first commit of the new libm!

[musl] / src / math / e_remainder.c

diff --git a/src/math/e_remainder.c b/src/math/e_remainder.c
deleted file mode 100644 (file)
index 9cb5691..0000000
--- a/src/math/e_remainder.c
+++ /dev/null
@@ -1,69 +0,0 @@
-
-/* @(#)e_remainder.c 1.3 95/01/18 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunSoft, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- */
-
-/* remainder(x,p)
- * Return :                  
- *      returns  x REM p  =  x - [x/p]*p as if in infinite 
- *      precise arithmetic, where [x/p] is the (infinite bit) 
- *      integer nearest x/p (in half way case choose the even one).
- * Method : 
- *      Based on fmod() return x-[x/p]chopped*p exactlp.
- */
-
-#include <math.h>
-#include "math_private.h"
-
-static const double zero = 0.0;
-
-
-double
-remainder(double x, double p)
-{
-        int32_t hx,hp;
-        uint32_t sx,lx,lp;
-        double p_half;
-
-        EXTRACT_WORDS(hx,lx,x);
-        EXTRACT_WORDS(hp,lp,p);
-        sx = hx&0x80000000;
-        hp &= 0x7fffffff;
-        hx &= 0x7fffffff;
-
-    /* purge off exception values */
-        if((hp|lp)==0) return (x*p)/(x*p);      /* p = 0 */
-        if((hx>=0x7ff00000)||                   /* x not finite */
-          ((hp>=0x7ff00000)&&                   /* p is NaN */
-          (((hp-0x7ff00000)|lp)!=0)))
-            return (x*p)/(x*p);
-
-
-        if (hp<=0x7fdfffff) x = fmod(x,p+p);  /* now x < 2p */
-        if (((hx-hp)|(lx-lp))==0) return zero*x;
-        x  = fabs(x);
-        p  = fabs(p);
-        if (hp<0x00200000) {
-            if(x+x>p) {
-                x-=p;
-                if(x+x>=p) x -= p;
-            }
-        } else {
-            p_half = 0.5*p;
-            if(x>p_half) {
-                x-=p;
-                if(x>=p_half) x -= p;
-            }
-        }
-        GET_HIGH_WORD(hx,x);
-        SET_HIGH_WORD(x,hx^sx);
-        return x;
-}