[fpc-pascal] typed constants

P Padil ppadilcdx at gmail.com
Fri Jan 2 22:14:20 CET 2026


Ah ok, thanks.  

> On Jan 2, 2026, at 12:47 PM, Mattias Gaertner via fpc-pascal <fpc-pascal at lists.freepascal.org> wrote:
> 
> 
> 
> On 1/2/26 20:16, P Padil via fpc-pascal wrote:
>> Ok I should have read the error message, the problem is with the following declaration, not the first:
>> const
>>    tprob: double = 0.020000000;
>>    lprob: double = tprob/1e4;
> 
> For legacy reasons these actually declare variables.
> 
> Maybe you want
> 
> const
>    tprob = double(0.02);
>    lprob = double(tprob/1e4);
> 
> Mattias
> 
> 
> 
>> If I remove the types then it compiles, with the types it says "Error: Illegal expression” on the second declaration.
>>> On Jan 2, 2026, at 10:57 AM, P Padil <ppadilcdx at gmail.com> wrote:
>>> 
>>> I attempted to use a typed constant:
>>> 
>>> const
>>> tprob : Double = 0.020;
>>> 
>>> But the compiler (3.2.2) balked as illegal expression.  Am i misreading section "2.2  Typed constants” in the reference manual?
>>> 
>>> Thanks,
>>> Pete
>> _______________________________________________
>> fpc-pascal maillist  -  fpc-pascal at lists.freepascal.org
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> 
> _______________________________________________
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