Source reorganization. In short:

  * Added directories and moved related files into them:
      - src for the MPFR source files (to build the library).
      - doc for documentation files (except INSTALL, README...).
      - tools for various tools (scripts) and mbench.
      - tune for tuneup-related source files.
      - other for other source files (not distributed in tarballs).
    Existing directories:
      - tests for the source files of the test suite (make check).
      - examples for examples.
      - m4 for m4 files.
  * Renamed configure.in to configure.ac.
  * Added/updated Makefile.am files where needed.
  * Updated acinclude.m4 and configure.ac (AC_CONFIG_FILES line).
  * Updated the documentation (INSTALL, README, doc/README.dev and
    doc/mpfr.texi).
  * Updated NEWS and TODO.
  * Updated the scripts now in tools.

The following script was used:

#!/usr/bin/env zsh
svn mkdir doc other src tools tune
svn mv ${${(M)$(sed -n '/libmpfr_la_SOURCES/,/[^\]$/p' \
         Makefile.am):#*.[ch]}:#get_patches.c} mparam_h.in \
       round_raw_generic.c jyn_asympt.c src
svn mv mbench check_inits_clears coverage get_patches.sh mpfrlint \
  nightly-test update-patchv update-version tools
svn mv bidimensional_sample.c speed.c tuneup.c tune
svn mv *.{c,h} other
svn mv FAQ.html README.dev algorithm* faq.xsl fdl.texi mpfr.texi \
  update-faq doc
svn mv configure.in configure.ac
svn cp Makefile.am src/Makefile.am
svn rm replace_all
[Modifying some files, see above]
svn add doc/Makefile.am
svn add tune/Makefile.am

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@7087 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 54 insertions, 0 deletions

diff --git a/src/sub_ui.c b/src/sub_ui.c
new file mode 100644
index 000000000..ed184a1c0
--- /dev/null
+++ b/src/sub_ui.c
@@ -0,0 +1,54 @@
+/* mpfr_sub_ui -- subtract a floating-point number and a machine integer
+
+Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+Contributed by the Arenaire and Caramel projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+The GNU MPFR Library 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 Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MPFR Library; see the file COPYING.LESSER.  If not, see
+http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+
+#define MPFR_NEED_LONGLONG_H
+#include "mpfr-impl.h"
+
+int
+mpfr_sub_ui (mpfr_ptr y, mpfr_srcptr x, unsigned long int u, mpfr_rnd_t rnd_mode)
+{
+  if (MPFR_LIKELY (u != 0))  /* if u=0, do nothing */
+    {
+      mpfr_t uu;
+      mp_limb_t up[1];
+      unsigned long cnt;
+      int inex;
+
+      MPFR_SAVE_EXPO_DECL (expo);
+
+      MPFR_TMP_INIT1 (up, uu, GMP_NUMB_BITS);
+      MPFR_ASSERTN (u == (mp_limb_t) u);
+      count_leading_zeros (cnt, (mp_limb_t) u);
+      *up = (mp_limb_t) u << cnt;
+
+      /* Optimization note: Exponent save/restore operations may be
+         removed if mpfr_sub works even when uu is out-of-range. */
+      MPFR_SAVE_EXPO_MARK (expo);
+      MPFR_SET_EXP (uu, GMP_NUMB_BITS - cnt);
+      inex = mpfr_sub (y, x, uu, rnd_mode);
+      MPFR_SAVE_EXPO_FREE (expo);
+      return mpfr_check_range (y, inex, rnd_mode);
+    }
+  else
+    return mpfr_set (y, x, rnd_mode);
+}