gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / lib / ceill.c

diff --git a/lib/ceill.c b/lib/ceill.c
index b3c0726..5e49079 100644 (file)
--- a/lib/ceill.c
+++ b/lib/ceill.c
@@ -1,43 +1,37 @@
-/* Emulation for ceill.
-   Contributed by Paolo Bonzini
+/* Round towards positive infinity.
+   Copyright (C) 2007, 2009-2013 Free Software Foundation, Inc.
 
-   Copyright 2002, 2003 Free Software Foundation, Inc.
-
-   This file is part of gnulib.
-
-   This program is free software; you can redistribute it and/or modify
+   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 2, or (at your option)
-   any later version.
+   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, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
-#include <float.h>
+#include <config.h>
 
-#include "mathl.h"
+#if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
 
-/* To compute the integer part of X, sum a big enough
-   integer so that the precision of the floating point
-   number is exactly 1.  */
+/* Specification.  */
+# include <math.h>
 
 long double
-ceill(long double x)
+ceill (long double x)
 {
-  long double y;
-  if (x < 0.0L)
-    y = -(1.0L / LDBL_EPSILON - x - 1.0 / LDBL_EPSILON);
-  else
-    y = 1.0L / LDBL_EPSILON + x - 1.0 / LDBL_EPSILON;
-
-  if (y < x)
-    return y + 1.0L;
-  else
-    return y;
+  return ceil (x);
 }
+
+#else
+
+# define USE_LONG_DOUBLE
+# include "ceil.c"
+
+#endif