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-rw-r--r--patches/mpfr/3.1.0/110-mpfr_unlikely.patch50
-rw-r--r--patches/mpfr/3.1.0/120-lib-search-path.patch96
-rw-r--r--patches/mpfr/3.1.0/130-vasprintf.patch247
-rw-r--r--patches/mpfr/3.1.0/140-gmp41compat.patch166
-rw-r--r--patches/mpfr/3.1.0/150-logging-freeze.patch69
-rw-r--r--patches/mpfr/3.1.0/160-logging-varfmt.patch45
-rw-r--r--patches/mpfr/3.1.0/170-large-prec.patch591
-rw-r--r--patches/mpfr/3.1.0/180-__gmp_const.patch52
-rw-r--r--patches/mpfr/3.1.0/190-gamma-underflow.patch93
-rw-r--r--patches/mpfr/3.1.0/200-gamma-overunderflow.patch487
10 files changed, 1896 insertions, 0 deletions
diff --git a/patches/mpfr/3.1.0/110-mpfr_unlikely.patch b/patches/mpfr/3.1.0/110-mpfr_unlikely.patch
new file mode 100644
index 0000000..437b1a2
--- /dev/null
+++ b/patches/mpfr/3.1.0/110-mpfr_unlikely.patch
@@ -0,0 +1,50 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2011-10-05 21:39:57.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2011-10-05 21:39:57.000000000 +0000
+@@ -0,0 +1 @@
++mpfr_unlikely
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2011-10-03 08:17:15.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2011-10-05 21:39:57.000000000 +0000
+@@ -1 +1 @@
+-3.1.0
++3.1.0-p1
+diff -Naurd mpfr-3.1.0-a/src/mpfr-impl.h mpfr-3.1.0-b/src/mpfr-impl.h
+--- mpfr-3.1.0-a/src/mpfr-impl.h 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr-impl.h 2011-10-05 21:39:57.000000000 +0000
+@@ -988,10 +988,11 @@
+ ******************************************************/
+
+ /* Theses macros help the compiler to determine if a test is
+- * likely or unlikely. */
++ likely or unlikely. The !! is necessary in case x is larger
++ than a long. */
+ #if __MPFR_GNUC(3,0) || __MPFR_ICC(8,1,0)
+ # define MPFR_LIKELY(x) (__builtin_expect(!!(x),1))
+-# define MPFR_UNLIKELY(x) (__builtin_expect((x),0))
++# define MPFR_UNLIKELY(x) (__builtin_expect(!!(x),0))
+ #else
+ # define MPFR_LIKELY(x) (x)
+ # define MPFR_UNLIKELY(x) (x)
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2011-10-05 21:39:57.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0"
++#define MPFR_VERSION_STRING "3.1.0-p1"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2011-10-05 21:39:57.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0";
++ return "3.1.0-p1";
+ }
diff --git a/patches/mpfr/3.1.0/120-lib-search-path.patch b/patches/mpfr/3.1.0/120-lib-search-path.patch
new file mode 100644
index 0000000..4714ac9
--- /dev/null
+++ b/patches/mpfr/3.1.0/120-lib-search-path.patch
@@ -0,0 +1,96 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2011-10-14 10:43:32.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2011-10-14 10:43:32.000000000 +0000
+@@ -0,0 +1 @@
++lib-search-path
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2011-10-05 21:39:57.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2011-10-14 10:43:32.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p1
++3.1.0-p2
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2011-10-05 21:39:57.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2011-10-14 10:43:32.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p1"
++#define MPFR_VERSION_STRING "3.1.0-p2"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2011-10-05 21:39:57.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2011-10-14 10:43:32.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p1";
++ return "3.1.0-p2";
+ }
+diff -Naurd mpfr-3.1.0-a/tests/Makefile.am mpfr-3.1.0-b/tests/Makefile.am
+--- mpfr-3.1.0-a/tests/Makefile.am 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/tests/Makefile.am 2011-10-03 08:17:14.000000000 +0000
+@@ -65,8 +65,24 @@
+ TESTS = $(check_PROGRAMS)
+ TESTS_ENVIRONMENT = MPFR_QUIET=1 $(VALGRIND)
+
+-# Option to prevent libtool from generating wrapper scripts for the tests.
++# The -no-install option prevents libtool from generating wrapper scripts
++# for the tests.
+ # This is useful to easily run the test scripts under valgrind or gdb.
+ # See discussion http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/28033
+ # http://article.gmane.org/gmane.comp.lib.gnulib.bugs/28140 in particular.
+-AM_LDFLAGS = -no-install
++#
++# The -L$(top_builddir)/src/.libs option is necessary for some platforms,
++# such as HP-UX, when --with-gmp or --with-gmp-lib is used and an old MPFR
++# library is already installed in the corresponding lib directory: its
++# purpose is to make sure that the local .libs comes first in the library
++# search path (otherwise the tests are linked against the old MPFR library
++# by the LINK command -- see the generated Makefile). See:
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00042.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00043.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00044.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00066.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00065.html
++# and
++# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9728
++#
++AM_LDFLAGS = -no-install -L$(top_builddir)/src/.libs
+diff -Naurd mpfr-3.1.0-a/tests/Makefile.in mpfr-3.1.0-b/tests/Makefile.in
+--- mpfr-3.1.0-a/tests/Makefile.in 2011-10-03 08:17:35.000000000 +0000
++++ mpfr-3.1.0-b/tests/Makefile.in 2011-10-03 08:17:35.000000000 +0000
+@@ -1124,11 +1124,27 @@
+ TESTS = $(check_PROGRAMS)
+ TESTS_ENVIRONMENT = MPFR_QUIET=1 $(VALGRIND)
+
+-# Option to prevent libtool from generating wrapper scripts for the tests.
++# The -no-install option prevents libtool from generating wrapper scripts
++# for the tests.
+ # This is useful to easily run the test scripts under valgrind or gdb.
+ # See discussion http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/28033
+ # http://article.gmane.org/gmane.comp.lib.gnulib.bugs/28140 in particular.
+-AM_LDFLAGS = -no-install
++#
++# The -L$(top_builddir)/src/.libs option is necessary for some platforms,
++# such as HP-UX, when --with-gmp or --with-gmp-lib is used and an old MPFR
++# library is already installed in the corresponding lib directory: its
++# purpose is to make sure that the local .libs comes first in the library
++# search path (otherwise the tests are linked against the old MPFR library
++# by the LINK command -- see the generated Makefile). See:
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00042.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00043.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00044.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00066.html
++# http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00065.html
++# and
++# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9728
++#
++AM_LDFLAGS = -no-install -L$(top_builddir)/src/.libs
+ all: all-am
+
+ .SUFFIXES:
diff --git a/patches/mpfr/3.1.0/130-vasprintf.patch b/patches/mpfr/3.1.0/130-vasprintf.patch
new file mode 100644
index 0000000..aa1cfbc
--- /dev/null
+++ b/patches/mpfr/3.1.0/130-vasprintf.patch
@@ -0,0 +1,247 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2011-11-03 15:15:11.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2011-11-03 15:15:11.000000000 +0000
+@@ -0,0 +1 @@
++vasprintf
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2011-10-14 10:43:32.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2011-11-03 15:15:11.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p2
++3.1.0-p3
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2011-10-14 10:43:32.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2011-11-03 15:15:11.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p2"
++#define MPFR_VERSION_STRING "3.1.0-p3"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/vasprintf.c mpfr-3.1.0-b/src/vasprintf.c
+--- mpfr-3.1.0-a/src/vasprintf.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/vasprintf.c 2011-11-03 15:15:11.000000000 +0000
+@@ -1178,7 +1178,7 @@
+ mpfr_exp_t exp;
+ char * str;
+ const int spec_g = (spec.spec == 'g' || spec.spec == 'G');
+- const int keep_trailing_zeros = spec_g && spec.alt;
++ const int keep_trailing_zeros = !spec_g || spec.alt;
+
+ /* WARNING: an empty precision field is forbidden (it means precision = 6
+ and it should have been changed to 6 before the function call) */
+@@ -1356,7 +1356,7 @@
+ else
+ /* 1 <= |p| */
+ {
+- size_t nsd; /* Number of significant digits */
++ size_t str_len;
+
+ /* Determine the position of the most significant decimal digit. */
+ exp = floor_log10 (p);
+@@ -1365,12 +1365,10 @@
+ /* P is too large to print all its integral part digits */
+ return -1;
+
+- np->ip_size = exp + 1;
+-
+- nsd = spec.prec + np->ip_size;
+ if (dec_info == NULL)
+- {
+- str = mpfr_get_str (NULL, &exp, 10, nsd, p, spec.rnd_mode);
++ { /* this case occurs with mpfr_printf ("%.0RUf", x) with x=9.5 */
++ str =
++ mpfr_get_str (NULL, &exp, 10, spec.prec+exp+1, p, spec.rnd_mode);
+ register_string (np->sl, str);
+ }
+ else
+@@ -1379,81 +1377,60 @@
+ str = dec_info->str;
+ }
+ np->ip_ptr = MPFR_IS_NEG (p) ? ++str : str; /* skip sign */
++ str_len = strlen (str);
++
++ /* integral part */
++ if (exp > str_len)
++ /* mpfr_get_str gives no trailing zero when p is rounded up to the next
++ power of 10 (p integer, so no fractional part) */
++ {
++ np->ip_trailing_zeros = exp - str_len;
++ np->ip_size = str_len;
++ }
++ else
++ np->ip_size = exp;
+
+ if (spec.group)
+ /* thousands separator in integral part */
+ np->thousands_sep = MPFR_THOUSANDS_SEPARATOR;
+
+- if (nsd == 0 || (spec_g && !spec.alt))
+- /* compute how much non-zero digits in integral and fractional
+- parts */
++ /* fractional part */
++ str += np->ip_size;
++ str_len -= np->ip_size;
++ if (!keep_trailing_zeros)
++ /* remove trailing zeros, if any */
+ {
+- size_t str_len;
+- str_len = strlen (str); /* note: the sign has been skipped */
+-
+- if (exp > str_len)
+- /* mpfr_get_str doesn't give the trailing zeros when p is a
+- multiple of 10 (p integer, so no fractional part) */
+- {
+- np->ip_trailing_zeros = exp - str_len;
+- np->ip_size = str_len;
+- if (spec.alt)
+- np->point = MPFR_DECIMAL_POINT;
+- }
+- else
+- /* str may contain some digits which are in fractional part */
++ char *ptr = str + str_len - 1; /* pointer to the last digit of
++ str */
++ while ((*ptr == '0') && (str_len != 0))
+ {
+- char *ptr;
+-
+- ptr = str + str_len - 1; /* points to the end of str */
+- str_len -= np->ip_size; /* number of digits in fractional
+- part */
+-
+- if (!keep_trailing_zeros)
+- /* remove trailing zeros, if any */
+- {
+- while ((*ptr == '0') && (str_len != 0))
+- {
+- --ptr;
+- --str_len;
+- }
+- }
+-
+- if (str_len > INT_MAX)
+- /* too many digits in fractional part */
+- return -1;
+-
+- if (str_len != 0)
+- /* some digits in fractional part */
+- {
+- np->point = MPFR_DECIMAL_POINT;
+- np->fp_ptr = str + np->ip_size;
+- np->fp_size = str_len;
+- }
++ --ptr;
++ --str_len;
+ }
+ }
+- else
+- /* spec.prec digits in fractional part */
++
++ if (str_len > 0)
++ /* some nonzero digits in fractional part */
+ {
+- if (np->ip_size == exp - 1)
+- /* the absolute value of the number has been rounded up to a power
+- of ten.
