X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Fremainderf.c;h=420d3bfc447b2ef14ed93266da2abc082fc40fc5;hb=a2a328bd896fa909542b492601e3689119b95de0;hp=61c3c660db78c2dc05954db9c57966c4dcae2d8c;hpb=93a50a26cd0f9efc59cc83daae7b2d916b327ab1;p=musl

diff --git a/src/math/remainderf.c b/src/math/remainderf.c
index 61c3c660..420d3bfc 100644
--- a/src/math/remainderf.c
+++ b/src/math/remainderf.c
@@ -1,64 +1,10 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/e_remainderf.c */
-/*
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
+#include <math.h>
+#include "libc.h"
 
-#include "libm.h"
-
-static const float zero = 0.0;
-
-float remainderf(float x, float p)
+float remainderf(float x, float y)
 {
-	int32_t hx,hp;
-	uint32_t sx;
-	float p_half;
-
-	GET_FLOAT_WORD(hx, x);
-	GET_FLOAT_WORD(hp, p);
-	sx = hx & 0x80000000;
-	hp &= 0x7fffffff;
-	hx &= 0x7fffffff;
-
-	/* purge off exception values */
-	if (hp == 0)  /* p = 0 */
-		return (x*p)/(x*p);
-	if (hx >= 0x7f800000 || hp > 0x7f800000)  /* x not finite, p is NaN */
-		// FIXME: why long double?
-		return ((long double)x*p)/((long double)x*p);
-
-	if (hp <= 0x7effffff)
-		x = fmodf(x, p + p);  /* now x < 2p */
-	if (hx - hp == 0)
-		return zero*x;
-	x = fabsf(x);
-	p = fabsf(p);
-	if (hp < 0x01000000) {
-		if (x + x > p) {
-			x -= p;
-			if (x + x >= p)
-				x -= p;
-		}
-	} else {
-		p_half = 0.5f*p;
-		if (x > p_half) {
-			x -= p;
-			if (x >= p_half)
-				x -= p;
-		}
-	}
-	GET_FLOAT_WORD(hx, x);
-	if ((hx & 0x7fffffff) == 0)
-		hx = 0;
-	SET_FLOAT_WORD(x, hx ^ sx);
-	return x;
+	int q;
+	return remquof(x, y, &q);
 }
+
+weak_alias(remainderf, dremf);