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-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/cosf.c78
1 files changed, 0 insertions, 78 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/cosf.c b/lib/mlibc/options/ansi/musl-generic-math/cosf.c
deleted file mode 100644
index 23f3e5b..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/cosf.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/s_cosf.c */
-/*
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Optimized by Bruce D. Evans.
- */
-/*
- * ====================================================
- * 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 "libm.h"
-
-/* Small multiples of pi/2 rounded to double precision. */
-static const double
-c1pio2 = 1*M_PI_2, /* 0x3FF921FB, 0x54442D18 */
-c2pio2 = 2*M_PI_2, /* 0x400921FB, 0x54442D18 */
-c3pio2 = 3*M_PI_2, /* 0x4012D97C, 0x7F3321D2 */
-c4pio2 = 4*M_PI_2; /* 0x401921FB, 0x54442D18 */
-
-float cosf(float x)
-{
- double y;
- uint32_t ix;
- unsigned n, sign;
-
- GET_FLOAT_WORD(ix, x);
- sign = ix >> 31;
- ix &= 0x7fffffff;
-
- if (ix <= 0x3f490fda) { /* |x| ~<= pi/4 */
- if (ix < 0x39800000) { /* |x| < 2**-12 */
- /* raise inexact if x != 0 */
- FORCE_EVAL(x + 0x1p120f);
- return 1.0f;
- }
- return __cosdf(x);
- }
- if (ix <= 0x407b53d1) { /* |x| ~<= 5*pi/4 */
- if (ix > 0x4016cbe3) /* |x| ~> 3*pi/4 */
- return -__cosdf(sign ? x+c2pio2 : x-c2pio2);
- else {
- if (sign)
- return __sindf(x + c1pio2);
- else
- return __sindf(c1pio2 - x);
- }
- }
- if (ix <= 0x40e231d5) { /* |x| ~<= 9*pi/4 */
- if (ix > 0x40afeddf) /* |x| ~> 7*pi/4 */
- return __cosdf(sign ? x+c4pio2 : x-c4pio2);
- else {
- if (sign)
- return __sindf(-x - c3pio2);
- else
- return __sindf(x - c3pio2);
- }
- }
-
- /* cos(Inf or NaN) is NaN */
- if (ix >= 0x7f800000)
- return x-x;
-
- /* general argument reduction needed */
- n = __rem_pio2f(x,&y);
- switch (n&3) {
- case 0: return __cosdf(y);
- case 1: return __sindf(-y);
- case 2: return -__cosdf(y);
- default:
- return __sindf(y);
- }
-}