+- Insert an additional zero in integral part and put the rest of
+- them in fractional part. */
+- np->ip_trailing_zeros = 1;
++ if (str_len > INT_MAX)
++ /* too many digits in fractional part */
++ return -1;
+
+- if (spec.prec != 0)
+- {
+- MPFR_ASSERTD (np->ip_size + np->ip_trailing_zeros == exp);
+- MPFR_ASSERTD (np->ip_size + spec.prec == nsd);
++ np->point = MPFR_DECIMAL_POINT;
++ np->fp_ptr = str;
++ np->fp_size = str_len;
++ }
+
+- np->point = MPFR_DECIMAL_POINT;
+- np->fp_ptr = str + np->ip_size;
+- np->fp_size = spec.prec;
+- }
+- else if (spec.alt)
+- np->point = MPFR_DECIMAL_POINT;
++ if (keep_trailing_zeros && str_len < spec.prec)
++ /* add missing trailing zeros */
++ {
++ np->point = MPFR_DECIMAL_POINT;
++ np->fp_trailing_zeros = spec.prec - np->fp_size;
+ }
++
++ if (spec.alt)
++ /* add decimal point even if no digits follow it */
++ np->point = MPFR_DECIMAL_POINT;
+ }
+
+ return 0;
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2011-10-14 10:43:32.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2011-11-03 15:15:11.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p2";
++ return "3.1.0-p3";
+ }
+diff -Naurd mpfr-3.1.0-a/tests/tsprintf.c mpfr-3.1.0-b/tests/tsprintf.c
+--- mpfr-3.1.0-a/tests/tsprintf.c 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/tests/tsprintf.c 2011-11-03 15:15:11.000000000 +0000
+@@ -475,6 +475,18 @@
+ check_sprintf ("-1.", "%- #0.1RG", x);
+
+ /* precision zero */
++ mpfr_set_d (x, 9.5, MPFR_RNDN);
++ check_sprintf ("9", "%.0RDf", x);
++ check_sprintf ("10", "%.0RUf", x);
++
++ mpfr_set_d (x, 19.5, MPFR_RNDN);
++ check_sprintf ("19", "%.0RDf", x);
++ check_sprintf ("20", "%.0RUf", x);
++
++ mpfr_set_d (x, 99.5, MPFR_RNDN);
++ check_sprintf ("99", "%.0RDf", x);
++ check_sprintf ("100", "%.0RUf", x);
++
+ mpfr_set_d (x, -9.5, MPFR_RNDN);
+ check_sprintf ("-10", "%.0RDf", x);
+ check_sprintf ("-10", "%.0RYf", x);
+@@ -1078,6 +1090,23 @@
+ mpfr_clear (x);
+ }
+
++static void
++bug20111102 (void)
++{
++ mpfr_t t;
++ char s[100];
++
++ mpfr_init2 (t, 84);
++ mpfr_set_str (t, "999.99999999999999999999", 10, MPFR_RNDN);
++ mpfr_sprintf (s, "%.20RNg", t);
++ if (strcmp (s, "1000") != 0)
++ {
++ printf ("Error in bug20111102, expected 1000, got %s\n", s);
++ exit (1);
++ }
++ mpfr_clear (t);
++}
++
+ /* In particular, the following test makes sure that the rounding
+ * for %Ra and %Rb is not done on the MPFR number itself (as it
+ * would overflow). Note: it has been reported on comp.std.c that
+@@ -1161,6 +1190,7 @@
+ locale = setlocale (LC_ALL, "C");
+ #endif
+
++ bug20111102 ();
+ native_types ();
+ hexadecimal ();
+ binary ();
diff --git a/patches/mpfr/3.1.0/140-gmp41compat.patch b/patches/mpfr/3.1.0/140-gmp41compat.patch
new file mode 100644
index 0000000..4b1ba08
--- /dev/null
+++ b/patches/mpfr/3.1.0/140-gmp41compat.patch
@@ -0,0 +1,166 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2011-11-28 12:22:52.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2011-11-28 12:22:52.000000000 +0000
+@@ -0,0 +1 @@
++gmp41compat
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2011-11-03 15:15:11.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2011-11-28 12:22:52.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p3
++3.1.0-p4
+diff -Naurd mpfr-3.1.0-a/doc/mpfr.info mpfr-3.1.0-b/doc/mpfr.info
+--- mpfr-3.1.0-a/doc/mpfr.info 2011-10-03 09:43:04.000000000 +0000
++++ mpfr-3.1.0-b/doc/mpfr.info 2011-11-28 12:22:52.000000000 +0000
+@@ -2994,11 +2994,12 @@
+
+ * `mpfr_urandom' and `mpfr_urandomb' changed in MPFR 3.1. Their
+ behavior no longer depends on the platform (assuming this is also
+- true for GMP's random generator). As a consequence, the returned
+- values can be different between MPFR 3.1 and previous MPFR
+- versions. Note: as the reproducibility of these functions was not
+- specified before MPFR 3.1, the MPFR 3.1 behavior is _not_ regarded
+- as backward incompatible with previous versions.
++ true for GMP's random generator, which is not the case between GMP
++ 4.1 and 4.2 if `gmp_randinit_default' is used). As a consequence,
++ the returned values can be different between MPFR 3.1 and previous
++ MPFR versions. Note: as the reproducibility of these functions
++ was not specified before MPFR 3.1, the MPFR 3.1 behavior is _not_
++ regarded as backward incompatible with previous versions.
+
+
+ 
+@@ -4239,13 +4240,13 @@
+ Node: Type and Macro Changes129308
+ Node: Added Functions132029
+ Node: Changed Functions134972
+-Node: Removed Functions139167
+-Node: Other Changes139579
+-Node: Contributors141108
+-Node: References143574
+-Node: GNU Free Documentation License145315
+-Node: Concept Index167758
+-Node: Function and Type Index173677
++Node: Removed Functions139253
++Node: Other Changes139665
++Node: Contributors141194
++Node: References143660
++Node: GNU Free Documentation License145401
++Node: Concept Index167844
++Node: Function and Type Index173763
+ 
+ End Tag Table
+
+diff -Naurd mpfr-3.1.0-a/doc/mpfr.texi mpfr-3.1.0-b/doc/mpfr.texi
+--- mpfr-3.1.0-a/doc/mpfr.texi 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/doc/mpfr.texi 2011-11-28 12:22:52.000000000 +0000
+@@ -3466,8 +3466,9 @@
+ a lack of specification.
+
+ @item @code{mpfr_urandom} and @code{mpfr_urandomb} changed in MPFR 3.1.
+-Their behavior no longer depends on the platform (assuming this is also
+-true for GMP's random generator). As a consequence, the returned values
++Their behavior no longer depends on the platform (assuming this is also true
++for GMP's random generator, which is not the case between GMP 4.1 and 4.2 if
++@code{gmp_randinit_default} is used). As a consequence, the returned values
+ can be different between MPFR 3.1 and previous MPFR versions.
+ Note: as the reproducibility of these functions was not specified
+ before MPFR 3.1, the MPFR 3.1 behavior is @emph{not} regarded as
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2011-11-03 15:15:11.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2011-11-28 12:22:52.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p3"
++#define MPFR_VERSION_STRING "3.1.0-p4"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2011-11-03 15:15:11.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2011-11-28 12:22:52.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p3";
++ return "3.1.0-p4";
+ }
+diff -Naurd mpfr-3.1.0-a/tests/trandom.c mpfr-3.1.0-b/tests/trandom.c
+--- mpfr-3.1.0-a/tests/trandom.c 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/tests/trandom.c 2011-11-28 12:22:52.000000000 +0000
+@@ -114,21 +114,29 @@
+ mpfr_t x;
+ gmp_randstate_t s;
+
++#if __MPFR_GMP(4,2,0)
++# define C1 "0.895943"
++# define C2 "0.848824"
++#else
++# define C1 "0.479652"
++# define C2 "0.648529"
++#endif
++
+ gmp_randinit_default (s);
+ gmp_randseed_ui (s, 42);
+ mpfr_init2 (x, 17);
+ mpfr_urandomb (x, s);
+- if (mpfr_cmp_str1 (x, "0.895943") != 0)
++ if (mpfr_cmp_str1 (x, C1) != 0)
+ {
+- printf ("Error in bug20100914, expected 0.895943, got ");
++ printf ("Error in bug20100914, expected " C1 ", got ");
+ mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN);
+ printf ("\n");
+ exit (1);
+ }
+ mpfr_urandomb (x, s);
+- if (mpfr_cmp_str1 (x, "0.848824") != 0)
++ if (mpfr_cmp_str1 (x, C2) != 0)
+ {
+- printf ("Error in bug20100914, expected 0.848824, got ");
++ printf ("Error in bug20100914, expected " C2 ", got ");
+ mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN);
+ printf ("\n");
+ exit (1);
+diff -Naurd mpfr-3.1.0-a/tests/turandom.c mpfr-3.1.0-b/tests/turandom.c
+--- mpfr-3.1.0-a/tests/turandom.c 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/tests/turandom.c 2011-11-28 12:22:52.000000000 +0000
+@@ -160,23 +160,29 @@
+ mpfr_t x;
+ gmp_randstate_t s;
+
++#if __MPFR_GMP(4,2,0)
++# define C1 "0.8488312"
++# define C2 "0.8156509"
++#else
++# define C1 "0.6485367"
++# define C2 "0.9362717"
++#endif
++
+ gmp_randinit_default (s);
+ gmp_randseed_ui (s, 42);
+ mpfr_init2 (x, 17);
+ mpfr_urandom (x, s, MPFR_RNDN);
+- /* the following values are obtained on a 32-bit computer, we should get
+- the same values on a 64-bit computer */
+- if (mpfr_cmp_str1 (x, "0.8488312") != 0)
++ if (mpfr_cmp_str1 (x, C1) != 0)
+ {
+- printf ("Error in bug20100914, expected 0.8488312, got ");
