- 80-bit and quad precision trigonometric and other most

important functions: acosl, asinl, atanl, atan2l, cosl,
sinl, tanl, exp2l, frexpl, ilogbl, ldexpl, logbl, scalbnl,
fabsl, hypotl, powl, sqrtl, rintl, copysignl, nanl, fdiml,
fmaxl, fminl.  mostly taken from freebsd, needed alot of
changes to adapt.  note, these are all c versions;  and are
quite slow when architectures have, e.g. sqrt.  assembly
versions will be added afterwards
- make them .weak/__weak_alias to the double precision
versions on other archs
- no need to have two finites.  finite() and finitef() are
non-standard 3BSD obsolete versions of isfinite.  remove
from libm.  make them weak_alias in libc to __isfinite and
__isfinitef instead.  similarly make 3BSD obsolete versions
of isinf, isinff, isnan, isnanf weak_aliases to C99's
__isinf, __isinff, __isnan, __isnanf
- remove unused infinity.c.  the c library has infinities
for each supported platform
- use STRICT_ASSIGN cast hack for _kernel_rem_pio2, so that
the double version has a chance of working on i386 with
extra precision
- avoid storing multiple copies of the pi/2 array, since
it won't vary
- bump major due to removed finite/finitef.  although they
will be in libc, which anything is linked to, minor bump
might be enough
ok millert@.   tested by sthen@, jsg@, ajacoutot@, kili@, naddy@

1 files changed, 10 insertions, 1 deletions

diff --git a/lib/libm/src/s_cos.c b/lib/libm/src/s_cos.c
index 54bf0e07d39..fa46074cfe5 100644
--- a/lib/libm/src/s_cos.c
+++ b/lib/libm/src/s_cos.c
@@ -45,7 +45,10 @@ static char rcsid[] = "$NetBSD: s_cos.c,v 1.7 1995/05/10 20:47:02 jtc Exp $";
  *	TRIG(x) returns trig(x) nearly rounded 
  */
 
-#include "math.h"
+#include <machine/cdefs.h>
+#include <float.h>
+#include <math.h>
+
 #include "math_private.h"
 
 double
@@ -76,3 +79,9 @@ cos(double x)
 	    }
 	}
 }
+
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(cosl, cos);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */