1 files changed, 0 insertions, 77 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/cos.c b/lib/mlibc/options/ansi/musl-generic-math/cos.c
deleted file mode 100644
index ee97f68..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/cos.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/s_cos.c */
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-/* cos(x)
- * Return cosine function of x.
- *
- * kernel function:
- *      __sin           ... sine function on [-pi/4,pi/4]
- *      __cos           ... cosine function on [-pi/4,pi/4]
- *      __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 "libm.h"
-
-double cos(double x)
-{
-	double y[2];
-	uint32_t ix;
-	unsigned n;
-
-	GET_HIGH_WORD(ix, x);
-	ix &= 0x7fffffff;
-
-	/* |x| ~< pi/4 */
-	if (ix <= 0x3fe921fb) {
-		if (ix < 0x3e46a09e) {  /* |x| < 2**-27 * sqrt(2) */
-			/* raise inexact if x!=0 */
-			FORCE_EVAL(x + 0x1p120f);
-			return 1.0;
-		}
-		return __cos(x, 0);
-	}
-
-	/* cos(Inf or NaN) is NaN */
-	if (ix >= 0x7ff00000)
-		return x-x;
-
-	/* argument reduction */
-	n = __rem_pio2(x, y);
-	switch (n&3) {
-	case 0: return  __cos(y[0], y[1]);
-	case 1: return -__sin(y[0], y[1], 1);
-	case 2: return -__cos(y[0], y[1]);
-	default:
-		return  __sin(y[0], y[1], 1);
-	}
-}