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 compiler handle #pragma pack (2) ? Thanks, Casey McDermott TurtleSoft.com On Mon, Jun 19, 2023 at 2:50 AM coroberti <corobe...@gmail.com> wrote: > On Sat, Jun 17, 2023 at 8:12 PM Turtle Creek Software > <supp...@turtlesoft.com> 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 Intel. > > > > 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. We haven't tried Qt6 on Windows yet but will do > that soon. > > > > Any ideas on how to fix it? We've abandoned NeoAccess for our new app > but still need it to convert data from existing files. Rewriting their > code is a nightmare. > > Casey, > Perhaps, checking the alignment of the void* pointers in question > could provide you with some clues. > > Kind regards, > Robert Iakobashvili > ............................ >
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