1 files changed, 0 insertions, 81 deletions
diff --git a/sysdeps/libm-ieee754/s_tanl.c b/sysdeps/libm-ieee754/s_tanl.c
deleted file mode 100644
index 97a0b27f32..0000000000
--- a/sysdeps/libm-ieee754/s_tanl.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* s_tanl.c -- long double version of s_tan.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
- */
-
-/*
- * ====================================================
- * 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 char rcsid[] = "$NetBSD: $";
-#endif
-
-/* tanl(x)
- * Return tangent function of x.
- *
- * kernel function:
- *	__kernel_tanl		... tangent 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"
-
-#ifdef __STDC__
-	long double __tanl(long double x)
-#else
-	long double __tanl(x)
-	long double x;
-#endif
-{
-	long double y[2],z=0.0;
-	int32_t n, se;
-
-    /* High word of x. */
-	GET_LDOUBLE_EXP(se,x);
-
-    /* |x| ~< pi/4 */
-	se &= 0x7fff;
-	if(se <= 0x3ffe) return __kernel_tanl(x,z,1);
-
-    /* tan(Inf or NaN) is NaN */
-	else if (se==0x7fff) return x-x;		/* NaN */
-
-    /* argument reduction needed */
-	else {
-	    n = __ieee754_rem_pio2l(x,y);
-	    return __kernel_tanl(y[0],y[1],1-((n&1)<<1)); /*   1 -- n even
-							-1 -- n odd */
-	}
-}
-weak_alias (__tanl, tanl)