Author: stepan Date: Fri Dec 17 02:27:22 2010 New Revision: 6193 URL: https://tracker.coreboot.org/trac/coreboot/changeset/6193
Log: This was accidently not svn added when the compiler was updated.
Update coreboot crossgcc toolchain, GDB 4.5.1, MPFR 3.0.0, GDB 7.2. Add libelf_cv_elf_h_works=no to produce a libelf.h for Cygwin. Add GDB patch to handle #pragma pack in the i386-elf gcc target.
Signed-off-by: Marc Jones marcj303@gmail.com Acked-by: Stefan Reinauer stepan@coreboot.org
Added: trunk/util/crossgcc/patches/gcc-4.5.1_pragma.patch trunk/util/crossgcc/patches/mpfr-3.0.0_allpatches_20101117.patch
Added: trunk/util/crossgcc/patches/gcc-4.5.1_pragma.patch ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/util/crossgcc/patches/gcc-4.5.1_pragma.patch Fri Dec 17 02:27:22 2010 (r6193) @@ -0,0 +1,10 @@ +diff -ur gcc-4.5.1.orig/gcc/config/i386/i386elf.h gcc-4.5.1/gcc/config/i386/i386elf.h +--- gcc-4.5.1.orig/gcc/config/i386/i386elf.h 2010-11-17 19:48:16.184401200 -0700 ++++ gcc-4.5.1/gcc/config/i386/i386elf.h 2010-11-17 20:52:54.443969900 -0700 +@@ -123,3 +123,6 @@ + #undef ASM_OUTPUT_ALIGNED_BSS + #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ + asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) ++ ++/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */ ++#define HANDLE_PRAGMA_PACK_PUSH_POP 1
Added: trunk/util/crossgcc/patches/mpfr-3.0.0_allpatches_20101117.patch ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/util/crossgcc/patches/mpfr-3.0.0_allpatches_20101117.patch Fri Dec 17 02:27:22 2010 (r6193) @@ -0,0 +1,1668 @@ +diff -rupN mpfr-3.0.0.orig/Makefile.in mpfr-3.0.0/Makefile.in +--- mpfr-3.0.0.orig/Makefile.in 2010-11-17 14:50:50.054040400 -0700 ++++ mpfr-3.0.0/Makefile.in 2010-06-10 05:00:52.000000000 -0600 +@@ -239,6 +239,7 @@ GZIP_ENV = --best + distuninstallcheck_listfiles = find . -type f -print + distcleancheck_listfiles = find . -type f -print + ACLOCAL = @ACLOCAL@ ++ALLOCA = @ALLOCA@ + AMTAR = @AMTAR@ + AR = @AR@ + AS = @AS@ +diff -rupN mpfr-3.0.0.orig/PATCHES mpfr-3.0.0/PATCHES +--- mpfr-3.0.0.orig/PATCHES 2010-11-17 14:50:50.081041900 -0700 ++++ mpfr-3.0.0/PATCHES 2010-11-17 14:51:05.016295800 -0700 +@@ -0,0 +1,8 @@ ++macros ++mpfr_set_ld ++mpfr_sub1 ++tcan_round ++mpfr_cmp/set_ui/si ++gamma_underflow ++alloca ++mpfr_out_str +diff -rupN mpfr-3.0.0.orig/VERSION mpfr-3.0.0/VERSION +--- mpfr-3.0.0.orig/VERSION 2010-11-17 14:50:50.821082000 -0700 ++++ mpfr-3.0.0/VERSION 2010-11-09 08:15:07.000000000 -0700 +@@ -1 +1 @@ +-3.0.0 ++3.0.0-p8 +diff -rupN mpfr-3.0.0.orig/acinclude.m4 mpfr-3.0.0/acinclude.m4 +--- mpfr-3.0.0.orig/acinclude.m4 2010-11-17 14:50:49.896031300 -0700 ++++ mpfr-3.0.0/acinclude.m4 2010-06-10 05:00:14.000000000 -0600 +@@ -59,6 +59,9 @@ AC_CHECK_HEADER([stdarg.h],[AC_DEFINE([H + dnl sys/fpu.h - MIPS specific + AC_CHECK_HEADERS([sys/time.h sys/fpu.h]) + ++dnl Check how to get `alloca' ++AC_FUNC_ALLOCA ++ + dnl SIZE_MAX macro + gl_SIZE_MAX + +diff -rupN mpfr-3.0.0.orig/configure mpfr-3.0.0/configure +--- mpfr-3.0.0.orig/configure 2010-11-17 14:50:49.945034100 -0700 ++++ mpfr-3.0.0/configure 2010-06-25 07:23:05.000000000 -0600 +@@ -783,6 +783,7 @@ LIBTOOL + OBJDUMP + DLLTOOL + AS ++ALLOCA + MPFR_LIBM + ANSI2KNR + U +@@ -5622,6 +5623,197 @@ fi + done + + ++# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works ++# for constant arguments. Useless! ++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5 ++$as_echo_n "checking for working alloca.h... " >&6; } ++if test "${ac_cv_working_alloca_h+set}" = set; then : ++ $as_echo_n "(cached) " >&6 ++else ++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext ++/* end confdefs.h. */ ++#include <alloca.h> ++int ++main () ++{ ++char *p = (char *) alloca (2 * sizeof (int)); ++ if (p) return 0; ++ ; ++ return 0; ++} ++_ACEOF ++if ac_fn_c_try_link "$LINENO"; then : ++ ac_cv_working_alloca_h=yes ++else ++ ac_cv_working_alloca_h=no ++fi ++rm -f core conftest.err conftest.$ac_objext \ ++ conftest$ac_exeext conftest.$ac_ext ++fi ++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5 ++$as_echo "$ac_cv_working_alloca_h" >&6; } ++if test $ac_cv_working_alloca_h = yes; then ++ ++$as_echo "#define HAVE_ALLOCA_H 1" >>confdefs.h ++ ++fi ++ ++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5 ++$as_echo_n "checking for alloca... " >&6; } ++if test "${ac_cv_func_alloca_works+set}" = set; then : ++ $as_echo_n "(cached) " >&6 ++else ++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext ++/* end confdefs.h. */ ++#ifdef __GNUC__ ++# define alloca __builtin_alloca ++#else ++# ifdef _MSC_VER ++# include <malloc.h> ++# define alloca _alloca ++# else ++# ifdef HAVE_ALLOCA_H ++# include <alloca.h> ++# else ++# ifdef _AIX ++ #pragma alloca ++# else ++# ifndef alloca /* predefined by HP cc +Olibcalls */ ++char *alloca (); ++# endif ++# endif ++# endif ++# endif ++#endif ++ ++int ++main () ++{ ++char *p = (char *) alloca (1); ++ if (p) return 0; ++ ; ++ return 0; ++} ++_ACEOF ++if ac_fn_c_try_link "$LINENO"; then : ++ ac_cv_func_alloca_works=yes ++else ++ ac_cv_func_alloca_works=no ++fi ++rm -f core conftest.err conftest.$ac_objext \ ++ conftest$ac_exeext conftest.$ac_ext ++fi ++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5 ++$as_echo "$ac_cv_func_alloca_works" >&6; } ++ ++if test $ac_cv_func_alloca_works = yes; then ++ ++$as_echo "#define HAVE_ALLOCA 1" >>confdefs.h ++ ++else ++ # The SVR3 libPW and SVR4 libucb both contain incompatible functions ++# that cause trouble. Some versions do not even contain alloca or ++# contain a buggy version. If you still want to use their alloca, ++# use ar to extract alloca.o from them instead of compiling alloca.c. ++ ++ALLOCA=${LIBOBJDIR}alloca.