freepascal.compiler/rtl/inc/gencurr.inc

{
    This file is part of the Free Pascal run time library.
    Copyright (c) 1999-2007 by Several contributors

    Generic mathematical routines (on type currency)

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
}

{$ifdef FPC_CURRENCY_IS_INT64}

    function trunc(c : currency) : int64;
      begin
        { the type conversion includes dividing by 10000 }
        result := int64(c)
      end;

{$ifndef cpujvm}
    function trunc(c : comp) : int64;
{$else not cpujvm}
    function trunc_comp(c : comp) : int64;
{$endif cpujvm}
      begin
        result := c
      end;


    function round(c : currency) : int64;
      var
        rem, absrem: currency;
      begin
        { (int64(tmyrec(c))(+/-)5000) div 10000 can overflow }
        result := int64(c);
        rem := c - currency(result);
        absrem := abs(rem);
        if (absrem > 0.5) or
           ((absrem = 0.5) and
            (rem > 0)) then
          if (rem > 0) then
            inc(result)
          else
            dec(result);
      end;


{$ifndef cpujvm}
    function round(c : comp) : int64;
{$else not cpujvm}
    function round_comp(c : comp) : int64;
{$endif cpujvm}
      begin
        result := c
      end;

{$endif FPC_CURRENCY_IS_INT64}