++ printf ("Error in bug20100914, expected " C1 ", got ");
+ mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN);
+ printf ("\n");
+ exit (1);
+ }
+ mpfr_urandom (x, s, MPFR_RNDN);
+- if (mpfr_cmp_str1 (x, "0.8156509") != 0)
++ if (mpfr_cmp_str1 (x, C2) != 0)
+ {
+- printf ("Error in bug20100914, expected 0.8156509, got ");
++ printf ("Error in bug20100914, expected " C2 ", got ");
+ mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN);
+ printf ("\n");
+ exit (1);
diff --git a/patches/mpfr/3.1.0/150-logging-freeze.patch b/patches/mpfr/3.1.0/150-logging-freeze.patch
new file mode 100644
index 0000000..c664cee
--- /dev/null
+++ b/patches/mpfr/3.1.0/150-logging-freeze.patch
@@ -0,0 +1,69 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2012-02-24 12:44:49.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2012-02-24 12:44:49.000000000 +0000
+@@ -0,0 +1 @@
++logging-freeze
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2011-11-28 12:22:52.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2012-02-24 12:44:49.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p4
++3.1.0-p5
+diff -Naurd mpfr-3.1.0-a/src/add_d.c mpfr-3.1.0-b/src/add_d.c
+--- mpfr-3.1.0-a/src/add_d.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/add_d.c 2012-02-24 12:44:49.000000000 +0000
+@@ -34,7 +34,7 @@
+ (("b[%Pu]=%.*Rg c=%.20g rnd=%d",
+ mpfr_get_prec(b), mpfr_log_prec, b, c, rnd_mode),
+ ("a[%Pu]=%.*Rg inexact=%d",
+- mpfr_get_prec (a), mpfr_get_prec, a, inexact));
++ mpfr_get_prec (a), mpfr_log_prec, a, inexact));
+
+ MPFR_SAVE_EXPO_MARK (expo);
+
+diff -Naurd mpfr-3.1.0-a/src/add_ui.c mpfr-3.1.0-b/src/add_ui.c
+--- mpfr-3.1.0-a/src/add_ui.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/add_ui.c 2012-02-24 12:44:49.000000000 +0000
+@@ -29,7 +29,7 @@
+ MPFR_LOG_FUNC
+ (("x[%Pu]=%.*Rg u=%d rnd=%d",
+ mpfr_get_prec(x), mpfr_log_prec, x, u, rnd_mode),
+- ("y[%Pu]=%.*Rg", mpfr_get_prec (y), mpfr_get_prec, y));
++ ("y[%Pu]=%.*Rg", mpfr_get_prec (y), mpfr_log_prec, y));
+
+ if (MPFR_LIKELY(u != 0) ) /* if u=0, do nothing */
+ {
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2011-11-28 12:22:52.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2012-02-24 12:44:49.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p4"
++#define MPFR_VERSION_STRING "3.1.0-p5"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/mul_d.c mpfr-3.1.0-b/src/mul_d.c
+--- mpfr-3.1.0-a/src/mul_d.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/mul_d.c 2012-02-24 12:44:49.000000000 +0000
+@@ -34,7 +34,7 @@
+ (("b[%Pu]=%.*Rg c=%.20g rnd=%d",
+ mpfr_get_prec(b), mpfr_log_prec, b, c, rnd_mode),
+ ("a[%Pu]=%.*Rg inexact=%d",
+- mpfr_get_prec (a), mpfr_get_prec, a, inexact));
++ mpfr_get_prec (a), mpfr_log_prec, a, inexact));
+
+ MPFR_SAVE_EXPO_MARK (expo);
+
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2011-11-28 12:22:52.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2012-02-24 12:44:49.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p4";
++ return "3.1.0-p5";
+ }
diff --git a/patches/mpfr/3.1.0/160-logging-varfmt.patch b/patches/mpfr/3.1.0/160-logging-varfmt.patch
new file mode 100644
index 0000000..0f4bfad
--- /dev/null
+++ b/patches/mpfr/3.1.0/160-logging-varfmt.patch
@@ -0,0 +1,45 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2012-02-24 13:50:05.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2012-02-24 13:50:05.000000000 +0000
+@@ -0,0 +1 @@
++logging-varfmt
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2012-02-24 12:44:49.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2012-02-24 13:50:05.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p5
++3.1.0-p6
+diff -Naurd mpfr-3.1.0-a/src/mpfr-impl.h mpfr-3.1.0-b/src/mpfr-impl.h
+--- mpfr-3.1.0-a/src/mpfr-impl.h 2011-10-05 21:39:57.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr-impl.h 2012-02-24 13:50:05.000000000 +0000
+@@ -1592,7 +1592,7 @@
+ do \
+ if ((MPFR_LOG_INTERNAL_F & mpfr_log_type) && \
+ (mpfr_log_current <= mpfr_log_level)) \
+- LOG_PRINT ("%s.%d:%s[%#Pu]=%.*Rf\n", __func__, __LINE__, \
++ LOG_PRINT ("%s.%d:%s[%#Pu]=%.*Rg\n", __func__, __LINE__, \
+ #x, mpfr_get_prec (x), mpfr_log_prec, x); \
+ while (0)
+
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2012-02-24 12:44:49.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2012-02-24 13:50:05.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p5"
++#define MPFR_VERSION_STRING "3.1.0-p6"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2012-02-24 12:44:49.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2012-02-24 13:50:05.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p5";
++ return "3.1.0-p6";
+ }
diff --git a/patches/mpfr/3.1.0/170-large-prec.patch b/patches/mpfr/3.1.0/170-large-prec.patch
new file mode 100644
index 0000000..08e7b57
--- /dev/null
+++ b/patches/mpfr/3.1.0/170-large-prec.patch
@@ -0,0 +1,591 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2012-03-08 15:17:03.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2012-03-08 15:17:03.000000000 +0000
+@@ -0,0 +1 @@
++large-prec
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2012-02-24 13:50:05.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2012-03-08 15:17:03.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p6
++3.1.0-p7
+diff -Naurd mpfr-3.1.0-a/src/add1.c mpfr-3.1.0-b/src/add1.c
+--- mpfr-3.1.0-a/src/add1.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/add1.c 2012-03-08 15:17:03.000000000 +0000
+@@ -44,12 +44,12 @@
+ bq = MPFR_PREC(b);
+ cq = MPFR_PREC(c);
+
+- an = (aq-1)/GMP_NUMB_BITS+1; /* number of limbs of a */
++ an = MPFR_PREC2LIMBS (aq); /* number of limbs of a */
+ aq2 = (mpfr_prec_t) an * GMP_NUMB_BITS;
+ sh = aq2 - aq; /* non-significant bits in low limb */
+
+- bn = (bq-1)/GMP_NUMB_BITS+1; /* number of limbs of b */
+- cn = (cq-1)/GMP_NUMB_BITS+1; /* number of limbs of c */
++ bn = MPFR_PREC2LIMBS (bq); /* number of limbs of b */
++ cn = MPFR_PREC2LIMBS (cq); /* number of limbs of c */
+
+ ap = MPFR_MANT(a);
+ bp = MPFR_MANT(b);
+@@ -124,7 +124,7 @@
+ dif = aq2 - diff_exp;
+ /* dif is the number of bits of c which overlap with a' */
+
+- difn = (dif-1)/GMP_NUMB_BITS + 1;
++ difn = MPFR_PREC2LIMBS (dif);
+ /* only the highest difn limbs from c have to be considered */
+ if (MPFR_UNLIKELY(difn > cn))
+ {
+diff -Naurd mpfr-3.1.0-a/src/add1sp.c mpfr-3.1.0-b/src/add1sp.c
+--- mpfr-3.1.0-a/src/add1sp.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/add1sp.c 2012-03-08 15:17:03.000000000 +0000
+@@ -107,7 +107,7 @@
+
+ /* Read prec and num of limbs */
+ p = MPFR_PREC(b);
+- n = (p+GMP_NUMB_BITS-1)/GMP_NUMB_BITS;
++ n = MPFR_PREC2LIMBS (p);
+ MPFR_UNSIGNED_MINUS_MODULO(sh, p);
+ bx = MPFR_GET_EXP(b);
+ d = (mpfr_uexp_t) (bx - MPFR_GET_EXP(c));
+diff -Naurd mpfr-3.1.0-a/src/agm.c mpfr-3.1.0-b/src/agm.c
+--- mpfr-3.1.0-a/src/agm.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/agm.c 2012-03-08 15:17:03.000000000 +0000
+@@ -91,7 +91,7 @@
+ q = MPFR_PREC(r);
+ p = q + MPFR_INT_CEIL_LOG2(q) + 15;
+ MPFR_ASSERTD (p >= 7); /* see algorithms.tex */
+- s = (p - 1) / GMP_NUMB_BITS + 1;
++ s = MPFR_PREC2LIMBS (p);
+
+ /* b (op2) and a (op1) are the 2 operands but we want b >= a */
+ compare = mpfr_cmp (op1, op2);
+@@ -285,7 +285,7 @@
+
+ /* Next iteration */
+ MPFR_ZIV_NEXT (loop, p);
+- s = (p - 1) / GMP_NUMB_BITS + 1;
++ s = MPFR_PREC2LIMBS (p);
+ }
+ MPFR_ZIV_FREE (loop);
+
+diff -Naurd mpfr-3.1.0-a/src/eq.c mpfr-3.1.0-b/src/eq.c
+--- mpfr-3.1.0-a/src/eq.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/eq.c 2012-03-08 15:17:03.000000000 +0000
+@@ -56,8 +56,8 @@
+ if (uexp != vexp)
+ return 0; /* no bit agree */
+
+- usize = (MPFR_PREC(u) - 1) / GMP_NUMB_BITS + 1;
+- vsize = (MPFR_PREC(v) - 1) / GMP_NUMB_BITS + 1;
++ usize = MPFR_LIMB_SIZE (u);
++ vsize = MPFR_LIMB_SIZE (v);
+
+ if (vsize > usize) /* exchange u and v */
+ {
+diff -Naurd mpfr-3.1.0-a/src/exp.c mpfr-3.1.0-b/src/exp.c
+--- mpfr-3.1.0-a/src/exp.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/exp.c 2012-03-08 15:17:03.000000000 +0000
+@@ -133,7 +133,7 @@
+ mp_size_t yn;
+ int sh;
+
+- yn = 1 + (MPFR_PREC(y) - 1) / GMP_NUMB_BITS;
++ yn = MPFR_LIMB_SIZE (y);
+ sh = (mpfr_prec_t) yn * GMP_NUMB_BITS - MPFR_PREC(y);
+ MPFR_MANT(y)[0] += MPFR_LIMB_ONE << sh;
