77 lines
3.1 KiB
C
77 lines
3.1 KiB
C
/****************************************************************************
|
|
* libs/libc/stdlib/lib_div.c
|
|
*
|
|
* Copyright (C) 2015 Stavros Polymenis. All rights reserved.
|
|
* Author: Stavros Polymenis <sp@orbitalfox.com>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <nuttx/compiler.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: div
|
|
*
|
|
* Description:
|
|
* The div() function computes the quotient and remainder of the division
|
|
* of the numerator 'numer' by the denominator 'denom". If the division is
|
|
* inexact, the resulting quotient is the integer of lesser magnitude that
|
|
* is the nearest to the algebraic quotient. If the result cannot be
|
|
* represented, the behavior is undefined; otherwise, quot * denom + rem
|
|
* will equal 'numer'.
|
|
*
|
|
* Input Parameters:
|
|
* numer - Numerator of the Division
|
|
* denom - Denominator of the division
|
|
*
|
|
* Returned Value:
|
|
* The result of the devision represent as values of type div_t
|
|
*
|
|
****************************************************************************/
|
|
|
|
div_t div(int numer, int denom)
|
|
{
|
|
div_t f;
|
|
|
|
f.quot = numer / denom;
|
|
f.rem = numer % denom;
|
|
return f;
|
|
}
|