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-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_cosl.c88
1 files changed, 0 insertions, 88 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_cosl.c b/sysdeps/ieee754/ldbl-128ibm/s_cosl.c
deleted file mode 100644
index 59a8196..0000000
--- a/sysdeps/ieee754/ldbl-128ibm/s_cosl.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* s_cosl.c -- long double version of s_cos.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
- */
-
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-/* cosl(x)
- * Return cosine function of x.
- *
- * kernel function:
- * __kernel_sinl ... sine function on [-pi/4,pi/4]
- * __kernel_cosl ... cosine function on [-pi/4,pi/4]
- * __ieee754_rem_pio2l ... 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"
-#include <math_ldbl_opt.h>
-
-#ifdef __STDC__
- long double __cosl(long double x)
-#else
- long double __cosl(x)
- long double x;
-#endif
-{
- long double y[2],z=0.0L;
- int64_t n, ix;
-
- /* High word of x. */
- GET_LDOUBLE_MSW64(ix,x);
-
- /* |x| ~< pi/4 */
- ix &= 0x7fffffffffffffffLL;
- if(ix <= 0x3fe921fb54442d18LL)
- return __kernel_cosl(x,z);
-
- /* cos(Inf or NaN) is NaN */
- else if (ix>=0x7ff0000000000000LL)
- return x-x;
-
- /* argument reduction needed */
- else {
- n = __ieee754_rem_pio2l(x,y);
- switch(n&3) {
- case 0:
- return __kernel_cosl(y[0],y[1]);
- case 1:
- return -__kernel_sinl(y[0],y[1],1);
- case 2:
- return -__kernel_cosl(y[0],y[1]);
- default:
- return __kernel_sinl(y[0],y[1],1);
- }
- }
-}
-long_double_symbol (libm, __cosl, cosl);