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Implement remainderl() as a wrapper around remquol(). The extra work

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remquol() performs to compute the quotient is negligible.
This commit is contained in:
David Schultz 2008-03-30 20:47:42 +00:00
parent cef56f9d6d
commit a2e5f27559
2 changed files with 44 additions and 0 deletions
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6
lib/msun/src/e_remainder.c
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@ -23,6 +23,8 @@ __FBSDID("$FreeBSD$");
* Based on fmod() return x-[x/p]chopped*p exactlp.
*/
#include <float.h>
#include "math.h"
#include "math_private.h"
@ -71,3 +73,7 @@ __ieee754_remainder(double x, double p)
SET_HIGH_WORD(x,hx^sx);
return x;
}
#if LDBL_MANT_DIG == 53
__weak_reference(remainder, remainderl);
#endif

38
lib/msun/src/e_remainderl.c Normal file
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@ -0,0 +1,38 @@
/*-
* Copyright (c) 2008 David Schultz <das@FreeBSD.ORG>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <math.h>
long double
remainderl(long double x, long double y)
{
int quo;
return (remquol(x, y, &quo));
}