$ac_objext ++ ++$as_echo "#define C_ALLOCA 1" >>confdefs.h ++ ++ ++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether `alloca.c' needs Cray hooks" >&5 ++$as_echo_n "checking whether `alloca.c' needs Cray hooks... " >&6; } ++if test "${ac_cv_os_cray+set}" = set; then : ++ $as_echo_n "(cached) " >&6 ++else ++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext ++/* end confdefs.h. */ ++#if defined CRAY && ! defined CRAY2 ++webecray ++#else ++wenotbecray ++#endif ++ ++_ACEOF ++if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | ++ $EGREP "webecray" >/dev/null 2>&1; then : ++ ac_cv_os_cray=yes ++else ++ ac_cv_os_cray=no ++fi ++rm -f conftest* ++ ++fi ++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_os_cray" >&5 ++$as_echo "$ac_cv_os_cray" >&6; } ++if test $ac_cv_os_cray = yes; then ++ for ac_func in _getb67 GETB67 getb67; do ++ as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" ++eval as_val=$$as_ac_var ++ if test "x$as_val" = x""yes; then : ++ ++cat >>confdefs.h <<_ACEOF ++#define CRAY_STACKSEG_END $ac_func ++_ACEOF ++ ++ break ++fi ++ ++ done ++fi ++ ++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C alloca" >&5 ++$as_echo_n "checking stack direction for C alloca... " >&6; } ++if test "${ac_cv_c_stack_direction+set}" = set; then : ++ $as_echo_n "(cached) " >&6 ++else ++ if test "$cross_compiling" = yes; then : ++ ac_cv_c_stack_direction=0 ++else ++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext ++/* end confdefs.h. */ ++$ac_includes_default ++int ++find_stack_direction () ++{ ++ static char *addr = 0; ++ auto char dummy; ++ if (addr == 0) ++ { ++ addr = &dummy; ++ return find_stack_direction (); ++ } ++ else ++ return (&dummy > addr) ? 1 : -1; ++} ++ ++int ++main () ++{ ++ return find_stack_direction () < 0; ++} ++_ACEOF ++if ac_fn_c_try_run "$LINENO"; then : ++ ac_cv_c_stack_direction=1 ++else ++ ac_cv_c_stack_direction=-1 ++fi ++rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ ++ conftest.$ac_objext conftest.beam conftest.$ac_ext ++fi ++ ++fi ++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5 ++$as_echo "$ac_cv_c_stack_direction" >&6; } ++cat >>confdefs.h <<_ACEOF ++#define STACK_DIRECTION $ac_cv_c_stack_direction ++_ACEOF ++ ++ ++fi ++ ++ + + for ac_header in stdint.h + do : +@@ -7564,13 +7756,13 @@ if test "${lt_cv_nm_interface+set}" = se + else + lt_cv_nm_interface="BSD nm" + echo "int some_variable = 0;" > conftest.$ac_ext +- (eval echo ""$as_me:7567: $ac_compile"" >&5) ++ (eval echo ""$as_me:7759: $ac_compile"" >&5) + (eval "$ac_compile" 2>conftest.err) + cat conftest.err >&5 +- (eval echo ""$as_me:7570: $NM \"conftest.$ac_objext\""" >&5) ++ (eval echo ""$as_me:7762: $NM \"conftest.$ac_objext\""" >&5) + (eval "$NM "conftest.$ac_objext"" 2>conftest.err > conftest.out) + cat conftest.err >&5 +- (eval echo ""$as_me:7573: output"" >&5) ++ (eval echo ""$as_me:7765: output"" >&5) + cat conftest.out >&5 + if $GREP 'External.*some_variable' conftest.out > /dev/null; then + lt_cv_nm_interface="MS dumpbin" +@@ -8772,7 +8964,7 @@ ia64-*-hpux*) + ;; + *-*-irix6*) + # Find out which ABI we are using. +- echo '#line 8775 "configure"' > conftest.$ac_ext ++ echo '#line 8967 "configure"' > conftest.$ac_ext + if { { eval echo ""$as_me":${as_lineno-$LINENO}: "$ac_compile""; } >&5 + (eval $ac_compile) 2>&5 + ac_status=$? +@@ -10032,11 +10224,11 @@ else + -e 's:.*FLAGS}{0,1} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` +- (eval echo ""$as_me:10035: $lt_compile"" >&5) ++ (eval echo ""$as_me:10227: $lt_compile"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 +- echo "$as_me:10039: $? = $ac_status" >&5 ++ echo "$as_me:10231: $? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. +@@ -10371,11 +10563,11 @@ else + -e 's:.*FLAGS}{0,1} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` +- (eval echo ""$as_me:10374: $lt_compile"" >&5) ++ (eval echo ""$as_me:10566: $lt_compile"" >&5) + (eval "$lt_compile" 2>conftest.err) + ac_status=$? + cat conftest.err >&5 +- echo "$as_me:10378: $? = $ac_status" >&5 ++ echo "$as_me:10570: $? = $ac_status" >&5 + if (exit $ac_status) && test -s "$ac_outfile"; then + # The compiler can only warn and ignore the option if not recognized + # So say no if there are warnings other than the usual output. +@@ -10476,11 +10668,11 @@ else + -e 's:.*FLAGS}{0,1} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` +- (eval echo ""$as_me:10479: $lt_compile"" >&5) ++ (eval echo ""$as_me:10671: $lt_compile"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 +- echo "$as_me:10483: $? = $ac_status" >&5 ++ echo "$as_me:10675: $? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized +@@ -10531,11 +10723,11 @@ else + -e 's:.*FLAGS}{0,1} :&$lt_compiler_flag :; t' \ + -e 's: [^ ]*conftest.: $lt_compiler_flag&:; t' \ + -e 's:$: $lt_compiler_flag:'` +- (eval echo ""$as_me:10534: $lt_compile"" >&5) ++ (eval echo ""$as_me:10726: $lt_compile"" >&5) + (eval "$lt_compile" 2>out/conftest.err) + ac_status=$? + cat out/conftest.err >&5 +- echo "$as_me:10538: $? = $ac_status" >&5 ++ echo "$as_me:10730: $? = $ac_status" >&5 + if (exit $ac_status) && test -s out/conftest2.$ac_objext + then + # The compiler can only warn and ignore the option if not recognized +@@ -12915,7 +13107,7 @@ else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +-#line 12918 "configure" ++#line 13110 "configure" + #include "confdefs.h" + + #if HAVE_DLFCN_H +@@ -13011,7 +13203,7 @@ else + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +-#line 13014 "configure" ++#line 13206 "configure" + #include "confdefs.h" + + #if HAVE_DLFCN_H +diff -rupN mpfr-3.0.0.orig/gamma.c mpfr-3.0.0/gamma.c +--- mpfr-3.0.0.orig/gamma.c 2010-11-17 14:50:50.003037400 -0700 ++++ mpfr-3.0.0/gamma.c 2010-07-09 18:11:46.000000000 -0600 +@@ -274,7 +274,7 @@ mpfr_gamma (mpfr_ptr gamma, mpfr_srcptr + /* 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_log (xp, xp, MPFR_RNDD); ++ mpfr_log2 (xp, xp, MPFR_RNDD); + mpfr_sub_ui (xp, xp, 1, MPFR_RNDD); + mpfr_mul (xp, xp, x, MPFR_RNDU); + +@@ -303,8 +303,8 @@ mpfr_gamma (mpfr_ptr gamma, mpfr_srcptr + { + mpfr_sub (tmp, tmp, tmp2, MPFR_RNDZ); /* low bnd on |sin(Pi*(2-x))| */ + mpfr_ui_div (tmp, 12, tmp, MPFR_RNDU); /* upper bound */ +- mpfr_log (tmp, tmp, MPFR_RNDU); +- mpfr_add (tmp, tmp, xp, MPFR_RNDU); ++ mpfr_log2 (tmp, tmp, MPFR_RNDU); ++ mpfr_add (xp, tmp, xp, MPFR_RNDU); + underflow = mpfr_cmp_si (xp, expo.saved_emin - 2) <= 0; + } + +diff -rupN mpfr-3.0.0.orig/mpfr.h mpfr-3.0.0/mpfr.h +--- mpfr-3.0.0.orig/mpfr.h 2010-11-17 14:50:50.066041000 -0700 ++++ mpfr-3.0.0/mpfr.h 2010-11-09 08:15:07.000000000 -0700 +@@ -27,7 +27,7 @@ http://www.gnu.org/licenses/ or write to + #define MPFR_VERSION_MAJOR 3 + #define MPFR_VERSION_MINOR 0 + #define MPFR_VERSION_PATCHLEVEL 0 +-#define MPFR_VERSION_STRING "3.0.0" ++#define MPFR_VERSION_STRING "3.0.0-p8" + + /* Macros dealing with MPFR VERSION */ + #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) +@@ -67,6 +67,16 @@ MPFR_VERSION_NUM(MPFR_VERSION_MAJOR,MPFR + # define _MPFR_H_HAVE_INTMAX_T 1 + #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. */ ++typedef void mpfr_void; ++typedef int mpfr_int; ++typedef unsigned int mpfr_uint; ++typedef long mpfr_long; ++typedef unsigned long mpfr_ulong; ++typedef size_t mpfr_size_t; ++ + /* Definition of rounding modes (DON'T USE