MdePkg/Library/BaseLib/DivS64x64Remainder.c

/** @file
  Math worker functions.

  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php.

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/




#include "BaseLibInternals.h"

/**
  Divides a 64-bit signed integer by a 64-bit signed integer and generates a
  64-bit signed result and a optional 64-bit signed remainder.

  This function divides the 64-bit signed value Dividend by the 64-bit signed
  value Divisor and generates a 64-bit signed quotient. If Remainder is not
  NULL, then the 64-bit signed remainder is returned in Remainder. This
  function returns the 64-bit signed quotient.

  It is the caller's responsibility to not call this function with a Divisor of 0.
  If Divisor is 0, then the quotient and remainder should be assumed to be 
  the largest negative integer.

  If Divisor is 0, then ASSERT().

  @param  Dividend  A 64-bit signed value.
  @param  Divisor   A 64-bit signed value.
  @param  Remainder A pointer to a 64-bit signed value. This parameter is
                    optional and may be NULL.

  @return Dividend / Divisor

**/
INT64
EFIAPI
DivS64x64Remainder (
  IN      INT64                     Dividend,
  IN      INT64                     Divisor,
  OUT     INT64                     *Remainder  OPTIONAL
  )
{
  ASSERT (Divisor != 0);
  return InternalMathDivRemS64x64 (Dividend, Divisor, Remainder);
}