X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ftanl.c;h=ae70884c711137540da57c22eea47f28bf359ce5;hb=cd56634a4a8179fd5a4419fbb3e27211b042ab1c;hp=6a6dc6d85853dc7a42da52bb75945253fc6af0e9;hpb=692679fcbebba0095bae0f1f1a99bd1f0f5a0476;p=gnulib.git

diff --git a/lib/tanl.c b/lib/tanl.c
index 6a6dc6d85..ae70884c7 100644
--- a/lib/tanl.c
+++ b/lib/tanl.c
@@ -19,6 +19,19 @@
 /* Specification.  */
 #include <math.h>
 
+#if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
+
+long double
+tanl (long double x)
+{
+  return tan (x);
+}
+
+#else
+
+/* Code based on glibc/sysdeps/ieee754/ldbl-128/s_tanl.c
+   and           glibc/sysdeps/ieee754/ldbl-128/k_tanl.c.  */
+
 /* tanl(x)
  * Return tangent function of x.
  *
@@ -49,7 +62,7 @@
  *      TRIG(x) returns trig(x) nearly rounded
  */
 
-#include "trigl.h"
+# include "trigl.h"
 
 /*
  * ====================================================
@@ -208,16 +221,18 @@ tanl (long double x)
     }
 }
 
+#endif
+
 #if 0
 int
 main (void)
 {
-  printf ("%.16Lg\n", tanl(0.7853981633974483096156608458198757210492));
-  printf ("%.16Lg\n", tanl(-0.7853981633974483096156608458198757210492));
-  printf ("%.16Lg\n", tanl(0.7853981633974483096156608458198757210492 *3));
-  printf ("%.16Lg\n", tanl(-0.7853981633974483096156608458198757210492 *31));
-  printf ("%.16Lg\n", tanl(0.7853981633974483096156608458198757210492 / 2));
-  printf ("%.16Lg\n", tanl(0.7853981633974483096156608458198757210492 * 3/2));
-  printf ("%.16Lg\n", tanl(0.7853981633974483096156608458198757210492 * 5/2));
+  printf ("%.16Lg\n", tanl (0.7853981633974483096156608458198757210492));
+  printf ("%.16Lg\n", tanl (-0.7853981633974483096156608458198757210492));
+  printf ("%.16Lg\n", tanl (0.7853981633974483096156608458198757210492 *3));
+  printf ("%.16Lg\n", tanl (-0.7853981633974483096156608458198757210492 *31));
+  printf ("%.16Lg\n", tanl (0.7853981633974483096156608458198757210492 / 2));
+  printf ("%.16Lg\n", tanl (0.7853981633974483096156608458198757210492 * 3/2));
+  printf ("%.16Lg\n", tanl (0.7853981633974483096156608458198757210492 * 5/2));
 }
 #endif