MPFR_RNDNA!). + Warning! Changing the contents of this enum should be seen as an + interface change since the old and the new types are not compatible +@@ -136,7 +146,7 @@ typedef int mpfr_sign_t; + typedef mp_exp_t mpfr_exp_t; + + /* Definition of the standard exponent limits */ +-#define MPFR_EMAX_DEFAULT ((mpfr_exp_t) (((unsigned long) 1 << 30) - 1)) ++#define MPFR_EMAX_DEFAULT ((mpfr_exp_t) (((mpfr_ulong) 1 << 30) - 1)) + #define MPFR_EMIN_DEFAULT (-(MPFR_EMAX_DEFAULT)) + + /* Definition of the main structure */ +@@ -725,13 +735,13 @@ __MPFR_DECLSPEC int mpfr_custom_get_k + unexpected results with future compilers and aggressive optimisations. + Why not working only with signed types, using INT_MIN and LONG_MIN? */ + #if __GMP_MP_SIZE_T_INT +-#define __MPFR_EXP_NAN ((mpfr_exp_t)((~((~(unsigned int)0)>>1))+2)) +-#define __MPFR_EXP_ZERO ((mpfr_exp_t)((~((~(unsigned int)0)>>1))+1)) +-#define __MPFR_EXP_INF ((mpfr_exp_t)((~((~(unsigned int)0)>>1))+3)) ++#define __MPFR_EXP_NAN ((mpfr_exp_t)((~((~(mpfr_uint)0)>>1))+2)) ++#define __MPFR_EXP_ZERO ((mpfr_exp_t)((~((~(mpfr_uint)0)>>1))+1)) ++#define __MPFR_EXP_INF ((mpfr_exp_t)((~((~(mpfr_uint)0)>>1))+3)) + #else +-#define __MPFR_EXP_NAN ((mpfr_exp_t)((~((~(unsigned long)0)>>1))+2)) +-#define __MPFR_EXP_ZERO ((mpfr_exp_t)((~((~(unsigned long)0)>>1))+1)) +-#define __MPFR_EXP_INF ((mpfr_exp_t)((~((~(unsigned long)0)>>1))+3)) ++#define __MPFR_EXP_NAN ((mpfr_exp_t)((~((~(mpfr_ulong)0)>>1))+2)) ++#define __MPFR_EXP_ZERO ((mpfr_exp_t)((~((~(mpfr_ulong)0)>>1))+1)) ++#define __MPFR_EXP_INF ((mpfr_exp_t)((~((~(mpfr_ulong)0)>>1))+3)) + #endif + + /* Define MPFR_USE_EXTENSION to avoid "gcc -pedantic" warnings. */ +@@ -760,9 +770,9 @@ __MPFR_DECLSPEC int mpfr_custom_get_k + #define mpfr_inf_p(_x) ((_x)->_mpfr_exp == __MPFR_EXP_INF) + #define mpfr_zero_p(_x) ((_x)->_mpfr_exp == __MPFR_EXP_ZERO) + #define mpfr_regular_p(_x) ((_x)->_mpfr_exp > __MPFR_EXP_INF) +-#define mpfr_sgn(_x) \ +- ((_x)->_mpfr_exp < __MPFR_EXP_INF ? \ +- (mpfr_nan_p (_x) ? mpfr_set_erangeflag () : (void) 0), 0 : \ ++#define mpfr_sgn(_x) \ ++ ((_x)->_mpfr_exp < __MPFR_EXP_INF ? \ ++ (mpfr_nan_p (_x) ? mpfr_set_erangeflag () : (mpfr_void) 0), 0 : \ + MPFR_SIGN (_x)) + + /* Prevent them from using as lvalues */ +@@ -798,50 +808,72 @@ __MPFR_DECLSPEC int mpfr_custom_get_k + anyway. Checking with other ICC versions is needed. Possibly detect + whether warnings are produced or not with a configure test. + + Remove C++ too, since it complains too much. */ ++/* Added casts to improve robustness in case of undefined behavior and ++ compiler extensions based on UB (in particular -fwrapv). MPFR doesn't ++ use such extensions, but these macros will be used by 3rd-party code, ++ where such extensions may be required. ++ Moreover casts to unsigned long have been added to avoid warnings in ++ programs that use MPFR and are compiled with -Wconversion; such casts ++ are OK since if X is a constant expression, then (unsigned long) X is ++ also a constant expression, so that the optimizations still work. The ++ warnings are probably related to the following two bugs: ++ http://gcc.gnu.org/bugzilla/show_bug.cgi?id=4210 ++ http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38470 (possibly a variant) ++ and the casts could be removed once these bugs are fixed. ++ Casts shouldn't be used on the generic calls (to the ..._2exp functions), ++ where implicit conversions are performed. Indeed, having at least one ++ implicit conversion in the macro allows the compiler to emit diagnostics ++ when normally expected, for instance in the following call: ++ mpfr_set_ui (x, "foo", MPFR_RNDN); ++ If this is not possible (for future macros), one of the tricks described ++ on http://groups.google.com/group/comp.std.c/msg/e92abd24bf9eaf7b could ++ be used. */ + #if defined (__GNUC__) && !defined(__ICC) && !defined(__cplusplus) + #if (__GNUC__ >= 2) + #undef mpfr_cmp_ui +-/* We use the fact that mpfr_sgn on NaN sets the erange flag and returns 0. */ +-#define mpfr_cmp_ui(_f,_u) \ +- (__builtin_constant_p (_u) && (_u) == 0 ? \ +- mpfr_sgn (_f) : \ +- mpfr_cmp_ui_2exp ((_f),(_u),0)) ++/* We use the fact that mpfr_sgn on NaN sets the erange flag and returns 0. ++ But warning! mpfr_sgn is specified as a macro in the API, thus the macro ++ mustn't be used if side effects are possible, like here. */ ++#define mpfr_cmp_ui(_f,_u) \ ++ (__builtin_constant_p (_u) && (mpfr_ulong) (_u) == 0 ? \ ++ (mpfr_sgn) (_f) : \ ++ mpfr_cmp_ui_2exp ((_f), (_u), 0)) + #undef mpfr_cmp_si +-#define mpfr_cmp_si(_f,_s) \ +- (__builtin_constant_p (_s) && (_s) >= 0 ? \ +- mpfr_cmp_ui ((_f), (_s)) : \ ++#define mpfr_cmp_si(_f,_s) \ ++ (__builtin_constant_p (_s) && (mpfr_long) (_s) >= 0 ? \ ++ mpfr_cmp_ui ((_f), (mpfr_ulong) (mpfr_long) (_s)) : \ + mpfr_cmp_si_2exp ((_f), (_s), 0)) + #if __GNUC__ > 2 || __GNUC_MINOR__ >= 95 + #undef mpfr_set_ui +-#define mpfr_set_ui(_f,_u,_r) \ +- (__builtin_constant_p (_u) && (_u) == 0 ? \ +- __extension__ ({ \ +- mpfr_ptr _p = (_f); \ +- _p->_mpfr_sign = 1; \ +- _p->_mpfr_exp = __MPFR_EXP_ZERO; \ +- (void) (_r); 0; }) : \ ++#define mpfr_set_ui(_f,_u,_r) \ ++ (__builtin_constant_p (_u) && (mpfr_ulong) (_u) == 0 ? \ ++ __extension__ ({ \ ++ mpfr_ptr _p = (_f); \ ++ _p->_mpfr_sign = 1; \ ++ _p->_mpfr_exp = __MPFR_EXP_ZERO; \ ++ (mpfr_void) (_r); 0; }) : \ + mpfr_set_ui_2exp ((_f), (_u), 0, (_r))) + #endif + #undef mpfr_set_si +-#define mpfr_set_si(_f,_s,_r) \ +- (__builtin_constant_p (_s) && (_s) >= 0 ? \ +- mpfr_set_ui ((_f), (_s), (_r)) : \ ++#define mpfr_set_si(_f,_s,_r) \ ++ (__builtin_constant_p (_s) && (mpfr_long) (_s) >= 0 ? \ ++ mpfr_set_ui ((_f), (mpfr_ulong) (mpfr_long) (_s), (_r)) : \ + mpfr_set_si_2exp ((_f), (_s), 0, (_r))) + #endif + #endif + + /* Macro version of mpfr_stack interface for fast access */ +-#define mpfr_custom_get_size(p) ((size_t) \ ++#define mpfr_custom_get_size(p) ((mpfr_size_t) \ + (((p)+GMP_NUMB_BITS-1)/GMP_NUMB_BITS*sizeof (mp_limb_t))) + #define mpfr_custom_init(m,p) do {} while (0) +-#define mpfr_custom_get_significand(x) ((void*)((x)->_mpfr_d)) ++#define mpfr_custom_get_significand(x) ((mpfr_void*)((x)->_mpfr_d)) + #define mpfr_custom_get_exp(x) ((x)->_mpfr_exp) + #define mpfr_custom_move(x,m) do { ((x)->_mpfr_d = (mp_limb_t*)(m)); } while (0) + #define mpfr_custom_init_set(x,k,e,p,m) do { \ + mpfr_ptr _x = (x); \ + mpfr_exp_t _e; \ + mpfr_kind_t _t; \ +- int _s, _k; \ ++ mpfr_int _s, _k; \ + _k = (k); \ + if (_k >= 0) { \ + _t = (mpfr_kind_t) _k; \ +@@ -858,11 +890,13 @@ __MPFR_DECLSPEC int mpfr_custom_get_k + _x->_mpfr_exp = _e; \ + _x->_mpfr_d = (mp_limb_t*) (m); \ + } while (0) +-#define mpfr_custom_get_kind(x) \ +- ( (x)->_mpfr_exp > __MPFR_EXP_INF ? (int)MPFR_REGULAR_KIND*MPFR_SIGN (x) \ +- : (x)->_mpfr_exp == __MPFR_EXP_INF ? (int)MPFR_INF_KIND*MPFR_SIGN (x) \ +- : (x)->_mpfr_exp == __MPFR_EXP_NAN ? (int)MPFR_NAN_KIND \ +- : (int) MPFR_ZERO_KIND * MPFR_SIGN (x) ) ++#define mpfr_custom_get_kind(x) \ ++ ( (x)->_mpfr_exp > __MPFR_EXP_INF ? \ ++ (mpfr_int) MPFR_REGULAR_KIND * MPFR_SIGN (x) \ ++ : (x)->_mpfr_exp == __MPFR_EXP_INF ? \ ++ (mpfr_int) MPFR_INF_KIND * MPFR_SIGN (x) \ ++ : (x)->_mpfr_exp == __MPFR_EXP_NAN ? (mpfr_int) MPFR_NAN_KIND \ ++ : (mpfr_int) MPFR_ZERO_KIND * MPFR_SIGN (x) ) + + + #endif /* MPFR_USE_NO_MACRO */ +diff -rupN mpfr-3.0.0.orig/mpfr.texi mpfr-3.0.0/mpfr.texi +--- mpfr-3.0.0.orig/mpfr.texi 2010-11-17 14:50:50.069041200 -0700 ++++ mpfr-3.0.0/mpfr.texi 2010-06-23 05:03:12.000000000 -0600 +@@ -2050,7 +2050,7 @@ first digit and a trailing exponent in b + are printed. If @var{base} is greater than 10, @samp{@@} will be used + instead of @samp{e} as exponent delimiter. + +-Return the number of bytes written, or if an error occurred, return 0. ++Return the number of characters written, or if an error occurred, return 0. + @end deftypefun + + @deftypefun size_t mpfr_inp_str (mpfr_t @var{rop}, FILE *@var{stream}, int @var{base}, mpfr_rnd_t @var{rnd}) +diff -rupN mpfr-3.0.0.orig/out_str.c mpfr-3.0.0/out_str.c +--- mpfr-3.0.0.orig/out_str.c 2010-11-17 14:50:50.080041800 -0700 ++++ mpfr-3.0.0/out_str.c 2010-06-23 05:03:12.000000000 -0600 +@@ -22,6 +22,16 @@ http://www.gnu.org/licenses/ or write to + + #include "mpfr-impl.h" + ++/* Warning! S should not contain "%". */ ++#define OUT_STR_RET(S) \ ++ do \ ++ { \ ++ int r; \ ++ r = fprintf (stream, (S)); \ ++ return r < 0 ? 0 : r; \ ++ } \ ++ while (0) ++ + size_t + mpfr_out_str (FILE *stream, int base, size_t n_digits, mpfr_srcptr op, + mpfr_rnd_t rnd_mode) +@@ -29,6 +39,7 @@ mpfr_out_str (FILE *stream, int base, si + char *s, *s0; + size_t l; + mpfr_exp_t e; ++ int err; + + MPFR_ASSERTN (base >= 2 && base <= 62); + +@@ -36,37 +47,16 @@ mpfr_out_str (FILE *stream, int base, si + if (stream == NULL) + stream = stdout; + +- if (MPFR_IS_NAN(op)) +- { +- fprintf (stream, "@NaN@"); +- return 3; +- } +- +- if (MPFR_IS_INF(op)) +- { +- if (MPFR_SIGN(op) > 0) +- { +- fprintf (stream, "@Inf@"); +- return 3; +- } +- else +- { +- fprintf (stream, "-@Inf@"); +- return 4; +- } +- } +- +- if (MPFR_IS_ZERO(op)) ++ if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (op))) + { +- if (MPFR_SIGN(op) > 0) +- { +- fprintf(stream, "0"); +- return 1; +- } ++ if (MPFR_IS_NAN (op)) ++ OUT_STR_RET ("@NaN@"); ++ else if (MPFR_IS_INF (op)) ++ OUT_STR_RET (MPFR_IS_POS (op) ? "@Inf@" : "-@Inf@"); + else + { +- fprintf(stream, "-0"); +- return 2; ++ MPFR_ASSERTD (MPFR_IS_ZERO (op)); ++ OUT_STR_RET (MPFR_IS_POS (op) ? "0" : "-0"); + } + } + +@@ -77,21 +67,31 @@ mpfr_out_str (FILE *stream, int base, si + + l = strlen (s) + 1; /* size of allocated block returned by mpfr_get_str + - may be incorrect, as only an upper bound? */ +- if (*s == '-') +- fputc (*s++, stream); + +- /* outputs mantissa */ +- fputc (*s++, stream); e--; /* leading digit */ +- fputc ((unsigned char) MPFR_DECIMAL_POINT, stream); +- fputs (s, stream); /* rest of mantissa */ ++ /* outputs possible sign and significand */ ++ err = (*s == '-' && fputc (*s++, stream) == EOF) ++ || fputc (*s++, stream) == EOF /* leading digit */ ++ || fputc ((unsigned char) MPFR_DECIMAL_POINT, stream) == EOF ++ || fputs (s, stream) == EOF; /* trailing significand */ + (*__gmp_free_func) (s0, l); ++ if (MPFR_UNLIKELY (err)) ++ return 0; ++ ++ e--; /* due to the leading digit */ + + /* outputs exponent */ + if (e) + { ++ int r; ++ + MPFR_ASSERTN(e >= LONG_MIN); + MPFR_ASSERTN(e <= LONG_MAX); +- l += fprintf (stream, (base <= 10 ? "e%ld" : "@%ld"), (long) e); ++ ++ r = fprintf (stream, (base <= 10 ? "e%ld" : "@%ld"), (long) e); ++ if (MPFR_UNLIKELY (r < 0)) ++ return 0; ++ ++ l += r; + } + + return l; +diff -rupN mpfr-3.0.0.orig/set_ld.c mpfr-3.0.0/set_ld.c +--- mpfr-3.0.0.orig/set_ld.c 2010-11-17 14:50:50.224050100 -0700 ++++ mpfr-3.0.0/set_ld.c 2010-10-21 15:18:26.000000000 -0600 +@@ -102,21 +102,25 @@ mpfr_set_ld (mpfr_ptr r, long double d, + { + x /= div13; /* exact */ + shift_exp += 8192; ++ mpfr_div_2si (t, t, 8192, MPFR_RNDZ); + } + if (ABS (x) >= div12) + { + x /= div12; /* exact */ + shift_exp += 4096; ++ mpfr_div_2si (t, t, 4096, MPFR_RNDZ); + } + if (ABS (x) >= div11) + { + x /= div11; /* exact */ + shift_exp += 2048; ++ mpfr_div_2si (t, t, 2048, MPFR_RNDZ); + } + if (ABS (x) >= div10) + { + x /= div10; /* exact */ + shift_exp += 1024; ++ mpfr_div_2si (t, t, 1024, MPFR_RNDZ); + } + /* warning: we may have DBL_MAX=2^1024*(1-2^(-53)) < x < 2^1024, + therefore we have one extra exponent reduction step */ +@@ -124,9 +128,10 @@ mpfr_set_ld (mpfr_ptr r, long double d, + { + x /= div9; /* exact */ + shift_exp += 512; ++ mpfr_div_2si (t, t, 512, MPFR_RNDZ); + } + } /* Check overflow of double */ +- else ++ else /* no overflow on double */ + { + long double div9, div10, div11; + +@@ -149,29 +154,34 @@ mpfr_set_ld (mpfr_ptr r, long double d, + { + x /= div13; /* exact */ + shift_exp -= 8192; ++ mpfr_mul_2si (t, t, 8192, MPFR_RNDZ); + } + if (ABS (x) <= div12) + { + x /= div12; /* exact */ + shift_exp -= 4096; ++ mpfr_mul_2si (t, t, 4096, MPFR_RNDZ); + } + if (ABS (x) <= div11) + { + x /= div11; /* exact */ + shift_exp -= 2048; ++ mpfr_mul_2si (t, t, 2048, MPFR_RNDZ); + } + if (ABS (x) <= div10) + { + x /= div10; /* exact */ + shift_exp -= 1024; ++ mpfr_mul_2si (t, t, 1024, MPFR_RNDZ); + } + if (ABS(x) <= div9) + { + x /= div9; /* exact */ + shift_exp -= 512; ++ mpfr_mul_2si (t, t, 512, MPFR_RNDZ); + } + } +- else ++ else /* no underflow */ + { + inexact = mpfr_set_d (u, (double) x, MPFR_RNDZ); + MPFR_ASSERTD (inexact == 0); +diff -rupN mpfr-3.0.0.orig/sub1.c mpfr-3.0.0/sub1.c +--- mpfr-3.0.0.orig/sub1.c 2010-11-17 14:50:50.254051800 -0700 ++++ mpfr-3.0.0/sub1.c 2010-10-21 14:59:32.000000000 -0600 +@@ -37,7 +37,9 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mp + mp_size_t cancel2, an, bn, cn, cn0; + mp_limb_t *ap, *bp, *cp; + mp_limb_t carry, bb, cc, borrow = 0; +- int inexact, shift_b, shift_c, is_exact = 1, down = 0, add_exp = 0; ++ int inexact, shift_b, shift_c, add_exp = 0; ++ int cmp_low = 0; /* used for rounding to nearest: 0 if low(b) = low(c), ++ negative if low(b) < low(c), positive if low(b)>low(c) */ + int sh, k; + MPFR_TMP_DECL(marker); + +@@ -196,7 +198,8 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mp + } + + #ifdef DEBUG +- printf ("shift_b=%d shift_c=%d diffexp=%lu\n", shift_b, shift_c, ++ printf ("rnd=%s shift_b=%d shift_c=%d diffexp=%lu\n", ++ mpfr_print_rnd_mode (rnd_mode), shift_b, shift_c, + (unsigned long) diff_exp); + #endif + +@@ -307,17 +310,18 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mp + { + if (MPFR_LIKELY(sh)) + { +- is_exact = (carry == 0); + /* can decide except when carry = 2^(sh-1) [middle] + or carry = 0 [truncate, but cannot decide inexact flag] */ +- down = (carry < (MPFR_LIMB_ONE << (sh - 1))); + if (carry > (MPFR_LIMB_ONE << (sh - 1))) + goto add_one_ulp; +- else if ((0 < carry) && down) ++ else if ((0 < carry) && (carry < (MPFR_LIMB_ONE << (sh - 1)))) + { + inexact = -1; /* result if smaller than exact value */ + goto truncate; + } ++ /* now carry = 2^(sh-1), in which case cmp_low=2, ++ or carry = 0, in which case cmp_low=0 */ ++ cmp_low = (carry == 0) ? 0 : 2; + } + } + else /* directed rounding: set rnd_mode to RNDZ iff toward zero */ +@@ -344,12 +348,32 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mp + cn -= (long int) an + cancel2; + + #ifdef DEBUG +- printf ("last %d bits from a are %lu, bn=%ld, cn=%ld\n", ++ printf ("last sh=%d bits from a are %lu, bn=%ld, cn=%ld\n", + sh, (unsigned long) carry, (long) bn, (long) cn); + #endif + ++ /* for rounding to nearest, we couldn't conclude up to here in the following ++ cases: ++ 1. sh = 0, then cmp_low=0: we can either truncate, subtract one ulp ++ or add one ulp: -1 ulp < low(b)-low(c) < 1 ulp ++ 2. sh > 0 but the low sh bits from high(b)-high(c) equal 2^(sh-1): ++ -0.5 ulp <= -1/2^sh < low(b)-low(c)-0.5 < 1/2^sh <= 0.5 ulp ++ we can't decide the rounding, in that case cmp_low=2: ++ either we truncate and flag=-1, or we add one ulp and flag=1 ++ 3. the low sh>0 bits from high(b)-high(c) equal 0: we know we have to ++ truncate but we can't decide the ternary value, here cmp_low=0: ++ -0.5 ulp <= -1/2^sh < low(b)-low(c) < 1/2^sh <= 0.5 ulp ++ we always truncate and inexact can be any of -1,0,1 ++ */ ++ ++ /* note: here cn might exceed cn0, in which case we consider a zero limb */ + for (k = 0; (bn > 0) || (cn > 0); k = 1) + { ++ /* if cmp_low < 0, we know low(b) - low(c) < 0 ++ if cmp_low > 0, we know low(b) - low(c) > 0 ++ (more precisely if cmp_low = 2, low(b) - low(c) = 0.5 ulp so far) ++ if cmp_low = 0, so far low(b) - low(c) = 0 */ ++ + /* get next limbs */ + bb = (bn > 0) ? bp[--bn] : 0; + if ((cn > 0) && (cn-- <= cn0)) +@@ -357,76 +381,115 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mp + else + cc = 0; + +- /* down is set when low(b) < low(c) */ +- if (down == 0) +- down = (bb < cc); ++ /* cmp_low compares low(b) and low(c) */ ++ if (cmp_low == 0) /* case 1 or 3 */ ++ cmp_low = (bb < cc) ? -2+k : (bb > cc) ? 1 : 0; ++ ++ /* Case 1 for k=0 splits into 7 subcases: ++ 1a: bb > cc + half ++ 1b: bb = cc + half ++ 1c: 0 < bb - cc < half ++ 1d: bb = cc ++ 1e: -half < bb - cc < 0 ++ 1f: bb - cc = -half ++ 1g: bb - cc < -half ++ ++ Case 2 splits into 3 subcases: ++ 2a: bb > cc ++ 2b: bb = cc ++ 2c: bb < cc ++ ++ Case 3 splits into 3 subcases: ++ 3a: bb > cc ++ 3b: bb = cc ++ 3c: bb < cc ++ */ + + /* the case rounding to nearest with sh=0 is special since one couldn't + subtract above 1/2 ulp in the trailing limb of the result */ +- if ((rnd_mode == MPFR_RNDN) && sh == 0 && k == 0) ++ if (rnd_mode == MPFR_RNDN && sh == 0 && k == 0) /* case 1 for k=0 */ + { + mp_limb_t half = MPFR_LIMB_HIGHBIT; + +- is_exact = (bb == cc); +- + /* add one ulp if bb > cc + half + truncate if cc - half < bb < cc + half + sub one ulp if bb < cc - half + */ + +- if (down) ++ if (cmp_low < 0) /* bb < cc: -1 ulp < low(b) - low(c) < 0, ++ cases 1e, 1f and 1g */ + { + if (cc >= half) + cc -= half; +- else ++ else /* since bb < cc < half, bb+half < 2*half */ + bb += half; ++ /* now we have bb < cc + half: ++ we have to subtract one ulp if bb < cc, ++ and truncate if bb > cc */ + } +- else /* bb >= cc */ ++ else if (cmp_low >= 0) /* bb >= cc, cases 1a to 1d */ + { + if (cc < half) + cc += half; +- else ++ else /* since bb >= cc >= half, bb - half >= 0 */ + bb -= half; ++ /* now we have bb > cc - half: we have to add one ulp if bb > cc, ++ and truncate if bb < cc */ ++ if (cmp_low > 0) ++ cmp_low = 2; + } + } + + #ifdef DEBUG +- printf (" bb=%lu cc=%lu down=%d is_exact=%d\n", +- (unsigned long) bb, (unsigned long) cc, down, is_exact); ++ printf ("k=%u bb=%lu cc=%lu cmp_low=%d\n", k, ++ (unsigned long) bb, (unsigned long) cc, cmp_low); + #endif +- if (bb < cc) ++ if (cmp_low < 0) /* low(b) - low(c) < 0: either truncate or subtract ++ one ulp */ + { + if (rnd_mode == MPFR_RNDZ) +- goto sub_one_ulp; ++ goto sub_one_ulp; /* set inexact=-1 */ + else if (rnd_mode != MPFR_RNDN) /* round away */ + { + inexact = 1; + goto truncate; + } +- else /* round to nearest: special case here since for sh=k=0 +- bb = bb0 - MPFR_LIMB_HIGHBIT */ ++ else /* round to nearest */ + { +- if (is_exact && sh == 0) +- { +- /* For k=0 we can't decide exactness since it may depend +- from low order bits. +- For k=1, the first low limbs matched: low(b)-low(c)<0. */ +- if (k) +- { +- inexact = 1; +- goto truncate; +- } +- } +- else if (down && sh == 0) +- goto sub_one_ulp; +- else +- { +- inexact = (is_exact) ? 1 : -1; ++ /* If cmp_low < 0 and bb > cc, then -0.5 ulp < low(b)-low(c) < 0, ++ whatever the value of sh. ++ If sh>0, then cmp_low < 0 implies that the initial neglected ++ sh bits were 0 (otherwise cmp_low=2 initially), thus the ++ weight of the new bits is less than 0.5 ulp too. ++ If k > 0 (and sh=0) this means that either the first neglected ++ limbs bb and cc were equal (thus cmp_low was 0 for k=0), ++ or we had bb - cc = -0.5 ulp or 0.5 ulp. ++ The last case is not possible here since we would have ++ cmp_low > 0 which is sticky. ++ In the first case (where we have cmp_low = -1), we truncate, ++ whereas in the 2nd case we have cmp_low = -2 and we subtract ++ one ulp. ++ */ ++ if (bb > cc || sh > 0 || cmp_low == -1) ++ { /* -0.5 ulp < low(b)-low(c) < 0, ++ bb > cc corresponds to cases 1e and 1f1 ++ sh > 0 corresponds to cases 3c and 3b3 ++ cmp_low = -1 corresponds to case 1d3 (also 3b3) */ ++ inexact = 1; + goto truncate; + } ++ else if (bb < cc) /* here sh = 0 and low(b)-low(c) < -0.5 ulp, ++ this corresponds to cases 1g and 1f3 */ ++ goto sub_one_ulp; ++ /* the only case where we can't conclude is sh=0 and bb=cc, ++ i.e., we have low(b) - low(c) = -0.5 ulp (up to now), thus ++ we don't know if we must truncate or subtract one ulp. ++ Note: for sh=0 we can't have low(b) - low(c) = -0.5 ulp up to ++ now, since low(b) - low(c) > 1/2^sh */ + } + } +- else if (bb > cc) ++ else if (cmp_low > 0) /* 0 < low(b) - low(c): either truncate or ++ add one ulp */ + { + if (rnd_mode == MPFR_RNDZ) + { +@@ -437,34 +500,70 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mp + goto add_one_ulp; + else /* round to nearest */ + { +- if (is_exact) ++ if (bb > cc) + { +- inexact = -1; +- goto truncate; ++ /* if sh=0, then bb>cc means that low(b)-low(c) > 0.5 ulp, ++ and similarly when cmp_low=2 */ ++ if (cmp_low == 2) /* cases 1a, 1b1, 2a and 2b1 */ ++ goto add_one_ulp; ++ /* sh > 0 and cmp_low > 0: this implies that the sh initial ++ neglected bits were 0, and the remaining low(b)-low(c)>0, ++ but its weight is less than 0.5 ulp */ ++ else /* 0 < low(b) - low(c) < 0.5 ulp, this corresponds to ++ cases 3a, 1d1 and 3b1 */ ++ { ++ inexact = -1; ++ goto truncate; ++ } + } +- else if (down) ++ else if (bb < cc) /* 0 < low(b) - low(c) < 0.5 ulp, cases 1c, ++ 1b3, 2b3 and 2c */ + { +- inexact = 1; ++ inexact = -1; + goto truncate; + } +- else +- goto add_one_ulp; +- } +- } ++ /* the only case where we can't conclude is bb=cc, i.e., ++ low(b) - low(c) = 0.5 ulp (up to now), thus we don't know ++ if we must truncate or add one ulp. */ ++ } ++ } ++ /* after k=0, we cannot conclude in the following cases, we split them ++ according to the values of bb and cc for k=1: ++ 1b. sh=0 and cmp_low = 1 and bb-cc = half [around 0.5 ulp] ++ 1b1. bb > cc: add one ulp, inex = 1 ++ 1b2: bb = cc: cannot conclude ++ 1b3: bb < cc: truncate, inex = -1 ++ 1d. sh=0 and cmp_low = 0 and bb-cc = 0 [around 0] ++ 1d1: bb > cc: truncate, inex = -1 ++ 1d2: bb = cc: cannot conclude ++ 1d3: bb < cc: truncate, inex = +1 ++ 1f. sh=0 and cmp_low = -1 and bb-cc = -half [around -0.5 ulp] ++ 1f1: bb > cc: truncate, inex = +1 ++ 1f2: bb = cc: cannot conclude ++ 1f3: bb < cc: sub one ulp, inex = -1 ++ 2b. sh > 0 and cmp_low = 2 and bb=cc [around 0.5 ulp] ++ 2b1. bb > cc: add one ulp, inex = 1 ++ 2b2: bb = cc: cannot conclude ++ 2b3: bb < cc: truncate, inex = -1 ++ 3b. sh > 0 and cmp_low = 0 [around 0] ++ 3b1. bb > cc: truncate, inex = -1 ++ 3b2: bb = cc: cannot conclude ++ 3b3: bb < cc: truncate, inex = +1 ++ */ + } + +- if ((rnd_mode == MPFR_RNDN) && !is_exact) ++ if ((rnd_mode == MPFR_RNDN) && cmp_low != 0) + { + /* even rounding rule */ + if ((ap[0] >> sh) & 1) + { +- if (down) ++ if (cmp_low < 0) + goto sub_one_ulp; + else + goto add_one_ulp; + } + else +- inexact = (down) ? 1 : -1; ++ inexact = (cmp_low > 0) ? -1 : 1; + } + else + inexact = 0; +diff -rupN mpfr-3.0.0.orig/tests/Makefile.in mpfr-3.0.0/tests/Makefile.in +--- mpfr-3.0.0.orig/tests/Makefile.in 2010-11-17 14:50:50.267052500 -0700 ++++ mpfr-3.0.0/tests/Makefile.in 2010-06-10 05:00:52.000000000 -0600 +@@ -960,6 +960,7 @@ am__tty_colors = \ + red=; grn=; lgn=; blu=; std= + DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) + ACLOCAL = @ACLOCAL@ ++ALLOCA = @ALLOCA@ + AMTAR = @AMTAR@ + AR = @AR@ + AS = @AS@ +diff -rupN mpfr-3.0.0.orig/tests/tcan_round.c mpfr-3.0.0/tests/tcan_round.c +--- mpfr-3.0.0.orig/tests/tcan_round.c 2010-11-17 14:50:50.414058700 -0700 ++++ mpfr-3.0.0/tests/tcan_round.c 2010-10-21 14:28:38.000000000 -0600 +@@ -41,7 +41,7 @@ check_round_p (void) + /* avoid mpn_random which leaks memory */ + for (i = 0; i < n; i++) + buf[i] = randlimb (); +- p = (mpfr_prec_t) randlimb() % ((n-1) * GMP_NUMB_BITS) + MPFR_PREC_MIN; ++ p = randlimb() % ((n-1) * GMP_NUMB_BITS) + MPFR_PREC_MIN; + err = p + randlimb () % GMP_NUMB_BITS; + r1 = mpfr_round_p (buf, n, err, p); + r2 = mpfr_can_round_raw (buf, n, MPFR_SIGN_POS, err, +diff -rupN mpfr-3.0.0.orig/tests/tcmp_ui.c mpfr-3.0.0/tests/tcmp_ui.c +--- mpfr-3.0.0.orig/tests/tcmp_ui.c 2010-11-17 14:50:50.421059100 -0700 ++++ mpfr-3.0.0/tests/tcmp_ui.c 2010-09-07 02:45:12.000000000 -0600 +@@ -88,6 +88,126 @@ check_nan (void) + mpfr_clear (x); + } + ++/* Since mpfr_cmp_ui and mpfr_cmp_si are also implemented by a macro ++ with __builtin_constant_p for GCC, check that side effects are ++ handled correctly. */ ++static void ++check_macros (void) ++{ ++ mpfr_t x; ++ int c; ++ ++ mpfr_init2 (x, 32); ++ ++ c = 0; ++ mpfr_set_ui (x, 17, MPFR_RNDN); ++ if (mpfr_cmp_ui (x, 17) != 0) ++ { ++ printf ("Error 1 on mpfr_cmp_ui(x,17) in check_macros\n"); ++ exit (1); ++ } ++ if (mpfr_cmp_ui (x, (c++, 17)) != 0) ++ { ++ printf ("Error 2 on mpfr_cmp_ui(x,17) in check_macros\n"); ++ exit (1); ++ } ++ if (c != 1) ++ { ++ printf ("Error 3 on mpfr_cmp_ui(x,17) in check_macros\n" ++ "(c = %d instead of 1)\n", c); ++ exit (1); ++ } ++ if (mpfr_cmp_si (x, 17) != 0) ++ { ++ printf ("Error 1 on mpfr_cmp_si(x,17) in check_macros\n"); ++ exit (1); ++ } ++ if (mpfr_cmp_si (x, (c++, 17)) != 0) ++ { ++ printf ("Error 2 on mpfr_cmp_si(x,17) in check_macros\n"); ++ exit (1); ++ } ++ if (c != 2) ++ { ++ printf ("Error 3 on mpfr_cmp_si(x,17) in check_macros\n" ++ "(c = %d instead of 2)\n", c); ++ exit (1); ++ } ++ ++ c = 0; ++ mpfr_set_ui (x, 0, MPFR_RNDN); ++ if (mpfr_cmp_ui (x, 0) != 0) ++ { ++ printf ("Error 1 on mpfr_cmp_ui(x,0) in check_macros\n"); ++ exit (1); ++ } ++ if (mpfr_cmp_ui (x, (c++, 0)) != 0) ++ { ++ printf ("Error 2 on mpfr_cmp_ui(x,0) in check_macros\n"); ++ exit (1); ++ } ++ if (c != 1) ++ { ++ printf ("Error 3 on mpfr_cmp_ui(x,0) in check_macros\n" ++ "(c = %d instead of 1)\n", c); ++ exit (1); ++ } ++ if (mpfr_cmp_si (x, 0) != 0) ++ { ++ printf ("Error 1 on mpfr_cmp_si(x,0) in check_macros\n"); ++ exit (1); ++ } ++ if (mpfr_cmp_si (x, (c++, 0)) != 0) ++ { ++ printf ("Error 2 on mpfr_cmp_si(x,0) in check_macros\n"); ++ exit (1); ++ } ++ if (c != 2) ++ { ++ printf ("Error 3 on mpfr_cmp_si(x,0) in check_macros\n" ++ "(c = %d instead of 2)\n", c); ++ exit (1); ++ } ++ ++ mpfr_clear (x); ++} ++ ++/* Bug in r7114 */ ++static void ++test_macros (void) ++{ ++ mpfr_t x[3]; ++ mpfr_ptr p; ++ ++ mpfr_inits (x[0], x[1], x[2], (mpfr_ptr) 0); ++ mpfr_set_ui (x[0], 0, MPFR_RNDN); ++ p = x[0]; ++ if (mpfr_cmp_ui (p++, 0) != 0) ++ { ++ printf ("Error in mpfr_cmp_ui macro: result should be 0.\n"); ++ exit (1); ++ } ++ if (p != x[1]) ++ { ++ printf ("Error in mpfr_cmp_ui macro: p - x[0] = %d (expecting 1)\n", ++ (int) (p - x[0])); ++ exit (1); ++ } ++ p = x[0]; ++ if (mpfr_cmp_si (p++, 0) != 0) ++ { ++ printf ("Error in mpfr_cmp_si macro: result should be 0.