Adriaan van Os via fpc-devel <fpc-devel@lists.freepascal.org> schrieb am Do., 2. Feb. 2023, 02:47:
> Sven Barth via fpc-devel wrote: > > > There is no full documentation for that parameter modifier (someone > > might want to file a bug report for that), but the documentation for > > “const” ( > > > https://www.freepascal.org/docs-html/current/ref/refsu67.html#x183-20700014.4.4 > > ) contains this: > > > > === doc begin === > > > > Contrary to Delphi, no assumptions should be made about how const > > parameters are passed to the underlying routine. In particular, the > > assumption that parameters with large size are passed by reference is > > not correct. For this the constref parameter type should be used, which > > is available as of version 2.5.1 of the compiler. > > > > === doc end === > > On debate, see FPC issue 17442. > There is no debate planned for this in the near future. So even if this might change some time in the future it does not *now* and very likely also not for 3.4.0. Not to mention that things wouldn't change for most platforms anyway, because they only have the platform ABI available and that *must not* change for compatibility with C code. Regards, Sven >
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