[fpc-devel] FPC 2.3.1 SVN 8427: new compilation error.

Bruce Tulloch bruce at causal.com
Tue Sep 11 07:44:35 CEST 2007

In attempting to check the resolution of the GDB/DWARF issue
reported earlier, we've encountered a new (apparent) FPC bug.

FPC 2.3.1 (SVN 8427) is producing this new compilation error:

  "Error: Can't take the address of constant expressions"

when attempting to compile a line:


where MyFile is a property of a class defined thus:

  TMyClass = class(TAnotherClass)
     FFile : TextFile;
     property MyFile : TextFile read FFile;

FPC 2.1.4, Delphi6 and Kylix3 don't complain.

Replacing MyFile with FFile work OK (but is not what we want
for other reasons).

Is this a new bug or a new definition of how properties may
be handled with EOF?

Cheers, Bruce.

Jonas Maebe wrote:
> On 09 Sep 2007, at 17:13, Bruce Tulloch wrote:
>> Most of the bugs and problems we've encountered so far are related to
>> the use of with statements (used extensively in this codebase) and the
>> subtle namespace resolution differences between Delphi and FPC.
> Please report bugs about this! http://www.freepascal.org/mantis . Some
> may not be fixed because considered bugs in or too confusing behaviour
> by Delphi, but most probably will be fixed, even if only in Delphi mode.
> I already fixed a lot of with-related bugs since 2.0.4 (mostly related
> to "class of" reference types), but there may be more left.
>> Most of the remaining problems relate to the widget set implementation
>> (we're using GTK1 but would like to use GTK2), especially where fonts
>> are concerned as well as some apparent glitches in LCL's TCanvas and
>> some other visual components when they render to the screen.
> Ditto.
> Jonas
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