\n"); ++ exit (1); ++ } ++ if (p != x[1]) ++ { ++ printf ("Error in mpfr_cmp_si macro: p - x[0] = %d (expecting 1)\n", ++ (int) (p - x[0])); ++ exit (1); ++ } ++ mpfr_clears (x[0], x[1], x[2], (mpfr_ptr) 0); ++} ++ + int + main (void) + { +@@ -216,6 +336,8 @@ main (void) + mpfr_clear (x); + + check_nan (); ++ check_macros (); ++ test_macros (); + + tests_end_mpfr (); + return 0; +diff -rupN mpfr-3.0.0.orig/tests/tfma.c mpfr-3.0.0/tests/tfma.c +--- mpfr-3.0.0.orig/tests/tfma.c 2010-11-17 14:50:50.701075100 -0700 ++++ mpfr-3.0.0/tests/tfma.c 2010-10-21 14:59:32.000000000 -0600 +@@ -337,6 +337,94 @@ test_underflow2 (void) + mpfr_clears (x, y, z, r, (mpfr_ptr) 0); + } + ++static void ++bug20101018 (void) ++{ ++ mpfr_t x, y, z, t, u; ++ int i; ++ ++ mpfr_init2 (x, 64); ++ mpfr_init2 (y, 64); ++ mpfr_init2 (z, 64); ++ mpfr_init2 (t, 64); ++ mpfr_init2 (u, 64); ++ ++ mpfr_set_str (x, "0xf.fffffffffffffffp-14766", 16, MPFR_RNDN); ++ mpfr_set_str (y, "-0xf.fffffffffffffffp+317", 16, MPFR_RNDN); ++ mpfr_set_str (z, "0x8.3ffffffffffe3ffp-14443", 16, MPFR_RNDN); ++ mpfr_set_str (t, "0x8.7ffffffffffc7ffp-14444", 16, MPFR_RNDN); ++ i = mpfr_fma (u, x, y, z, MPFR_RNDN); ++ if (mpfr_cmp (u, t) != 0) ++ { ++ printf ("Wrong result in bug20101018 (a)\n"); ++ printf ("Expected "); ++ mpfr_out_str (stdout, 16, 0, t, MPFR_RNDN); ++ printf ("\nGot "); ++ mpfr_out_str (stdout, 16, 0, u, MPFR_RNDN); ++ printf ("\n"); ++ exit (1); ++ } ++ if (i <= 0) ++ { ++ printf ("Wrong ternary value in bug20101018 (a)\n"); ++ printf ("Expected > 0\n"); ++ printf ("Got %d\n", i); ++ exit (1); ++ } ++ ++ mpfr_set_str (x, "-0xf.fffffffffffffffp-11420", 16, MPFR_RNDN); ++ mpfr_set_str (y, "0xf.fffffffffffffffp+9863", 16, MPFR_RNDN); ++ mpfr_set_str (z, "0x8.fffff80ffffffffp-1551", 16, MPFR_RNDN); ++ mpfr_set_str (t, "0x9.fffff01ffffffffp-1552", 16, MPFR_RNDN); ++ i = mpfr_fma (u, x, y, z, MPFR_RNDN); ++ if (mpfr_cmp (u, t) != 0) ++ { ++ printf ("Wrong result in bug20101018 (b)\n"); ++ printf ("Expected "); ++ mpfr_out_str (stdout, 16, 0, t, MPFR_RNDN); ++ printf ("\nGot "); ++ mpfr_out_str (stdout, 16, 0, u, MPFR_RNDN); ++ printf ("\n"); ++ exit (1); ++ } ++ if (i <= 0) ++ { ++ printf ("Wrong ternary value in bug20101018 (b)\n"); ++ printf ("Expected > 0\n"); ++ printf ("Got %d\n", i); ++ exit (1); ++ } ++ ++ mpfr_set_str (x, "0xf.fffffffffffffffp-2125", 16, MPFR_RNDN); ++ mpfr_set_str (y, "-0xf.fffffffffffffffp-6000", 16, MPFR_RNDN); ++ mpfr_set_str (z, "0x8p-8119", 16, MPFR_RNDN); ++ mpfr_set_str (t, "0x8.000000000000001p-8120", 16, MPFR_RNDN); ++ i = mpfr_fma (u, x, y, z, MPFR_RNDN); ++ if (mpfr_cmp (u, t) != 0) ++ { ++ printf ("Wrong result in bug20101018 (c)\n"); ++ printf ("Expected "); ++ mpfr_out_str (stdout, 16, 0, t, MPFR_RNDN); ++ printf ("\nGot "); ++ mpfr_out_str (stdout, 16, 0, u, MPFR_RNDN); ++ printf ("\n"); ++ exit (1); ++ } ++ if (i <= 0) ++ { ++ printf ("Wrong ternary value in bug20101018 (c)\n"); ++ printf ("Expected > 0\n"); ++ printf ("Got %d\n", i); ++ exit (1); ++ } ++ ++ mpfr_clear (x); ++ mpfr_clear (y); ++ mpfr_clear (z); ++ mpfr_clear (t); ++ mpfr_clear (u); ++} ++ + int + main (int argc, char *argv[]) + { +@@ -345,6 +433,8 @@ main (int argc, char *argv[]) + + tests_start_mpfr (); + ++ bug20101018 (); ++ + mpfr_init (x); + mpfr_init (s); + mpfr_init (y); +diff -rupN mpfr-3.0.0.orig/tests/tgamma.c mpfr-3.0.0/tests/tgamma.c +--- mpfr-3.0.0.orig/tests/tgamma.c 2010-11-17 14:50:50.706075400 -0700 ++++ mpfr-3.0.0/tests/tgamma.c 2010-07-09 18:11:46.000000000 -0600 +@@ -461,6 +461,20 @@ test20071231 (void) + mpfr_clear (x); + } + ++/* bug found by Stathis, only occurs on 32-bit machines */ ++static void ++test20100709 (void) ++{ ++ mpfr_t x; ++ int inex; ++ ++ mpfr_init2 (x, 100); ++ mpfr_set_str (x, "-4.6308260837372266e+07", 10, MPFR_RNDN); ++ inex = mpfr_gamma (x, x, MPFR_RNDN); ++ MPFR_ASSERTN(MPFR_IS_ZERO(x) && MPFR_IS_NEG(x) && inex > 0); ++ mpfr_clear (x); ++} ++ + int + main (int argc, char *argv[]) + { +@@ -471,6 +485,7 @@ main (int argc, char *argv[]) + test_generic (2, 100, 2); + gamma_integer (); + test20071231 (); ++ test20100709 (); + + data_check ("data/gamma", mpfr_gamma, "mpfr_gamma"); + +diff -rupN mpfr-3.0.0.orig/tests/tout_str.c mpfr-3.0.0/tests/tout_str.c +--- mpfr-3.0.0.orig/tests/tout_str.c 2010-11-17 14:50:50.753078100 -0700 ++++ mpfr-3.0.0/tests/tout_str.c 2010-06-23 05:03:12.000000000 -0600 +@@ -46,22 +46,54 @@ static void + special (void) + { + mpfr_t x; ++ unsigned int n; + + mpfr_init (x); + + mpfr_set_nan (x); +- mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ n = mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ if (n != 5) ++ { ++ printf ("Error: mpfr_out_str (file, 10, 0, NaN, MPFR_RNDN) wrote %u " ++ "characters instead of 5.\n", n); ++ exit (1); ++ } + + mpfr_set_inf (x, 1); +- mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ n = mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ if (n != 5) ++ { ++ printf ("Error: mpfr_out_str (file, 10, 0, +Inf, MPFR_RNDN) wrote %u " ++ "characters instead of 5.\n", n); ++ exit (1); ++ } + + mpfr_set_inf (x, -1); +- mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ n = mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ if (n != 6) ++ { ++ printf ("Error: mpfr_out_str (file, 10, 0, -Inf, MPFR_RNDN) wrote %u " ++ "characters instead of 6.\n", n); ++ exit (1); ++ } + + mpfr_set_ui (x, 0, MPFR_RNDN); +- mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ n = mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ if (n != 1) ++ { ++ printf ("Error: mpfr_out_str (file, 10, 0, +0, MPFR_RNDN) wrote %u " ++ "characters instead of 1.\n", n); ++ exit (1); ++ } ++ + mpfr_neg (x, x, MPFR_RNDN); +- mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ n = mpfr_out_str (fout, 10, 0, x, MPFR_RNDN); ++ if (n != 2) ++ { ++ printf ("Error: mpfr_out_str (file, 10, 0, -0, MPFR_RNDN) wrote %u " ++ "characters instead of 2.