[fpc-pascal] real to integer

Vincent Snijders vsnijders at quicknet.nl
Mon May 29 14:54:01 CEST 2006

Thomas Miller schreef:
> 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?

I don't know what is going wrong.
I just created a sample app below on windows and that compiles without errors.
Maybe you can try that.

program Project1;

{$mode objfpc}{$H+}

   Classes, SysUtils
   { add your units here };

x : integer;
y : real;

   y := pi;
   x := round(y);

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