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   comp.lang.pascal.borland      Borland Pascal was actually pretty neat      2,978 messages   

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   Message 2,135 of 2,978   
   Heinrich Wolf to All   
   Re: printing variable problems   
   13 Apr 06 18:21:16   
   
   From: invalid@invalid.invalid   
      
   Hi, see this program:   
      
   program Params;   
      
   var x : Integer;   
      
   procedure p1(const x1 : Integer);   
     begin   
       { x1 := 1; } { throws compiling error }   
     end;   
      
   procedure p2(x2 : Integer);   
     begin   
       writeln('x2 = ', x2);   
       x2 := 1;   
       writeln('x2 = ', x2);   
     end;   
      
   procedure p3(var x3 : Integer);   
     begin   
       writeln('x3 = ', x3);   
       x3 := 1;   
       writeln('x3 = ', x3);   
     end;   
      
   begin   
     x := 0;   
     writeln('x  = ', x);   
     p2(x);   
     writeln('x  = ', x);   
     p3(x);   
     writeln('x  = ', x);   
     readln;   
   end.   
      
   ... and it's output   
   x  = 0   
   x2 = 0   
   x2 = 1   
   x  = 0   
   x3 = 0   
   x3 = 1   
   x  = 1   
      
   Regards   
   Heiner   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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