+ inexact = 1;
+diff -Naurd mpfr-3.1.0-a/src/get_d.c mpfr-3.1.0-b/src/get_d.c
+--- mpfr-3.1.0-a/src/get_d.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/get_d.c 2012-03-08 15:17:03.000000000 +0000
+@@ -100,7 +100,7 @@
+ nbits += (1021 + e);
+ MPFR_ASSERTD (nbits >= 1);
+ }
+- np = (nbits + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
++ np = MPFR_PREC2LIMBS (nbits);
+ MPFR_ASSERTD ( np <= MPFR_LIMBS_PER_DOUBLE );
+ carry = mpfr_round_raw_4 (tp, MPFR_MANT(src), MPFR_PREC(src), negative,
+ nbits, rnd_mode);
+diff -Naurd mpfr-3.1.0-a/src/get_flt.c mpfr-3.1.0-b/src/get_flt.c
+--- mpfr-3.1.0-a/src/get_flt.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/get_flt.c 2012-03-08 15:17:03.000000000 +0000
+@@ -92,7 +92,7 @@
+ nbits += (125 + e);
+ MPFR_ASSERTD (nbits >= 1);
+ }
+- np = (nbits + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
++ np = MPFR_PREC2LIMBS (nbits);
+ MPFR_ASSERTD(np <= MPFR_LIMBS_PER_FLT);
+ carry = mpfr_round_raw_4 (tp, MPFR_MANT(src), MPFR_PREC(src), negative,
+ nbits, rnd_mode);
+diff -Naurd mpfr-3.1.0-a/src/get_str.c mpfr-3.1.0-b/src/get_str.c
+--- mpfr-3.1.0-a/src/get_str.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/get_str.c 2012-03-08 15:17:03.000000000 +0000
+@@ -2351,7 +2351,7 @@
+
+ /* the first digit will contain only r bits */
+ prec = (m - 1) * pow2 + r; /* total number of bits */
+- n = (prec - 1) / GMP_NUMB_BITS + 1;
++ n = MPFR_PREC2LIMBS (prec);
+
+ MPFR_TMP_MARK (marker);
+ x1 = MPFR_TMP_LIMBS_ALLOC (n + 1);
+@@ -2417,12 +2417,12 @@
+ exact = 1;
+
+ /* number of limbs */
+- n = 1 + (prec - 1) / GMP_NUMB_BITS;
++ n = MPFR_PREC2LIMBS (prec);
+
+ /* a will contain the approximation of the mantissa */
+ a = MPFR_TMP_LIMBS_ALLOC (n);
+
+- nx = 1 + (MPFR_PREC(x) - 1) / GMP_NUMB_BITS;
++ nx = MPFR_LIMB_SIZE (x);
+
+ if ((mpfr_exp_t) m == g) /* final exponent is 0, no multiplication or
+ division to perform */
+diff -Naurd mpfr-3.1.0-a/src/init2.c mpfr-3.1.0-b/src/init2.c
+--- mpfr-3.1.0-a/src/init2.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/init2.c 2012-03-08 15:17:03.000000000 +0000
+@@ -51,7 +51,7 @@
+ which both have an odd mantissa */
+ MPFR_ASSERTN(p >= MPFR_PREC_MIN && p <= MPFR_PREC_MAX);
+
+- xsize = (mp_size_t) ((p - 1) / GMP_NUMB_BITS) + 1;
++ xsize = MPFR_PREC2LIMBS (p);
+ tmp = (mpfr_limb_ptr) (*__gmp_allocate_func)(MPFR_MALLOC_SIZE(xsize));
+
+ MPFR_PREC(x) = p; /* Set prec */
+diff -Naurd mpfr-3.1.0-a/src/lngamma.c mpfr-3.1.0-b/src/lngamma.c
+--- mpfr-3.1.0-a/src/lngamma.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/lngamma.c 2012-03-08 15:17:03.000000000 +0000
+@@ -67,7 +67,7 @@
+
+ /* Now, the unit bit is represented. */
+
+- prec = ((prec - 1) / GMP_NUMB_BITS + 1) * GMP_NUMB_BITS - expo;
++ prec = MPFR_PREC2LIMBS (prec) * GMP_NUMB_BITS - expo;
+ /* number of represented fractional bits (including the trailing 0's) */
+
+ x0 = *(MPFR_MANT (x) + prec / GMP_NUMB_BITS);
+diff -Naurd mpfr-3.1.0-a/src/mpfr-impl.h mpfr-3.1.0-b/src/mpfr-impl.h
+--- mpfr-3.1.0-a/src/mpfr-impl.h 2012-02-24 13:50:05.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr-impl.h 2012-03-09 12:06:26.000000000 +0000
+@@ -646,10 +646,24 @@
+ **************** mpfr_t properties *******************
+ ******************************************************/
+
++/* In the following macro, p is usually a mpfr_prec_t, but this macro
++ works with other integer types (without integer overflow). Checking
++ that p >= 1 in debug mode is useful here because this macro can be
++ used on a computed precision (in particular, this formula does not
++ work for a degenerate case p = 0, and could give different results
++ on different platforms). But let us not use an assertion checking
++ in the MPFR_LAST_LIMB() and MPFR_LIMB_SIZE() macros below to avoid
++ too much expansion for assertions (in practice, this should be a
++ problem just when testing MPFR with the --enable-assert configure
++ option and the -ansi -pedantic-errors gcc compiler flags). */
++#define MPFR_PREC2LIMBS(p) \
++ (MPFR_ASSERTD ((p) >= 1), ((p) - 1) / GMP_NUMB_BITS + 1)
++
+ #define MPFR_PREC(x) ((x)->_mpfr_prec)
+ #define MPFR_EXP(x) ((x)->_mpfr_exp)
+ #define MPFR_MANT(x) ((x)->_mpfr_d)
+-#define MPFR_LIMB_SIZE(x) ((MPFR_PREC((x))-1)/GMP_NUMB_BITS+1)
++#define MPFR_LAST_LIMB(x) ((MPFR_PREC (x) - 1) / GMP_NUMB_BITS)
++#define MPFR_LIMB_SIZE(x) (MPFR_LAST_LIMB (x) + 1)
+
+
+ /******************************************************
+@@ -749,7 +763,8 @@
+ #define MPFR_IS_FP(x) (!MPFR_IS_NAN(x) && !MPFR_IS_INF(x))
+ #define MPFR_IS_SINGULAR(x) (MPFR_EXP(x) <= MPFR_EXP_INF)
+ #define MPFR_IS_PURE_FP(x) (!MPFR_IS_SINGULAR(x) && \
+- (MPFR_ASSERTD (MPFR_MANT(x)[MPFR_LIMB_SIZE(x)-1] & MPFR_LIMB_HIGHBIT), 1))
++ (MPFR_ASSERTD ((MPFR_MANT(x)[MPFR_LAST_LIMB(x)] \
++ & MPFR_LIMB_HIGHBIT) != 0), 1))
+
+ #define MPFR_ARE_SINGULAR(x,y) \
+ (MPFR_UNLIKELY(MPFR_IS_SINGULAR(x)) || MPFR_UNLIKELY(MPFR_IS_SINGULAR(y)))
+@@ -1061,7 +1076,7 @@
+ /* Set a number to 1 (Fast) - It doesn't check if 1 is in the exponent range */
+ #define MPFR_SET_ONE(x) \
+ do { \
+- mp_size_t _size = MPFR_LIMB_SIZE(x) - 1; \
++ mp_size_t _size = MPFR_LAST_LIMB(x); \
+ MPFR_SET_POS(x); \
+ MPFR_EXP(x) = 1; \
+ MPN_ZERO ( MPFR_MANT(x), _size); \
+@@ -1213,8 +1228,8 @@
+ _destp = MPFR_MANT (dest); \
+ if (MPFR_UNLIKELY (_destprec >= _srcprec)) \
+ { \
+- _srcs = (_srcprec + GMP_NUMB_BITS-1)/GMP_NUMB_BITS; \
+- _dests = (_destprec + GMP_NUMB_BITS-1)/GMP_NUMB_BITS - _srcs; \
++ _srcs = MPFR_PREC2LIMBS (_srcprec); \
++ _dests = MPFR_PREC2LIMBS (_destprec) - _srcs; \
+ MPN_COPY (_destp + _dests, srcp, _srcs); \
+ MPN_ZERO (_destp, _dests); \
+ inexact = 0; \
+@@ -1227,8 +1242,8 @@
+ mp_limb_t _rb, _sb, _ulp; \
+ \
+ /* Compute Position and shift */ \
+- _srcs = (_srcprec + GMP_NUMB_BITS-1)/GMP_NUMB_BITS; \
+- _dests = (_destprec + GMP_NUMB_BITS-1)/GMP_NUMB_BITS; \
++ _srcs = MPFR_PREC2LIMBS (_srcprec); \
++ _dests = MPFR_PREC2LIMBS (_destprec); \
+ MPFR_UNSIGNED_MINUS_MODULO (_sh, _destprec); \
+ _sp = (srcp) + _srcs - _dests; \
+ \
+@@ -1372,7 +1387,7 @@
+ if (MPFR_LIKELY (MPFR_PREC (dest) == MPFR_PREC (src))) \
+ { \
+ MPN_COPY (MPFR_MANT (dest), MPFR_MANT (src), \
+- (MPFR_PREC (src) + GMP_NUMB_BITS-1)/GMP_NUMB_BITS); \
++ MPFR_LIMB_SIZE (src)); \
+ inexact = 0; \
+ } \
+ else \
+@@ -1682,7 +1697,7 @@
+ MPFR_ASSERTD (_prec >= MPFR_PREC_MIN); \
+ if (MPFR_UNLIKELY (_prec > MPFR_PREC_MAX)) \
+ mpfr_abort_prec_max (); \
+- _size = (mpfr_prec_t) (_prec + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS; \
++ _size = MPFR_PREC2LIMBS (_prec); \
+ if (MPFR_UNLIKELY (_size * (num) > MPFR_GROUP_STATIC_SIZE)) \
+ { \
+ (g).alloc = (num) * _size * sizeof (mp_limb_t); \
+@@ -1733,7 +1748,7 @@
+ MPFR_ASSERTD (_prec >= MPFR_PREC_MIN); \
+ if (MPFR_UNLIKELY (_prec > MPFR_PREC_MAX)) \
+ mpfr_abort_prec_max (); \
+- _size = (mpfr_prec_t) (_prec + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS; \
++ _size = MPFR_PREC2LIMBS (_prec); \
+ (g).alloc = (num) * _size * sizeof (mp_limb_t); \
+ if (MPFR_LIKELY (_oalloc == 0)) \
+ (g).mant = (mp_limb_t *) (*__gmp_allocate_func) ((g).alloc); \
+@@ -1886,7 +1901,7 @@
+ MPFR_NORETURN_ATTR;
+
+ __MPFR_DECLSPEC void mpfr_rand_raw _MPFR_PROTO((mpfr_limb_ptr, gmp_randstate_t,
+- unsigned long));
++ mpfr_prec_t));
+
+ __MPFR_DECLSPEC mpz_t* mpfr_bernoulli_internal _MPFR_PROTO((mpz_t*,
+ unsigned long));
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2012-02-24 13:50:05.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2012-03-08 15:17:03.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p6"
++#define MPFR_VERSION_STRING "3.1.0-p7"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/mul.c mpfr-3.1.0-b/src/mul.c
+--- mpfr-3.1.0-a/src/mul.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/mul.c 2012-03-08 15:17:03.000000000 +0000
+@@ -93,15 +93,15 @@
+
+ ax = MPFR_GET_EXP (b) + MPFR_GET_EXP (c);
+
+- bq = MPFR_PREC(b);
+- cq = MPFR_PREC(c);
++ bq = MPFR_PREC (b);
++ cq = MPFR_PREC (c);
+
+- MPFR_ASSERTD(bq+cq > bq); /* PREC_MAX is /2 so no integer overflow */
++ MPFR_ASSERTN ((mpfr_uprec_t) bq + cq <= MPFR_PREC_MAX);
+
+- bn = (bq+GMP_NUMB_BITS-1)/GMP_NUMB_BITS; /* number of limbs of b */
+- cn = (cq+GMP_NUMB_BITS-1)/GMP_NUMB_BITS; /* number of limbs of c */
++ bn = MPFR_PREC2LIMBS (bq); /* number of limbs of b */
++ cn = MPFR_PREC2LIMBS (cq); /* number of limbs of c */
+ k = bn + cn; /* effective nb of limbs used by b*c (= tn or tn+1) below */
+- tn = (bq + cq + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
++ tn = MPFR_PREC2LIMBS (bq + cq);
+ /* <= k, thus no int overflow */
+ MPFR_ASSERTD(tn <= k);
+
+@@ -292,12 +292,12 @@
+ bq = MPFR_PREC (b);
+ cq = MPFR_PREC (c);
+
+- MPFR_ASSERTD (bq+cq > bq); /* PREC_MAX is /2 so no integer overflow */
++ MPFR_ASSERTN ((mpfr_uprec_t) bq + cq <= MPFR_PREC_MAX);
+
+- bn = (bq+GMP_NUMB_BITS-1)/GMP_NUMB_BITS; /* number of limbs of b */
+- cn = (cq+GMP_NUMB_BITS-1)/GMP_NUMB_BITS; /* number of limbs of c */
++ bn = MPFR_PREC2LIMBS (bq); /* number of limbs of b */
++ cn = MPFR_PREC2LIMBS (cq); /* number of limbs of c */
+ k = bn + cn; /* effective nb of limbs used by b*c (= tn or tn+1) below */
+- tn = (bq + cq + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
++ tn = MPFR_PREC2LIMBS (bq + cq);
+ MPFR_ASSERTD (tn <= k); /* tn <= k, thus no int overflow */
+
+ /* Check for no size_t overflow*/
+diff -Naurd mpfr-3.1.0-a/src/pow.c mpfr-3.1.0-b/src/pow.c
+--- mpfr-3.1.0-a/src/pow.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/pow.c 2012-03-08 15:17:03.000000000 +0000
+@@ -136,7 +136,7 @@
+ (b) all the 'z' bits are zero
+ */
+
+- prec = ((prec - 1) / GMP_NUMB_BITS + 1) * GMP_NUMB_BITS - expo;
++ prec = MPFR_PREC2LIMBS (prec) * GMP_NUMB_BITS - expo;
+ /* number of z+0 bits */
+
+ yn = prec / GMP_NUMB_BITS;
+diff -Naurd mpfr-3.1.0-a/src/print_raw.c mpfr-3.1.0-b/src/print_raw.c
+--- mpfr-3.1.0-a/src/print_raw.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/print_raw.c 2012-03-08 15:17:03.000000000 +0000
+@@ -84,7 +84,7 @@
+ int i;
+ mpfr_prec_t count = 0;
+ char c;
+- mp_size_t n = (r - 1) / GMP_NUMB_BITS + 1;
++ mp_size_t n = MPFR_PREC2LIMBS (r);
+
+ printf("%s ", str);
+ for(n-- ; n>=0 ; n--)
+@@ -109,7 +109,7 @@
+ int i;
+ mpfr_prec_t count = 0;
+ char c;
+- mp_size_t n = (r - 1) / GMP_NUMB_BITS + 1;
++ mp_size_t n = MPFR_PREC2LIMBS (r);
+
+ for(n-- ; n>=0 ; n--)
+ {
+diff -Naurd mpfr-3.1.0-a/src/round_prec.c mpfr-3.1.0-b/src/round_prec.c
+--- mpfr-3.1.0-a/src/round_prec.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/round_prec.c 2012-03-08 15:17:03.000000000 +0000
+@@ -55,12 +55,12 @@
+
+ MPFR_ASSERTN(prec >= MPFR_PREC_MIN && prec <= MPFR_PREC_MAX);
+
+- nw = 1 + (prec - 1) / GMP_NUMB_BITS; /* needed allocated limbs */
++ nw = MPFR_PREC2LIMBS (prec); /* needed allocated limbs */
+
+ /* check if x has enough allocated space for the significand */
+ /* Get the number of limbs from the precision.
+ (Compatible with all allocation methods) */
+- ow = (MPFR_PREC (x) + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
++ ow = MPFR_LIMB_SIZE (x);
+ if (nw > ow)
+ {
+ /* FIXME: Variable can't be created using custom allocation,
+diff -Naurd mpfr-3.1.0-a/src/round_raw_generic.c mpfr-3.1.0-b/src/round_raw_generic.c
+--- mpfr-3.1.0-a/src/round_raw_generic.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/round_raw_generic.c 2012-03-08 15:17:03.000000000 +0000
+@@ -80,7 +80,7 @@
+ (xprec <= yprec || MPFR_IS_LIKE_RNDZ (rnd_mode, neg)))
+ return 0;
+
+- xsize = (xprec-1)/GMP_NUMB_BITS + 1;
++ xsize = MPFR_PREC2LIMBS (xprec);
+ nw = yprec / GMP_NUMB_BITS;
+ rw = yprec & (GMP_NUMB_BITS - 1);
+
+diff -Naurd mpfr-3.1.0-a/src/set.c mpfr-3.1.0-b/src/set.c
+--- mpfr-3.1.0-a/src/set.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/set.c 2012-03-08 15:17:03.000000000 +0000
+@@ -48,8 +48,7 @@
+ /* Same precision and b is not singular:
+ * just copy the mantissa, and set the exponent and the sign
+ * The result is exact. */
+- MPN_COPY (MPFR_MANT (a), MPFR_MANT (b),
+- (MPFR_PREC (b) + GMP_NUMB_BITS-1)/GMP_NUMB_BITS);
++ MPN_COPY (MPFR_MANT (a), MPFR_MANT (b), MPFR_LIMB_SIZE (b));
+ MPFR_RET (0);
+ }
+ else
+diff -Naurd mpfr-3.1.0-a/src/set_f.c mpfr-3.1.0-b/src/set_f.c
+--- mpfr-3.1.0-a/src/set_f.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/set_f.c 2012-03-08 15:17:03.000000000 +0000
+@@ -43,7 +43,7 @@
+ if (SIZ(x) * MPFR_FROM_SIGN_TO_INT(MPFR_SIGN(y)) < 0)
+ MPFR_CHANGE_SIGN (y);
+
+- sy = 1 + (MPFR_PREC(y) - 1) / GMP_NUMB_BITS;
++ sy = MPFR_LIMB_SIZE (y);
+ my = MPFR_MANT(y);
+ mx = PTR(x);
+
+diff -Naurd mpfr-3.1.0-a/src/set_prec.c mpfr-3.1.0-b/src/set_prec.c
+--- mpfr-3.1.0-a/src/set_prec.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/set_prec.c 2012-03-08 15:17:03.000000000 +0000
+@@ -32,7 +32,7 @@
+ MPFR_ASSERTN (p >= MPFR_PREC_MIN && p <= MPFR_PREC_MAX);
+
+ /* Calculate the new number of limbs */
+- xsize = (p - 1) / GMP_NUMB_BITS + 1;
++ xsize = MPFR_PREC2LIMBS (p);
+
+ /* Realloc only if the new size is greater than the old */
+ xoldsize = MPFR_GET_ALLOC_SIZE (x);
+diff -Naurd mpfr-3.1.0-a/src/setmax.c mpfr-3.1.0-b/src/setmax.c
+--- mpfr-3.1.0-a/src/setmax.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/setmax.c 2012-03-08 15:17:03.000000000 +0000
+@@ -32,7 +32,7 @@
+ mp_limb_t *xp;
+
+ MPFR_SET_EXP (x, e);
+- xn = 1 + (MPFR_PREC(x) - 1) / GMP_NUMB_BITS;
++ xn = MPFR_LIMB_SIZE (x);
+ sh = (mpfr_prec_t) xn * GMP_NUMB_BITS - MPFR_PREC(x);
+ xp = MPFR_MANT(x);
+ xp[0] = MP_LIMB_T_MAX << sh;
+diff -Naurd mpfr-3.1.0-a/src/sqr.c mpfr-3.1.0-b/src/sqr.c
+--- mpfr-3.1.0-a/src/sqr.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/sqr.c 2012-03-08 15:17:03.000000000 +0000
+@@ -56,11 +56,11 @@
+ ax = 2 * MPFR_GET_EXP (b);
+ bq = MPFR_PREC(b);
+
+- MPFR_ASSERTD (2 * bq > bq); /* PREC_MAX is /2 so no integer overflow */
++ MPFR_ASSERTN (2 * (mpfr_uprec_t) bq <= MPFR_PREC_MAX);
+
+- bn = MPFR_LIMB_SIZE(b); /* number of limbs of b */
+- tn = 1 + (2 * bq - 1) / GMP_NUMB_BITS; /* number of limbs of square,
+- 2*bn or 2*bn-1 */
++ bn = MPFR_LIMB_SIZE (b); /* number of limbs of b */
++ tn = MPFR_PREC2LIMBS (2 * bq); /* number of limbs of square,
++ 2*bn or 2*bn-1 */
+
+ if (MPFR_UNLIKELY(bn > MPFR_SQR_THRESHOLD))
+ return mpfr_mul (a, b, b, rnd_mode);
+diff -Naurd mpfr-3.1.0-a/src/stack_interface.c mpfr-3.1.0-b/src/stack_interface.c
+--- mpfr-3.1.0-a/src/stack_interface.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/stack_interface.c 2012-03-08 15:17:03.000000000 +0000
+@@ -26,7 +26,7 @@
+ size_t
+ mpfr_custom_get_size (mpfr_prec_t prec)
+ {
+- return (prec + GMP_NUMB_BITS -1) / GMP_NUMB_BITS * BYTES_PER_MP_LIMB;
++ return MPFR_PREC2LIMBS (prec) * BYTES_PER_MP_LIMB;
+ }
+
+ #undef mpfr_custom_init
+diff -Naurd mpfr-3.1.0-a/src/strtofr.c mpfr-3.1.0-b/src/strtofr.c
+--- mpfr-3.1.0-a/src/strtofr.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/strtofr.c 2012-03-08 15:17:03.000000000 +0000
+@@ -467,7 +467,7 @@
+ /* Set y to the value of the ~prec most significant bits of pstr->mant
+ (as long as we guarantee correct rounding, we don't need to get
+ exactly prec bits). */
+- ysize = (prec - 1) / GMP_NUMB_BITS + 1;
++ ysize = MPFR_PREC2LIMBS (prec);
+ /* prec bits corresponds to ysize limbs */
+ ysize_bits = ysize * GMP_NUMB_BITS;
+ /* and to ysize_bits >= prec > MPFR_PREC (x) bits */
+diff -Naurd mpfr-3.1.0-a/src/sub1sp.c mpfr-3.1.0-b/src/sub1sp.c
+--- mpfr-3.1.0-a/src/sub1sp.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/sub1sp.c 2012-03-08 15:17:03.000000000 +0000
+@@ -155,8 +155,8 @@
+ MPFR_ASSERTD(MPFR_IS_PURE_FP(c));
+
+ /* Read prec and num of limbs */
+- p = MPFR_PREC(b);
+- n = (p-1)/GMP_NUMB_BITS+1;
++ p = MPFR_PREC (b);
++ n = MPFR_PREC2LIMBS (p);
+
+ /* Fast cmp of |b| and |c|*/
+ bx = MPFR_GET_EXP (b);
+diff -Naurd mpfr-3.1.0-a/src/urandomb.c mpfr-3.1.0-b/src/urandomb.c
+--- mpfr-3.1.0-a/src/urandomb.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/urandomb.c 2012-03-08 15:17:03.000000000 +0000
+@@ -31,13 +31,20 @@
+ a sufficient number of limbs */
+ void
+ mpfr_rand_raw (mpfr_limb_ptr mp, gmp_randstate_t rstate,
+- unsigned long int nbits)
++ mpfr_prec_t nbits)
+ {
+ mpz_t z;
+
++ MPFR_ASSERTN (nbits >= 1);
+ /* To be sure to avoid the potential allocation of mpz_urandomb */
+- ALLOC(z) = SIZ(z) = ((nbits - 1) / GMP_NUMB_BITS) + 1;
++ ALLOC(z) = SIZ(z) = MPFR_PREC2LIMBS (nbits);
+ PTR(z) = mp;
++#if __MPFR_GMP(5,0,0)
++ /* Check for integer overflow (unless mp_bitcnt_t is signed,
++ but according to the GMP manual, this shouldn't happen).
++ Note: mp_bitcnt_t has been introduced in GMP 5.0.0. */
++ MPFR_ASSERTN ((mp_bitcnt_t) -1 < 0 || nbits <= (mp_bitcnt_t) -1);
++#endif
+ mpz_urandomb (z, rstate, nbits);
+ }
+
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2012-02-24 13:50:05.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2012-03-08 15:17:03.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p6";
++ return "3.1.0-p7";
+ }
+diff -Naurd mpfr-3.1.0-a/tests/tinits.c mpfr-3.1.0-b/tests/tinits.c
+--- mpfr-3.1.0-a/tests/tinits.c 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/tests/tinits.c 2012-03-08 15:17:03.000000000 +0000
+@@ -1,4 +1,4 @@
+-/* Test file for mpfr_inits, mpfr_inits2 and mpfr_clears.
++/* Test file for mpfr_init2, mpfr_inits, mpfr_inits2 and mpfr_clears.
+
+ Copyright 2003, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Contributed by the Arenaire and Caramel projects, INRIA.
+@@ -20,18 +20,43 @@
+ http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+ 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
++#include <stdlib.h>
++
+ #include "mpfr-test.h"
+
+ int
+ main (void)
+ {
+ mpfr_t a, b, c;
++ long large_prec;
+
+ tests_start_mpfr ();
++
+ mpfr_inits (a, b, c, (mpfr_ptr) 0);
+ mpfr_clears (a, b, c, (mpfr_ptr) 0);
+ mpfr_inits2 (200, a, b, c, (mpfr_ptr) 0);
+ mpfr_clears (a, b, c, (mpfr_ptr) 0);
++
++ /* test for precision 2^31-1, see
++ https://gforge.inria.fr/tracker/index.php?func=detail&aid=13918 */
++ large_prec = 2147483647;
++ if (getenv ("MPFR_CHECK_LARGEMEM") != NULL)
++ {
++ /* We assume that the precision won't be increased internally. */
++ if (large_prec > MPFR_PREC_MAX)
++ large_prec = MPFR_PREC_MAX;
++ mpfr_inits2 (large_prec, a, b, (mpfr_ptr) 0);
++ mpfr_set_ui (a, 17, MPFR_RNDN);
++ mpfr_set (b, a, MPFR_RNDN);
++ if (mpfr_get_ui (a, MPFR_RNDN) != 17)
++ {
++ printf ("Error in mpfr_init2 with precision 2^31-1\n");
++ exit (1);
++ }
++ mpfr_clears (a, b, (mpfr_ptr) 0);
++ }
++
+ tests_end_mpfr ();
++
+ return 0;
+ }
diff --git a/patches/mpfr/3.1.0/180-__gmp_const.patch b/patches/mpfr/3.1.0/180-__gmp_const.patch
new file mode 100644
index 0000000..94444b6
--- /dev/null
+++ b/patches/mpfr/3.1.0/180-__gmp_const.patch
@@ -0,0 +1,52 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2012-03-12 11:59:47.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2012-03-12 11:59:47.000000000 +0000
+@@ -0,0 +1 @@
++__gmp_const
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2012-03-08 15:17:03.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2012-03-12 11:59:47.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p7
++3.1.0-p8
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2012-03-08 15:17:03.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2012-03-12 11:59:47.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p7"
++#define MPFR_VERSION_STRING "3.1.0-p8"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+@@ -39,6 +39,18 @@
+ # include <gmp.h>
+ #endif
+
++/* GMP's internal __gmp_const macro has been removed on 2012-03-04:
++ http://gmplib.org:8000/gmp/rev/d287cfaf6732
++ const is standard and now assumed to be available. If the __gmp_const
++ definition is no longer present in GMP, this probably means that GMP
++ assumes that const is available; thus let's define it to const.
++ Note: this is a temporary fix that can be backported to previous MPFR
++ versions. In the future, __gmp_const should be replaced by const like
++ in GMP. */
++#ifndef __gmp_const
++# define __gmp_const const
++#endif
++
+ /* Avoid some problems with macro expansion if the user defines macros
+ with the same name as keywords. By convention, identifiers and macro
+ names starting with mpfr_ are reserved by MPFR. */
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2012-03-08 15:17:03.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2012-03-12 11:59:47.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p7";
++ return "3.1.0-p8";
+ }
diff --git a/patches/mpfr/3.1.0/190-gamma-underflow.patch b/patches/mpfr/3.1.0/190-gamma-underflow.patch
new file mode 100644
index 0000000..3de1d19
--- /dev/null
+++ b/patches/mpfr/3.1.0/190-gamma-underflow.patch
@@ -0,0 +1,93 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2012-04-27 01:13:15.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2012-04-27 01:13:15.000000000 +0000
+@@ -0,0 +1 @@
++gamma-underflow
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2012-03-12 11:59:47.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2012-04-27 01:13:15.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p8
++3.1.0-p9
+diff -Naurd mpfr-3.1.0-a/src/gamma.c mpfr-3.1.0-b/src/gamma.c
+--- mpfr-3.1.0-a/src/gamma.c 2011-10-03 08:17:09.000000000 +0000
++++ mpfr-3.1.0-b/src/gamma.c 2012-04-27 01:13:15.000000000 +0000
+@@ -296,7 +296,7 @@
+ /* we want an upper bound for x * [log(2-x)-1].
+ since x < 0, we need a lower bound on log(2-x) */
+ mpfr_ui_sub (xp, 2, x, MPFR_RNDD);
+- mpfr_log2 (xp, xp, MPFR_RNDD);
++ mpfr_log (xp, xp, MPFR_RNDD);
+ mpfr_sub_ui (xp, xp, 1, MPFR_RNDD);
+ mpfr_mul (xp, xp, x, MPFR_RNDU);
+
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2012-03-12 11:59:47.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2012-04-27 01:13:15.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p8"
++#define MPFR_VERSION_STRING "3.1.0-p9"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2012-03-12 11:59:47.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2012-04-27 01:13:15.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p8";
++ return "3.1.0-p9";
+ }
+diff -Naurd mpfr-3.1.0-a/tests/tgamma.c mpfr-3.1.0-b/tests/tgamma.c
+--- mpfr-3.1.0-a/tests/tgamma.c 2011-10-03 08:17:14.000000000 +0000
++++ mpfr-3.1.0-b/tests/tgamma.c 2012-04-27 01:13:15.000000000 +0000
+@@ -478,6 +478,36 @@
+ mpfr_clear (x);
+ }
+
++/* bug found by Giridhar Tammana */
++static void
++test20120426 (void)
++{
++ mpfr_t xa, xb;
++ int i;
++ mpfr_exp_t emin;
++
++ mpfr_init2 (xa, 53);
++ mpfr_init2 (xb, 53);
++ mpfr_set_d (xb, -168.5, MPFR_RNDN);
++ emin = mpfr_get_emin ();
++ mpfr_set_emin (-1073);
++ i = mpfr_gamma (xa, xb, MPFR_RNDN);
++ i = mpfr_subnormalize (xa, i, MPFR_RNDN); /* new ternary value */
++ mpfr_set_str (xb, "-9.5737343987585366746184749943e-304", 10, MPFR_RNDN);
++ if (!((i > 0) && (mpfr_cmp (xa, xb) == 0)))
++ {
++ printf ("Error in test20120426, i=%d\n", i);
++ printf ("expected ");
++ mpfr_print_binary (xb); putchar ('\n');
++ printf ("got ");
++ mpfr_print_binary (xa); putchar ('\n');
++ exit (1);
++ }
++ mpfr_set_emin (emin);
++ mpfr_clear (xa);
++ mpfr_clear (xb);
++}
++
+ static void
+ exprange (void)
+ {
+@@ -821,6 +851,7 @@
+ gamma_integer ();
+ test20071231 ();
+ test20100709 ();
++ test20120426 ();
+
+ data_check ("data/gamma", mpfr_gamma, "mpfr_gamma");
+
diff --git a/patches/mpfr/3.1.0/200-gamma-overunderflow.patch b/patches/mpfr/3.1.0/200-gamma-overunderflow.patch
new file mode 100644
index 0000000..e6d6051
--- /dev/null
+++ b/patches/mpfr/3.1.0/200-gamma-overunderflow.patch
@@ -0,0 +1,487 @@
+diff -Naurd mpfr-3.1.0-a/PATCHES mpfr-3.1.0-b/PATCHES
+--- mpfr-3.1.0-a/PATCHES 2012-05-07 18:52:45.000000000 +0000
++++ mpfr-3.1.0-b/PATCHES 2012-05-07 18:52:45.000000000 +0000
+@@ -0,0 +1 @@
++gamma-overunderflow
+diff -Naurd mpfr-3.1.0-a/VERSION mpfr-3.1.0-b/VERSION
+--- mpfr-3.1.0-a/VERSION 2012-04-27 01:13:15.000000000 +0000
++++ mpfr-3.1.0-b/VERSION 2012-05-07 18:52:45.000000000 +0000
+@@ -1 +1 @@
+-3.1.0-p9
++3.1.0-p10
+diff -Naurd mpfr-3.1.0-a/src/gamma.c mpfr-3.1.0-b/src/gamma.c
+--- mpfr-3.1.0-a/src/gamma.c 2012-04-27 01:13:15.000000000 +0000
++++ mpfr-3.1.0-b/src/gamma.c 2012-05-07 18:52:45.000000000 +0000
+@@ -100,7 +100,8 @@
+ mpfr_t xp, GammaTrial, tmp, tmp2;
+ mpz_t fact;
+ mpfr_prec_t realprec;
+- int compared, inex, is_integer;
++ int compared, is_integer;
++ int inex = 0; /* 0 means: result gamma not set yet */
+ MPFR_GROUP_DECL (group);
+ MPFR_SAVE_EXPO_DECL (expo);
+ MPFR_ZIV_DECL (loop);
+@@ -377,6 +378,15 @@
+ mpfr_mul (GammaTrial, tmp2, xp, MPFR_RNDN); /* Pi*(2-x), error (1+u)^2 */
+ err_g = MPFR_GET_EXP(GammaTrial);
+ mpfr_sin (GammaTrial, GammaTrial, MPFR_RNDN); /* sin(Pi*(2-x)) */
++ /* If tmp is +Inf, we compute exp(lngamma(x)). */
++ if (mpfr_inf_p (tmp))
++ {
++ inex = mpfr_explgamma (gamma, x, &expo, tmp, tmp2, rnd_mode);
++ if (inex)
++ goto end;
++ else
++ goto ziv_next;
++ }
+ err_g = err_g + 1 - MPFR_GET_EXP(GammaTrial);
+ /* let g0 the true value of Pi*(2-x), g the computed value.
+ We have g = g0 + h with |h| <= |(1+u^2)-1|*g.
+@@ -411,11 +421,16 @@
+ if (MPFR_LIKELY (MPFR_CAN_ROUND (GammaTrial, realprec - err_g,
+ MPFR_PREC(gamma), rnd_mode)))
+ break;
++
++ ziv_next:
+ MPFR_ZIV_NEXT (loop, realprec);
+ }
++
++ end:
+ MPFR_ZIV_FREE (loop);
+
+- inex = mpfr_set (gamma, GammaTrial, rnd_mode);
++ if (inex == 0)
++ inex = mpfr_set (gamma, GammaTrial, rnd_mode);
+ MPFR_GROUP_CLEAR (group);
+ mpz_clear (fact);
+
+diff -Naurd mpfr-3.1.0-a/src/lngamma.c mpfr-3.1.0-b/src/lngamma.c
+--- mpfr-3.1.0-a/src/lngamma.c 2012-03-08 15:17:03.000000000 +0000
++++ mpfr-3.1.0-b/src/lngamma.c 2012-05-07 18:52:45.000000000 +0000
+@@ -49,9 +49,72 @@
+ mpfr_set_ui_2exp (s, 9, -1, MPFR_RNDN); /* 4.5 */
+ }
+
+-#ifndef IS_GAMMA
++#ifdef IS_GAMMA
++
++/* This function is called in case of intermediate overflow/underflow.
++ The s1 and s2 arguments are temporary MPFR numbers, having the
++ working precision. If the result could be determined, then the
++ flags are updated via pexpo, y is set to the result, and the
++ (non-zero) ternary value is returned. Otherwise 0 is returned
++ in order to perform the next Ziv iteration. */
+ static int
+-unit_bit (mpfr_srcptr (x))
++mpfr_explgamma (mpfr_ptr y, mpfr_srcptr x, mpfr_save_expo_t *pexpo,
++ mpfr_ptr s1, mpfr_ptr s2, mpfr_rnd_t rnd)
++{
++ mpfr_t t1, t2;
++ int inex1, inex2, sign;
++ MPFR_BLOCK_DECL (flags1);
++ MPFR_BLOCK_DECL (flags2);
++ MPFR_GROUP_DECL (group);
++
++ MPFR_BLOCK (flags1, inex1 = mpfr_lgamma (s1, &sign, x, MPFR_RNDD));
++ MPFR_ASSERTN (inex1 != 0);
++ /* s1 = RNDD(lngamma(x)), inexact */
++ if (MPFR_UNLIKELY (MPFR_OVERFLOW (flags1)))
++ {
++ if (MPFR_SIGN (s1) > 0)
++ {
++ MPFR_SAVE_EXPO_UPDATE_FLAGS (*pexpo, MPFR_FLAGS_OVERFLOW);
++ return mpfr_overflow (y, rnd, sign);
++ }
++ else
++ {
++ MPFR_SAVE_EXPO_UPDATE_FLAGS (*pexpo, MPFR_FLAGS_UNDERFLOW);
++ return mpfr_underflow (y, rnd == MPFR_RNDN ? MPFR_RNDZ : rnd, sign);
++ }
++ }
++
++ mpfr_set (s2, s1, MPFR_RNDN); /* exact */
++ mpfr_nextabove (s2); /* v = RNDU(lngamma(z0)) */
++
++ if (sign < 0)
++ rnd = MPFR_INVERT_RND (rnd); /* since the result with be negated */
++ MPFR_GROUP_INIT_2 (group, MPFR_PREC (y), t1, t2);
++ MPFR_BLOCK (flags1, inex1 = mpfr_exp (t1, s1, rnd));
++ MPFR_BLOCK (flags2, inex2 = mpfr_exp (t2, s2, rnd));
++ /* t1 is the rounding with mode 'rnd' of a lower bound on |Gamma(x)|,
++ t2 is the rounding with mode 'rnd' of an upper bound, thus if both
++ are equal, so is the wanted result. If t1 and t2 differ or the flags
++ differ, at some point of Ziv's loop they should agree. */
++ if (mpfr_equal_p (t1, t2) && flags1 == flags2)
++ {
++ MPFR_ASSERTN ((inex1 > 0 && inex2 > 0) || (inex1 < 0 && inex2 < 0));
++ mpfr_set4 (y, t1, MPFR_RNDN, sign); /* exact */
++ if (sign < 0)
++ inex1 = - inex1;
++ MPFR_SAVE_EXPO_UPDATE_FLAGS (*pexpo, flags1);
++ }
++ else
++ inex1 = 0; /* couldn't determine the result */
++ MPFR_GROUP_CLEAR (group);
++
++ return inex1;
++}
++
++#else
++
++static int
++unit_bit (mpfr_srcptr x)
+ {
+ mpfr_exp_t expo;
+ mpfr_prec_t prec;
+@@ -75,6 +138,7 @@
+
+ return (x0 >> (prec % GMP_NUMB_BITS)) & 1;
+ }
++
+ #endif
+
+ /* lngamma(x) = log(gamma(x)).
+@@ -99,12 +163,14 @@
+ mpfr_t s, t, u, v, z;
+ unsigned long m, k, maxm;
+ mpz_t *INITIALIZED(B); /* variable B declared as initialized */
+- int inexact, compared;
++ int compared;
++ int inexact = 0; /* 0 means: result y not set yet */
+ mpfr_exp_t err_s, err_t;
+ unsigned long Bm = 0; /* number of allocated B[] */
+ unsigned long oldBm;
+ double d;
+ MPFR_SAVE_EXPO_DECL (expo);
++ MPFR_ZIV_DECL (loop);
+
+ compared = mpfr_cmp_ui (z0, 1);
+
+@@ -122,7 +188,7 @@
+ if (MPFR_EXP(z0) <= - (mpfr_exp_t) MPFR_PREC(y))
+ {
+ mpfr_t l, h, g;
+- int ok, inex2;
++ int ok, inex1, inex2;
+ mpfr_prec_t prec = MPFR_PREC(y) + 14;
+ MPFR_ZIV_DECL (loop);
+
+@@ -157,14 +223,14 @@
+ mpfr_sub (h, h, g, MPFR_RNDD);
+ mpfr_mul (g, z0, z0, MPFR_RNDU);
+ mpfr_add (h, h, g, MPFR_RNDU);
+- inexact = mpfr_prec_round (l, MPFR_PREC(y), rnd);
++ inex1 = mpfr_prec_round (l, MPFR_PREC(y), rnd);
+ inex2 = mpfr_prec_round (h, MPFR_PREC(y), rnd);
+ /* Caution: we not only need l = h, but both inexact flags should
+ agree. Indeed, one of the inexact flags might be zero. In that
+ case if we assume lngamma(z0) cannot be exact, the other flag
+ should be correct. We are conservative here and request that both
+ inexact flags agree. */
+- ok = SAME_SIGN (inexact, inex2) && mpfr_cmp (l, h) == 0;
++ ok = SAME_SIGN (inex1, inex2) && mpfr_cmp (l, h) == 0;
+ if (ok)
+ mpfr_set (y, h, rnd); /* exact */
+ mpfr_clear (l);
+@@ -172,8 +238,9 @@
+ mpfr_clear (g);
+ if (ok)
+ {
++ MPFR_ZIV_FREE (loop);
+ MPFR_SAVE_EXPO_FREE (expo);
+- return mpfr_check_range (y, inexact, rnd);
++ return mpfr_check_range (y, inex1, rnd);
+ }
+ /* since we have log|gamma(x)| = - log|x| - gamma*x + O(x^2),
+ if x ~ 2^(-n), then we have a n-bit approximation, thus
+@@ -205,9 +272,10 @@
+ thus lngamma(x) = log(Pi*(x-1)/sin(Pi*(2-x))) - lngamma(2-x) */
+
+ w = precy + MPFR_INT_CEIL_LOG2 (precy);
++ w += MPFR_INT_CEIL_LOG2 (w) + 14;
++ MPFR_ZIV_INIT (loop, w);
+ while (1)
+ {
+- w += MPFR_INT_CEIL_LOG2 (w) + 14;
+ MPFR_ASSERTD(w >= 3);
+ mpfr_set_prec (s, w);
+ mpfr_set_prec (t, w);
+@@ -288,7 +356,9 @@
+ + (rnd == MPFR_RNDN)))
+ goto end;
+ }
++ MPFR_ZIV_NEXT (loop, w);
+ }
++ MPFR_ZIV_FREE (loop);
+ }
+
+ /* now z0 > 1 */
+@@ -298,10 +368,10 @@
+ /* since k is O(w), the value of log(z0*...*(z0+k-1)) is about w*log(w),
+ so there is a cancellation of ~log(w) in the argument reconstruction */
+ w = precy + MPFR_INT_CEIL_LOG2 (precy);
+-
+- do
++ w += MPFR_INT_CEIL_LOG2 (w) + 13;
++ MPFR_ZIV_INIT (loop, w);
++ while (1)
+ {
+- w += MPFR_INT_CEIL_LOG2 (w) + 13;
+ MPFR_ASSERTD (w >= 3);
+
+ /* argument reduction: we compute gamma(z0 + k), where the series
+@@ -441,6 +511,15 @@
+ #ifdef IS_GAMMA
+ err_s = MPFR_GET_EXP(s);
+ mpfr_exp (s, s, MPFR_RNDN);
++ /* If s is +Inf, we compute exp(lngamma(z0)). */
++ if (mpfr_inf_p (s))
++ {
++ inexact = mpfr_explgamma (y, z0, &expo, s, t, rnd);
++ if (inexact)
++ goto end0;
++ else
++ goto ziv_next;
++ }
+ /* before the exponential, we have s = s0 + h where
+ |h| <= (2m+48)*ulp(s), thus exp(s0) = exp(s) * exp(-h).
