On 29 mei 2006, at 14:46, Thomas Miller wrote:
I am frustrated by a very simple problem. I am trying to convert
real to integer, using free pascal for mac. I am an old Think
Pascal user who just recently found free pascal and, while thrilled
to have a pascal compiler for mac OSX, I am still a bit lost. In
Think Pascal, I would have just used "round", but this doesn't seem
to work.
x : integer;
y : real;
x := round(y);
gives me an error saying "got "Double" expected "SmallInt"". This
occurs no matter how I define x: integer, smallint, etc. In fact,
if I set x to real, then the program compiles and works, simply
converting decimal values to 0 but not deleting them.
I suspect I am making some simple error. Any advice?
The problem is that Apple's universal interfaces also include a
"round" function, which returns a real instead of an integral type.
There are two solutions:
a) use "system.round(y)" so the compiler uses the round function from
the system unit instead of from your carbon unit
b) switch to a new version of the Universal Interfaces translations
(where that "round" function has been renamed "roundd"), available from
http://www.elis.ugent.be/~jmaebe/nobackup/fpc/
FPCPInterfaces060428.zip
Note that in case b), instead of the Carbon unit, you have to use the
"fpcmacosall" unit instead. It also fixes several bugs in the UI
translations, so it's a good idea to upgrade them in either case.
Jonas
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