1 files changed, 0 insertions, 64 deletions
diff --git a/gl/signbitf.c b/gl/signbitf.c
deleted file mode 100644
index f133be57f5..0000000000
--- a/gl/signbitf.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* signbit() macro: Determine the sign bit of a floating-point number.
-   Copyright (C) 2007, 2009-2013 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <math.h>
-
-#include <string.h>
-#include "isnanf-nolibm.h"
-#include "float+.h"
-
-#ifdef gl_signbitf_OPTIMIZED_MACRO
-# undef gl_signbitf
-#endif
-
-int
-gl_signbitf (float arg)
-{
-#if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT
-  /* The use of a union to extract the bits of the representation of a
-     'long double' is safe in practice, despite of the "aliasing rules" of
-     C99, because the GCC docs say
-       "Even with '-fstrict-aliasing', type-punning is allowed, provided the
-        memory is accessed through the union type."
-     and similarly for other compilers.  */
-# define NWORDS \
-    ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
-  union { float value; unsigned int word[NWORDS]; } m;
-  m.value = arg;
-  return (m.word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1;
-#elif HAVE_COPYSIGNF_IN_LIBC
-  return copysignf (1.0f, arg) < 0;
-#else
-  /* This does not do the right thing for NaN, but this is irrelevant for
-     most use cases.  */
-  if (isnanf (arg))
-    return 0;
-  if (arg < 0.0f)
-    return 1;
-  else if (arg == 0.0f)
-    {
-      /* Distinguish 0.0f and -0.0f.  */
-      static float plus_zero = 0.0f;
-      float arg_mem = arg;
-      return (memcmp (&plus_zero, &arg_mem, SIZEOF_FLT) != 0);
-    }
-  else
-    return 0;
-#endif
-}