On Tuesday, 20 June 2023 15:50:16 PDT Volker Hilsheimer via Interest wrote:
> Either way, it would perhaps help to boil all this down to some minimal
> code; you have a 2-byte aligned struct that you cast to and from void *,
> this should be reproducible with small bit of code. And if you have that
(bringing this back to the original thread rather than the digest)
On 20 Jun 2023, at 14:54, Turtle Creek Software wrote:
On 19 Jun 2023, at 17:30, Thiago Macieira wrote:
On Monday, 19 June 2023 04:13:51 PDT Turtle Creek Software wrote:
The debugger showed the correct address but failed to cast
On Monday, 19 June 2023 04:13:51 PDT Turtle Creek Software wrote:
> The debugger showed the correct address but failed to cast a
> parameter.
>
> Can the ARM compiler handle #pragma pack (2) ?
What does this have to do with casting? It would really help if you gave exact
error messages. That inc
Sorry, no knowledge about the pragma and how it's handled by clang.
I'd make it all 8-bytes aligned on 64-bit.
Kind regards,
Robert Iakobashvili
On Mon, Jun 19, 2023 at 2:14 PM Turtle Creek Software
wrote:
>
> Alignment is definitely possible. There was a similar p
Alignment is definitely possible. There was a similar problem earlier in
execution, and that had pointers to 2-byte aligned structs.
We just rewrote the ugly void* code rather than try to diagnose it
further. The debugger showed the correct address but failed to cast a
parameter.
Can the ARM com
On Sat, Jun 17, 2023 at 8:12 PM Turtle Creek Software
wrote:
>
> Our app contains some old C-ish C++ code from an early 90's database called
> NeoAccess. It often uses function pointers with void pointers as parameters.
> Their code works OK for Mac & Windows, when built with the latest Qt5 on
On Saturday, 17 June 2023 10:09:42 PDT Turtle Creek Software wrote:
> The code also builds OK with the latest Qt6, but running it on an M1 Mac
> gives run-time errors. Void pointers to structs and objects don't cast
> properly and stay null.
Your diagnosis can't be correct.
The ABI on Arm Macs is
Our app contains some old C-ish C++ code from an early 90's database called
NeoAccess. It often uses function pointers with void pointers as
parameters. Their code works OK for Mac & Windows, when built with the
latest Qt5 on Intel.
The code also builds OK with the latest Qt6, but running it on a
