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authorUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
commit9d13fb2413921c713f83efe331e8e4d219c62c6b (patch)
tree2d44d7ac45ab2d147eb8361bbff880c365aa8ad5 /math/w_log2l.c
parentb6ab06cef4670e02756bcdd4d2c33a49369a4346 (diff)
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Moved to csu/errno-loc.c.
Diffstat (limited to 'math/w_log2l.c')
-rw-r--r--math/w_log2l.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/math/w_log2l.c b/math/w_log2l.c
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+++ b/math/w_log2l.c
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+/*
+ * wrapper log2l(X)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+long double
+__log2l (long double x)	/* wrapper log2l */
+{
+#ifdef _IEEE_LIBM
+  return __ieee754_log2l (x);
+#else
+  long double z;
+  z = __ieee754_log2l (x);
+  if (_LIB_VERSION == _IEEE_ || __isnanl (x)) return z;
+  if (x <= 0.0)
+    {
+      if (x == 0.0)
+	return __kernel_standard (x, x, 248); /* log2l (0) */
+      else
+	return __kernel_standard (x, x, 249); /* log2l (x < 0) */
+    }
+  else
+    return z;
+#endif
+}
+weak_alias (__log2l, log2l)