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On Wednesday, 10 May 2023 at 09:06:57 UTC+1 Matt wrote:
Albrecht Schlosser schrieb am Dienstag, 9. Mai 2023 um 21:33:16 UTC+2:
On 5/8/23 15:58
' melcher...' via fltk.coredev wrote:
I
can of course rewrite this to use a trailing number for number of
arguments... : `FL_FUNCTION_CALLBACK_3(btn,
something, int, a, 3, int, b, 4, int, c, 5)`
This would be an interesting change because it would make sure that
you assign the correct number of arguments (triplets) for every
macro. Should be considered, IMHO. Even better if it also increases
compatibility...
Unfortunately we can't have it both. The compiler throws an error es soon as it sees the ellipsis (...). But I could disable the varargs version if fl_attr.h determines a really old compiler.
FWIW, I'm inclined towards the variadic macro solution. Maybe, as Albrecht suggested earlier, we can include something in the docs. to the effect of "If you are using an older compiler that does not support variadic macros, this feature will not be available, so in that case do not use it!"
I'd assume anyone choosing to use an old compiler toolchain is doing so for a reason, probably knows what they are doing, and may well be running on ancient hardware that has limited capabilities anyway...
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