\n", n); ++ exit (1); ++ } + + mpfr_clear (x); + } +diff -rupN mpfr-3.0.0.orig/tests/tset_ld.c mpfr-3.0.0/tests/tset_ld.c +--- mpfr-3.0.0.orig/tests/tset_ld.c 2010-11-17 14:50:50.773079300 -0700 ++++ mpfr-3.0.0/tests/tset_ld.c 2010-10-21 15:18:26.000000000 -0600 +@@ -147,12 +147,39 @@ static void + test_fixed_bugs (void) + { + mpfr_t x; +- long double d; ++ long double l, m; + + /* bug found by Steve Kargl (2009-03-14) */ + mpfr_init2 (x, 64); + mpfr_set_ui_2exp (x, 1, -16447, MPFR_RNDN); +- d = mpfr_get_ld (x, MPFR_RNDN); /* an assertion failed in init2.c:50 */ ++ mpfr_get_ld (x, MPFR_RNDN); /* an assertion failed in init2.c:50 */ ++ ++ /* bug reported by Jakub Jelinek (2010-10-17) ++ https://gforge.inria.fr/tracker/?func=detail&aid=11300 */ ++ mpfr_set_prec (x, MPFR_LDBL_MANT_DIG); ++ /* l = 0x1.23456789abcdef0123456789abcdp-914L; */ ++ l = 8.215640181713713164092636634579e-276; ++ mpfr_set_ld (x, l, MPFR_RNDN); ++ m = mpfr_get_ld (x, MPFR_RNDN); ++ if (m != l) ++ { ++ printf ("Error in get_ld o set_ld for l=%Le\n", l); ++ printf ("Got m=%Le instead of l\n", m); ++ exit (1); ++ } ++ ++ /* another similar test which failed with extended double precision and the ++ generic code for mpfr_set_ld */ ++ /* l = 0x1.23456789abcdef0123456789abcdp-968L; */ ++ l = 4.560596445887084662336528403703e-292; ++ mpfr_set_ld (x, l, MPFR_RNDN); ++ m = mpfr_get_ld (x, MPFR_RNDN); ++ if (m != l) ++ { ++ printf ("Error in get_ld o set_ld for l=%Le\n", l); ++ printf ("Got m=%Le instead of l\n", m); ++ exit (1); ++ } + + mpfr_clear (x); + } +diff -rupN mpfr-3.0.0.orig/tests/tsub.c mpfr-3.0.0/tests/tsub.c +--- mpfr-3.0.0.orig/tests/tsub.c 2010-11-17 14:50:50.791080300 -0700 ++++ mpfr-3.0.0/tests/tsub.c 2010-10-21 14:59:32.000000000 -0600 +@@ -201,6 +201,8 @@ check_diverse (void) + if (mpfr_cmp (z, x)) + { + printf ("Error in mpfr_sub (2)\n"); ++ printf ("Expected "); mpfr_print_binary (x); puts (""); ++ printf ("Got "); mpfr_print_binary (z); puts (""); + exit (1); + } + mpfr_set_str_binary (x, "1.1110111011110001110111011111111111101000011001011100101100101101"); +@@ -478,6 +480,156 @@ check_inexact (void) + mpfr_clear (u); + } + ++/* Bug found by Jakub Jelinek ++ * http://bugzilla.redhat.com/643657 ++ * https://gforge.inria.fr/tracker/index.php?func=detail&aid=11301 ++ * The consequence can be either an assertion failure (i = 2 in the ++ * testcase below, in debug mode) or an incorrectly rounded value. ++ */ ++static void ++bug20101017 (void) ++{ ++ mpfr_t a, b, c; ++ int inex; ++ int i; ++ ++ mpfr_init2 (a, GMP_NUMB_BITS * 2); ++ mpfr_init2 (b, GMP_NUMB_BITS); ++ mpfr_init2 (c, GMP_NUMB_BITS); ++ ++ /* a = 2^(2N) + k.2^(2N-1) + 2^N and b = 1 ++ with N = GMP_NUMB_BITS and k = 0 or 1. ++ c = a - b should round to the same value as a. */ ++ ++ for (i = 2; i <= 3; i++) ++ { ++ mpfr_set_ui_2exp (a, i, GMP_NUMB_BITS - 1, MPFR_RNDN); ++ mpfr_add_ui (a, a, 1, MPFR_RNDN); ++ mpfr_mul_2ui (a, a, GMP_NUMB_BITS, MPFR_RNDN); ++ mpfr_set_ui (b, 1, MPFR_RNDN); ++ inex = mpfr_sub (c, a, b, MPFR_RNDN); ++ mpfr_set (b, a, MPFR_RNDN); ++ if (! mpfr_equal_p (c, b)) ++ { ++ printf ("Error in bug20101017 for i = %d.\n", i); ++ printf ("Expected "); ++ mpfr_out_str (stdout, 16, 0, b, MPFR_RNDN); ++ putchar ('\n'); ++ printf ("Got "); ++ mpfr_out_str (stdout, 16, 0, c, MPFR_RNDN); ++ putchar ('\n'); ++ exit (1); ++ } ++ if (inex >= 0) ++ { ++ printf ("Error in bug20101017 for i = %d: bad inex value.\n", i); ++ printf ("Expected negative, got %d.\n", inex); ++ exit (1); ++ } ++ } ++ ++ mpfr_set_prec (a, 64); ++ mpfr_set_prec (b, 129); ++ mpfr_set_prec (c, 2); ++ mpfr_set_str_binary (b, "0.100000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001E65"); ++ mpfr_set_str_binary (c, "0.10E1"); ++ inex = mpfr_sub (a, b, c, MPFR_RNDN); ++ if (mpfr_cmp_ui_2exp (a, 1, 64) != 0 || inex >= 0) ++ { ++ printf ("Error in mpfr_sub for b-c for b=2^64+1+2^(-64), c=1\n"); ++ printf ("Expected result 2^64 with inex < 0\n"); ++ printf ("Got "); mpfr_print_binary (a); ++ printf (" with inex=%d\n", inex); ++ exit (1); ++ } ++ ++ mpfr_clears (a, b, c, (mpfr_ptr) 0); ++} ++ ++/* hard test of rounding */ ++static void ++check_rounding (void) ++{ ++ mpfr_t a, b, c, res; ++ mpfr_prec_t p; ++ long k, l; ++ int i; ++ ++#define MAXKL (2 * GMP_NUMB_BITS) ++ for (p = MPFR_PREC_MIN; p <= GMP_NUMB_BITS; p++) ++ { ++ mpfr_init2 (a, p); ++ mpfr_init2 (res, p); ++ mpfr_init2 (b, p + 1 + MAXKL); ++ mpfr_init2 (c, MPFR_PREC_MIN); ++ ++ /* b = 2^p + 1 + 2^(-k), c = 2^(-l) */ ++ for (k = 0; k <= MAXKL; k++) ++ for (l = 0; l <= MAXKL; l++) ++ { ++ mpfr_set_ui_2exp (b, 1, p, MPFR_RNDN); ++ mpfr_add_ui (b, b, 1, MPFR_RNDN); ++ mpfr_mul_2ui (b, b, k, MPFR_RNDN); ++ mpfr_add_ui (b, b, 1, MPFR_RNDN); ++ mpfr_div_2ui (b, b, k, MPFR_RNDN); ++ mpfr_set_ui_2exp (c, 1, -l, MPFR_RNDN); ++ i = mpfr_sub (a, b, c, MPFR_RNDN); ++ /* b - c = 2^p + 1 + 2^(-k) - 2^(-l), should be rounded to ++ 2^p for l <= k, and 2^p+2 for l < k */ ++ if (l <= k) ++ { ++ if (mpfr_cmp_ui_2exp (a, 1, p) != 0) ++ { ++ printf ("Wrong result in check_rounding\n"); ++ printf ("p=%lu k=%ld l=%ld\n", p, k, l); ++ printf ("b="); mpfr_print_binary (b); puts (""); ++ printf ("c="); mpfr_print_binary (c); puts (""); ++ printf ("Expected 2^%lu\n", p); ++ printf ("Got "); mpfr_print_binary (a); puts (""); ++ exit (1); ++ } ++ if (i >= 0) ++ { ++ printf ("Wrong ternary value in check_rounding\n"); ++ printf ("p=%lu k=%ld l=%ld\n", p, k, l); ++ printf ("b="); mpfr_print_binary (b); puts (""); ++ printf ("c="); mpfr_print_binary (c); puts (""); ++ printf ("a="); mpfr_print_binary (a); puts (""); ++ printf ("Expected < 0, got %d\n", i); ++ exit (1); ++ } ++ } ++ else /* l < k */ ++ { ++ mpfr_set_ui_2exp (res, 1, p, MPFR_RNDN); ++ mpfr_add_ui (res, res, 2, MPFR_RNDN); ++ if (mpfr_cmp (a, res) != 0) ++ { ++ printf ("Wrong result in check_rounding\n"); ++ printf ("b="); mpfr_print_binary (b); puts (""); ++ printf ("c="); mpfr_print_binary (c); puts (""); ++ printf ("Expected "); mpfr_print_binary (res); puts (""); ++ printf ("Got "); mpfr_print_binary (a); puts (""); ++ exit (1); ++ } ++ if (i <= 0) ++ { ++ printf ("Wrong ternary value in check_rounding\n"); ++ printf ("b="); mpfr_print_binary (b); puts (""); ++ printf ("c="); mpfr_print_binary (c); puts (""); ++ printf ("Expected > 0, got %d\n", i); ++ exit (1); ++ } ++ } ++ } ++ ++ mpfr_clear (a); ++ mpfr_clear (res); ++ mpfr_clear (b); ++ mpfr_clear (c); ++ } ++} ++ + #define TEST_FUNCTION test_sub + #define TWO_ARGS + #define RAND_FUNCTION(x) mpfr_random2(x, MPFR_LIMB_SIZE (x), randlimb () % 100, RANDS) +@@ -491,6 +643,8 @@ main (void) + + tests_start_mpfr (); + ++ bug20101017 (); ++ check_rounding (); + check_diverse (); + check_inexact (); + bug_ddefour (); +diff -rupN mpfr-3.0.0.orig/version.c mpfr-3.0.0/version.c +--- mpfr-3.0.0.orig/version.c 2010-11-17 14:50:50.822082100 -0700 ++++ mpfr-3.0.0/version.c 2010-11-09 08:15:07.000000000 -0700 +@@ -25,5 +25,5 @@ http://www.gnu.org/licenses/ or write to + const char * + mpfr_get_version (void) + { +- return "3.0.0"; ++ return "3.0.0-p8"; + }