I've stumbled on a situation where a case statement compiles when I wouldn't expect it to. I would expect the below code to produce a compile error:     program test;     var i : byte = 5;     begin         case i of             0..4: writeln('value is ', i);             else writeln('Else!');             i := 3;             writeln(i);         end;     end. This compiles without errors or warnings on FPC 3.0.4 and produces the output:     Else!     3 None of the documentation I've looked at suggests that a case-else is implicitly a block. All examples in the documentation show only a single statement in any else clause, or an explicit begin-end block. Is this expected behavior? If yes, the reference guide (13.2.2) would benefit from mentioning this.

Am 19.09.2019 um 21:07 schrieb Kirinn: > I've stumbled on a situation where a case statement compiles when I > wouldn't expect it to. I would expect the below code to produce a > compile error: > >     program test; > >     var i : byte = 5; > >     begin > >         case i of > >             0..4: writeln('value is ', i); > >             else writeln('Else!'); > >             i := 3; > >             writeln(i); > >         end; > >     end. > > This compiles without errors or warnings on FPC 3.0.4 and produces > the output: > >     Else! > >     3 > > None of the documentation I've looked at suggests that a case-else is > implicitly a block. All examples in the documentation show only a > single statement in any else clause, or an explicit begin-end block. > > Is this expected behavior? If yes, the reference guide (13.2.2) would > benefit from mentioning this. That is indeed by design (at least Delphi compiles it as well). You can file a bug report against the documentation so that it isn't forgotten. Regards, Sven _______________________________________________ fpc-devel maillist  -  https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel

I'm assuming that's what the 'statementlist' means in the documentation (rather than just 'statement') On 9/19/2019 3:33 PM, Sven Barth via fpc-devel wrote: > Am 19.09.2019 um 21:07 schrieb Kirinn: >> I've stumbled on a situation where a case statement compiles when I >> wouldn't expect it to. I would expect the below code to produce a >> compile error: >> >>     program test; >> >>     var i : byte = 5; >> >>     begin >> >>         case i of >> >>             0..4: writeln('value is ', i); >> >>             else writeln('Else!'); >> >>             i := 3; >> >>             writeln(i); >> >>         end; >> >>     end. >> >> This compiles without errors or warnings on FPC 3.0.4 and produces >> the output: >> >>     Else! >> >>     3 >> >> None of the documentation I've looked at suggests that a case-else >> is implicitly a block. All examples in the documentation show only a >> single statement in any else clause, or an explicit begin-end block. >> >> Is this expected behavior? If yes, the reference guide (13.2.2) >> would benefit from mentioning this. > That is indeed by design (at least Delphi compiles it as well). You > can file a bug report against the documentation so that it isn't > forgotten. > > Regards, > Sven > _______________________________________________ > fpc-devel maillist  -  > https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel _______________________________________________ fpc-devel maillist  -  https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel