crosstool-ng/packages/mpfr/3.0.1/0002-atan-expo-range.patch

---
 PATCHES       |    1 +
 VERSION       |    2 +-
 atan.c        |    2 +-
 mpfr.h        |    2 +-
 tests/tatan.c |   47 +++++++++++++++++++++++++++++++++++++++++++++++
 version.c     |    2 +-
 6 files changed, 52 insertions(+), 4 deletions(-)

--- a/PATCHES
+++ b/PATCHES
@@ -1,2 +1,3 @@
+atan-expo-range
 rec_sqrt-carry
 asin_exprange
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.0.1-p2
+3.0.1-p3
--- a/atan.c
+++ b/atan.c
@@ -431,5 +431,5 @@
   MPFR_GROUP_CLEAR (group);
 
   MPFR_SAVE_EXPO_FREE (expo);
-  return mpfr_check_range (arctgt, inexact, rnd_mode);
+  return mpfr_check_range (atan, inexact, rnd_mode);
 }
--- a/mpfr.h
+++ b/mpfr.h
@@ -27,7 +27,7 @@
 #define MPFR_VERSION_MAJOR 3
 #define MPFR_VERSION_MINOR 0
 #define MPFR_VERSION_PATCHLEVEL 1
-#define MPFR_VERSION_STRING "3.0.1-p2"
+#define MPFR_VERSION_STRING "3.0.1-p3"
 
 /* Macros dealing with MPFR VERSION */
 #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
--- a/tests/tatan.c
+++ b/tests/tatan.c
@@ -535,6 +535,52 @@
   mpfr_clears (a, x, y, (mpfr_ptr) 0);
 }
 
+/* http://websympa.loria.fr/wwsympa/arc/mpfr/2011-05/msg00008.html
+ * Incorrect flags (in debug mode on a 32-bit machine, assertion failure).
+ */
+static void
+reduced_expo_range (void)
+{
+  mpfr_exp_t emin, emax;
+  mpfr_t x, y, ex_y;
+  int inex, ex_inex;
+  unsigned int flags, ex_flags;
+
+  emin = mpfr_get_emin ();
+  emax = mpfr_get_emax ();
+
+  mpfr_inits2 (12, x, y, ex_y, (mpfr_ptr) 0);
+  mpfr_set_str (x, "0.1e-5", 2, MPFR_RNDN);
+
+  mpfr_set_emin (-5);
+  mpfr_set_emax (-5);
+  mpfr_clear_flags ();
+  inex = mpfr_atan (y, x, MPFR_RNDN);
+  flags = __gmpfr_flags;
+  mpfr_set_emin (emin);
+  mpfr_set_emax (emax);
+
+  mpfr_set_str (ex_y, "0.1e-5", 2, MPFR_RNDN);
+  ex_inex = 1;
+  ex_flags = MPFR_FLAGS_INEXACT;
+
+  if (SIGN (inex) != ex_inex || flags != ex_flags ||
+      ! mpfr_equal_p (y, ex_y))
+    {
+      printf ("Error in reduced_expo_range\non x = ");
+      mpfr_dump (x);
+      printf ("Expected y = ");
+      mpfr_out_str (stdout, 2, 0, ex_y, MPFR_RNDN);
+      printf ("\n         inex = %d, flags = %u\n", ex_inex, ex_flags);
+      printf ("Got      y = ");
+      mpfr_out_str (stdout, 2, 0, y, MPFR_RNDN);
+      printf ("\n         inex = %d, flags = %u\n", SIGN (inex), flags);
+      exit (1);
+    }
+
+  mpfr_clears (x, y, ex_y, (mpfr_ptr) 0);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -546,6 +592,7 @@
   smallvals_atan2 ();
   atan2_bug_20071003 ();
   atan2_different_prec ();
+  reduced_expo_range ();
 
   test_generic_atan  (2, 200, 17);
   test_generic_atan2 (2, 200, 17);
--- a/version.c
+++ b/version.c
@@ -25,5 +25,5 @@
 const char *
 mpfr_get_version (void)
 {
-  return "3.0.1-p2";
+  return "3.0.1-p3";
 }