Now I could compile FPC 2.7.1 and perform some tests :-)
Unfortunately I couldn't submit an bug report, so it comes here:
When compiled with Delphi XE, the code below shows 1252 (my
DefaultSystemCodePage) for all strings, be empty or non-empty.
Compiled with FPC 2.7.1, the StringCodePage(r) is reported as zero after
the first assignment (r := s;).
This is incompatible with Delphi :-(
program rawtest;
var
s: AnsiString; //UTF8String;
r: RawByteString;
begin
s := 'abc';
r := s;
WriteLn('s CP: ',StringCodePage(s)); //1252
WriteLn('r CP: ',StringCodePage(r)); //XE: 1252, FPC: 0
s := r;
WriteLn('s CP: ',StringCodePage(s)); //XE: 1252, FPC: 0
end.
This difference may be due to an error in StringCodePage, more probably
in RawByteString handling in general.
Another one:
Delphi XE does not export the CP_xxx encoding constants from System.pas.
This means that the encoding constants are not available in (compatible)
user code.
CP_NONE is declared in Windows.pas for clipping, as:
CP_NONE = 0; { No clipping of output }
different from the CP_NONE encoding ($FFFF).
DoDi
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