+ For |h| <= 1/4, we have |exp(h)-1| <= 1.2*|h| thus
+@@ -480,16 +559,26 @@
+ err_s = (err_t == err_s) ? 1 + err_s : ((err_t > err_s) ? err_t : err_s);
+ err_s += 1 - MPFR_GET_EXP(s);
+ #endif
++ if (MPFR_LIKELY (MPFR_CAN_ROUND (s, w - err_s, precy, rnd)))
++ break;
++#ifdef IS_GAMMA
++ ziv_next:
++#endif
++ MPFR_ZIV_NEXT (loop, w);
+ }
+- while (MPFR_UNLIKELY (!MPFR_CAN_ROUND (s, w - err_s, precy, rnd)));
+
++#ifdef IS_GAMMA
++ end0:
++#endif
+ oldBm = Bm;
+ while (Bm--)
+ mpz_clear (B[Bm]);
+ (*__gmp_free_func) (B, oldBm * sizeof (mpz_t));
+
+ end:
+- inexact = mpfr_set (y, s, rnd);
++ if (inexact == 0)
++ inexact = mpfr_set (y, s, rnd);
++ MPFR_ZIV_FREE (loop);
+
+ mpfr_clear (s);
+ mpfr_clear (t);
+diff -Naurd mpfr-3.1.0-a/src/mpfr.h mpfr-3.1.0-b/src/mpfr.h
+--- mpfr-3.1.0-a/src/mpfr.h 2012-04-27 01:13:15.000000000 +0000
++++ mpfr-3.1.0-b/src/mpfr.h 2012-05-07 18:52:45.000000000 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 3
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "3.1.0-p9"
++#define MPFR_VERSION_STRING "3.1.0-p10"
+
+ /* Macros dealing with MPFR VERSION */
+ #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
+diff -Naurd mpfr-3.1.0-a/src/version.c mpfr-3.1.0-b/src/version.c
+--- mpfr-3.1.0-a/src/version.c 2012-04-27 01:13:15.000000000 +0000
++++ mpfr-3.1.0-b/src/version.c 2012-05-07 18:52:45.000000000 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+- return "3.1.0-p9";
++ return "3.1.0-p10";
+ }
+diff -Naurd mpfr-3.1.0-a/tests/tgamma.c mpfr-3.1.0-b/tests/tgamma.c
+--- mpfr-3.1.0-a/tests/tgamma.c 2012-04-27 01:13:15.000000000 +0000
++++ mpfr-3.1.0-b/tests/tgamma.c 2012-05-07 18:52:45.000000000 +0000
+@@ -838,6 +838,175 @@
+ exit (1);
+ }
+
++/* Test mpfr_gamma in precision p1 by comparing it with exp(lgamma(x))
++ computing with a working precision p2. Assume that x is not an
++ integer <= 2. */
++static void
++exp_lgamma (mpfr_t x, mpfr_prec_t p1, mpfr_prec_t p2)
++{
++ mpfr_t yd, yu, zd, zu;
++ int inexd, inexu, sign;
++ int underflow = -1, overflow = -1; /* -1: we don't know */
++ int got_underflow, got_overflow;
++
++ if (mpfr_integer_p (x) && mpfr_cmp_si (x, 2) <= 0)
++ {
++ printf ("Warning! x is an integer <= 2 in exp_lgamma: ");
++ mpfr_out_str (stdout, 10, 0, x, MPFR_RNDN); putchar ('\n');
++ return;
++ }
++ mpfr_inits2 (p2, yd, yu, (mpfr_ptr) 0);
++ inexd = mpfr_lgamma (yd, &sign, x, MPFR_RNDD);
++ mpfr_set (yu, yd, MPFR_RNDN); /* exact */
++ if (inexd)
++ mpfr_nextabove (yu);
++ mpfr_clear_flags ();
++ mpfr_exp (yd, yd, MPFR_RNDD);
++ if (! mpfr_underflow_p ())
++ underflow = 0;
++ if (mpfr_overflow_p ())
++ overflow = 1;
++ mpfr_clear_flags ();
++ mpfr_exp (yu, yu, MPFR_RNDU);
++ if (mpfr_underflow_p ())
++ underflow = 1;
++ if (! mpfr_overflow_p ())
++ overflow = 0;
++ if (sign < 0)
++ {
++ mpfr_neg (yd, yd, MPFR_RNDN); /* exact */
++ mpfr_neg (yu, yu, MPFR_RNDN); /* exact */
++ mpfr_swap (yd, yu);
++ }
++ /* yd < Gamma(x) < yu (strict inequalities since x != 1 and x != 2) */
++ mpfr_inits2 (p1, zd, zu, (mpfr_ptr) 0);
++ mpfr_clear_flags ();
++ inexd = mpfr_gamma (zd, x, MPFR_RNDD); /* zd <= Gamma(x) < yu */
++ got_underflow = underflow == -1 ? -1 : !! mpfr_underflow_p ();
++ got_overflow = overflow == -1 ? -1 : !! mpfr_overflow_p ();
++ if (! mpfr_less_p (zd, yu) || inexd > 0 ||
++ got_underflow != underflow ||
++ got_overflow != overflow)
++ {
++ printf ("Error in exp_lgamma on x = ");
++ mpfr_out_str (stdout, 16, 0, x, MPFR_RNDN); putchar ('\n');
++ printf ("yu = ");
++ mpfr_dump (yu);
++ printf ("zd = ");
++ mpfr_dump (zd);
++ printf ("got inexd = %d, expected <= 0\n", inexd);
++ printf ("got underflow = %d, expected %d\n", got_underflow, underflow);
++ printf ("got overflow = %d, expected %d\n", got_overflow, overflow);
++ exit (1);
++ }
++ mpfr_clear_flags ();
++ inexu = mpfr_gamma (zu, x, MPFR_RNDU); /* zu >= Gamma(x) > yd */
++ got_underflow = underflow == -1 ? -1 : !! mpfr_underflow_p ();
++ got_overflow = overflow == -1 ? -1 : !! mpfr_overflow_p ();
++ if (! mpfr_greater_p (zu, yd) || inexu < 0 ||
++ got_underflow != underflow ||
++ got_overflow != overflow)
++ {
++ printf ("Error in exp_lgamma on x = ");
++ mpfr_out_str (stdout, 16, 0, x, MPFR_RNDN); putchar ('\n');
++ printf ("yd = ");
++ mpfr_dump (yd);
++ printf ("zu = ");
++ mpfr_dump (zu);
++ printf ("got inexu = %d, expected >= 0\n", inexu);
++ printf ("got underflow = %d, expected %d\n", got_underflow, underflow);
++ printf ("got overflow = %d, expected %d\n", got_overflow, overflow);
++ exit (1);
++ }
++ if (mpfr_equal_p (zd, zu))
++ {
++ if (inexd != 0 || inexu != 0)
++ {
++ printf ("Error in exp_lgamma on x = ");
++ mpfr_out_str (stdout, 16, 0, x, MPFR_RNDN); putchar ('\n');
++ printf ("zd = zu, thus exact, but inexd = %d and inexu = %d\n",
++ inexd, inexu);
++ exit (1);
++ }
++ MPFR_ASSERTN (got_underflow == 0);
++ MPFR_ASSERTN (got_overflow == 0);
++ }
++ else if (inexd == 0 || inexu == 0)
++ {
++ printf ("Error in exp_lgamma on x = ");
++ mpfr_out_str (stdout, 16, 0, x, MPFR_RNDN); putchar ('\n');
++ printf ("zd != zu, thus inexact, but inexd = %d and inexu = %d\n",
++ inexd, inexu);
++ exit (1);
++ }
++ mpfr_clears (yd, yu, zd, zu, (mpfr_ptr) 0);
++}
++
++static void
++exp_lgamma_tests (void)
++{
++ mpfr_t x;
++ mpfr_exp_t emin, emax;
++ int i;
++
++ emin = mpfr_get_emin ();
++ emax = mpfr_get_emax ();
++ set_emin (MPFR_EMIN_MIN);
++ set_emax (MPFR_EMAX_MAX);
++
++ mpfr_init2 (x, 96);
++ for (i = 3; i <= 8; i++)
++ {
++ mpfr_set_ui (x, i, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ mpfr_nextbelow (x);
++ exp_lgamma (x, 53, 64);
++ mpfr_nextabove (x);
++ mpfr_nextabove (x);
++ exp_lgamma (x, 53, 64);
++ }
++ mpfr_set_str (x, "1.7", 10, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ mpfr_set_str (x, "-4.6308260837372266e+07", 10, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ mpfr_set_str (x, "-90.6308260837372266e+15", 10, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ /* The following test gives a large positive result < +Inf */
++ mpfr_set_str (x, "1.2b13fc45a92dea1@14", 16, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ /* Idem for a large negative result > -Inf */
++ mpfr_set_str (x, "-1.2b13fc45a92de81@14", 16, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ /* The following two tests trigger an endless loop in r8186
++ on 64-bit machines (64-bit exponent). The second one (due
++ to undetected overflow) is a direct consequence of the
++ first one, due to the call of Gamma(2-x) if x < 1. */
++ mpfr_set_str (x, "1.2b13fc45a92dec8@14", 16, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ mpfr_set_str (x, "-1.2b13fc45a92dea8@14", 16, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ /* Similar tests (overflow threshold) for 32-bit machines. */
++ mpfr_set_str (x, "2ab68d8.657542f855111c61", 16, MPFR_RNDN);
++ exp_lgamma (x, 12, 64);
++ mpfr_set_str (x, "-2ab68d6.657542f855111c61", 16, MPFR_RNDN);
++ exp_lgamma (x, 12, 64);
++ /* The following test is an overflow on 32-bit and 64-bit machines.
++ Revision r8189 fails on 64-bit machines as the flag is unset. */
++ mpfr_set_str (x, "1.2b13fc45a92ded8@14", 16, MPFR_RNDN);
++ exp_lgamma (x, 53, 64);
++ /* On the following tests, with r8196, one gets an underflow on
++ 32-bit machines, while a normal result is expected (see FIXME
++ in gamma.c:382). */
++ mpfr_set_str (x, "-2ab68d6.657542f855111c6104", 16, MPFR_RNDN);
++ exp_lgamma (x, 12, 64); /* failure on 32-bit machines */
++ mpfr_set_str (x, "-12b13fc45a92deb.1c6c5bc964", 16, MPFR_RNDN);
++ exp_lgamma (x, 12, 64); /* failure on 64-bit machines */
++ mpfr_clear (x);
++
++ set_emin (emin);
++ set_emax (emax);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -852,6 +1021,7 @@
+ test20071231 ();
+ test20100709 ();
+ test20120426 ();
++ exp_lgamma_tests ();
+
+ data_check ("data/gamma", mpfr_gamma, "mpfr_gamma");
+
generated by cgit v0.10.2-6-g49f6 at 2024-04-27 08:24:57 (GMT)