Re: [fpc-pascal] Enum range check error

On 21/10/2020 22:46, Ryan Joseph via fpc-pascal wrote: >> On Oct 21, 2020, at 2:43 PM, Jonas Maebe via fpc-pascal >> wrote: >> >> I tried to explain in the rest of my message why that cannot be done. It >> might be possible in some cases, but that would just create a false >> sense of security an

Re: [fpc-pascal] Enum range check error

> On Oct 21, 2020, at 2:43 PM, Jonas Maebe via fpc-pascal > wrote: > > I tried to explain in the rest of my message why that cannot be done. It > might be possible in some cases, but that would just create a false > sense of security and unpredictable results (because no compile-time > range c

Re: [fpc-pascal] Enum range check error

On 21/10/2020 21:34, Ryan Joseph via fpc-pascal wrote: I thought default would just return the first value in the enum but I guess it's just zeros. Maybe we need a better default for objfpc mode. The first element is returned by Low(TEnum), and the first value by Ord(Low(TEnum)).

Re: [fpc-pascal] Enum range check error

On 21/10/2020 22:34, Ryan Joseph via fpc-pascal wrote: > > >> On Oct 21, 2020, at 2:08 PM, Jonas Maebe via fpc-pascal >> wrote: >> >> See https://bugs.freepascal.org/view.php?id=34972 for some comments >> about Default. So this is a bug in the usage of Default, since Default >> cannot be guaran

Re: [fpc-pascal] Enum range check error

> On Oct 21, 2020, at 2:08 PM, Jonas Maebe via fpc-pascal > wrote: > > See https://bugs.freepascal.org/view.php?id=34972 for some comments > about Default. So this is a bug in the usage of Default, since Default > cannot be guaranteed to return a valid value for a type. I thought default woul

Re: [fpc-pascal] Enum range check error

On 21/10/2020 21:59, Ryan Joseph via fpc-pascal wrote: > Is this a bug in generics with default()? > > = > > type > TEnum = (Unused = '.'); > generic TSomething = class > function Get: T; > end; > TEnumeratedSomething = specialize TSomething; > > function TSometh

[fpc-pascal] Enum range check error

Is this a bug in generics with default()? = type TEnum = (Unused = '.'); generic TSomething = class function Get: T; end; TEnumeratedSomething = specialize TSomething; function TSomething.Get: T; begin // Range check error while evaluating constants (0 must be

Re: [fpc-pascal] New package to evaluate Pascal-expressions

On Wed, 21 Oct 2020, Joost van der Sluis via fpc-pascal wrote: Hi all, Working on fpDebug, I've got onto a side-track and created an expression-evaluator based on fcl-passrc . So that you can evaluate Pascal-expressions at runtime. Hah

[fpc-pascal] New package to evaluate Pascal-expressions

Hi all, Working on fpDebug, I've got onto a side-track and created an expression-evaluator based on fcl-passrc . So that you can evaluate Pascal-expressions at runtime. Regards, Joost. ___ fpc-