SystemTrunc (Delphi)

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Description

This example demonstrates how the Trunc function operates on various real numbers.

Code

procedure TForm1.Button1Click(Sender: TObject);
var
   S, T: string;
begin
   Str(1.4:2:1, T);
   S := T + ' Truncs to ' + IntToStr(Trunc(1.4)) + #13#10;
   Str(1.5:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(1.5)) + #13#10;
   Str(1.6:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(1.6)) + #13#10;
   Str(-1.4:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(-1.4)) + #13#10;
   Str(-1.5:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(-1.5)) + #13#10;
   Str(-1.6:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(-1.6)) + #13#10;
   Str(2.5:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(2.5)) + #13#10;
   Str(-2.5:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(-2.5)) + #13#10;
   Str(-2.6:2:1, T);
   S := S + T + ' Truncs to ' + IntToStr(Trunc(-2.6));
   MessageDlg(S, mtInformation, [mbOk], 0, mbOk);
end;

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