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Diffstat (limited to '3rdparty/SDL2/src/libm/s_cos.c')
-rw-r--r--3rdparty/SDL2/src/libm/s_cos.c91
1 files changed, 0 insertions, 91 deletions
diff --git a/3rdparty/SDL2/src/libm/s_cos.c b/3rdparty/SDL2/src/libm/s_cos.c
deleted file mode 100644
index 66b156c9f52..00000000000
--- a/3rdparty/SDL2/src/libm/s_cos.c
+++ /dev/null
@@ -1,91 +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.
- * ====================================================
- */
-
-#if defined(LIBM_SCCS) && !defined(lint)
-static const char rcsid[] =
- "$NetBSD: s_cos.c,v 1.7 1995/05/10 20:47:02 jtc 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_libm.h"
-#include "math_private.h"
-
-libm_hidden_proto(cos)
-#ifdef __STDC__
- double cos(double x)
-#else
- double cos(x)
- double x;
-#endif
-{
- 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)
- 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);
- }
- }
-}
-
-libm_hidden_def(cos)