auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 82 deletions

diff --git a/libm/src/s_cos.c b/libm/src/s_cos.c
deleted file mode 100644
index 0faf91e..0000000
--- a/libm/src/s_cos.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* @(#)s_cos.c 5.1 93/09/24 */
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-#ifndef lint
-static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_cos.c,v 1.10 2005/10/24 14:08:36 bde Exp $";
-#endif
-
-/* cos(x)
- * Return cosine function of x.
- *
- * kernel function:
- *	__kernel_sin		... sine function on [-pi/4,pi/4]
- *	__kernel_cos		... cosine function on [-pi/4,pi/4]
- *	__ieee754_rem_pio2	... argument reduction routine
- *
- * Method.
- *      Let S,C and T denote the sin, cos and tan respectively on
- *	[-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
- *	in [-pi/4 , +pi/4], and let n = k mod 4.
- *	We have
- *
- *          n        sin(x)      cos(x)        tan(x)
- *     ----------------------------------------------------------
- *	    0	       S	   C		 T
- *	    1	       C	  -S		-1/T
- *	    2	      -S	  -C		 T
- *	    3	      -C	   S		-1/T
- *     ----------------------------------------------------------
- *
- * Special cases:
- *      Let trig be any of sin, cos, or tan.
- *      trig(+-INF)  is NaN, with signals;
- *      trig(NaN)    is that NaN;
- *
- * Accuracy:
- *	TRIG(x) returns trig(x) nearly rounded
- */
-
-#include "math.h"
-#include "math_private.h"
-
-double
-cos(double x)
-{
-	double y[2],z=0.0;
-	int32_t n, ix;
-
-    /* High word of x. */
-	GET_HIGH_WORD(ix,x);
-
-    /* |x| ~< pi/4 */
-	ix &= 0x7fffffff;
-	if(ix <= 0x3fe921fb) {
-	    if(ix<0x3e400000)			/* if x < 2**-27 */
-		if(((int)x)==0) return 1.0;	/* generate inexact */
-	    return __kernel_cos(x,z);
-	}
-
-    /* cos(Inf or NaN) is NaN */
-	else if (ix>=0x7ff00000) return x-x;
-
-    /* argument reduction needed */
-	else {
-	    n = __ieee754_rem_pio2(x,y);
-	    switch(n&3) {
-		case 0: return  __kernel_cos(y[0],y[1]);
-		case 1: return -__kernel_sin(y[0],y[1],1);
-		case 2: return -__kernel_cos(y[0],y[1]);
-		default:
-		        return  __kernel_sin(y[0],y[1],1);
-	    }
-	}
-}