From a761cb21a861bb39c3e93633aa35c24d00ee6fdd Mon Sep 17 00:00:00 2001 From: vlefevre Date: Fri, 28 May 2010 09:52:37 +0000 Subject: Added examples/version.c (and updated Makefile.am). git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@6886 280ebfd0-de03-0410-8827-d642c229c3f4 --- examples/version.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 examples/version.c (limited to 'examples/version.c') diff --git a/examples/version.c b/examples/version.c new file mode 100644 index 000000000..2c285f671 --- /dev/null +++ b/examples/version.c @@ -0,0 +1,92 @@ +/* + * Output various information about GMP and MPFR. + */ + +/* +Copyright 2010 Free Software Foundation, Inc. +Contributed by the Arenaire and Cacao projects, INRIA. + +This file is part of the GNU MPFR Library. + +The GNU MPFR Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 3 of the License, or (at your +option) any later version. + +The GNU MPFR Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see +http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., +51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. +*/ + +#include +#include +#include +#include + +/* The following failure can occur if GMP has been rebuilt with + * a different ABI, e.g. + * 1. GMP built with ABI=mode32. + * 2. MPFR built against this GMP version. + * 3. GMP rebuilt with ABI=32. + */ +static void failure_test (void) +{ + mpfr_t x; + + mpfr_init2 (x, 128); + mpfr_set_str (x, "17", 0, GMP_RNDN); + if (mpfr_cmp_ui (x, 17) != 0) + printf ("\nFailure in mpfr_set_str! Probably an unmatched ABI!\n"); + mpfr_clear (x); +} + +int main (void) +{ + unsigned long c; + mp_limb_t t[4] = { -1, -1, -1, -1 }; + +#if defined(__cplusplus) + printf ("A C++ compiler is used.\n"); +#endif + + printf ("GMP ..... Library: %-12s Header: %d.%d.%d\n", + gmp_version, __GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, + __GNU_MP_VERSION_PATCHLEVEL); + + printf ("MPFR .... Library: %-12s Header: %s (based on %d.%d.%d)\n", + mpfr_get_version (), MPFR_VERSION_STRING, MPFR_VERSION_MAJOR, + MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL); + printf ("MPFR patches: %s\n\n", mpfr_get_patches ()); + +#ifdef __GMP_CC + printf ("__GMP_CC = \"%s\"\n", __GMP_CC); +#endif +#ifdef __GMP_CFLAGS + printf ("__GMP_CFLAGS = \"%s\"\n", __GMP_CFLAGS); +#endif + printf ("GMP_LIMB_BITS = %d\n", (int) GMP_LIMB_BITS); + printf ("GMP_NAIL_BITS = %d\n", (int) GMP_NAIL_BITS); + printf ("GMP_NUMB_BITS = %d\n", (int) GMP_NUMB_BITS); + printf ("mp_bits_per_limb = %d\n", (int) mp_bits_per_limb); + printf ("sizeof(mp_limb_t) = %d\n", (int) sizeof(mp_limb_t)); + if (mp_bits_per_limb != GMP_LIMB_BITS) + printf ("Warning! mp_bits_per_limb != GMP_LIMB_BITS\n"); + if (GMP_LIMB_BITS != sizeof(mp_limb_t) * CHAR_BIT) + printf ("Warning! GMP_LIMB_BITS != sizeof(mp_limb_t) * CHAR_BIT\n"); + + c = mpn_popcount (t, 1); + printf ("The GMP library expects %lu bits in a mp_limb_t.\n", c); + if (c != GMP_LIMB_BITS) + printf ("Warning! This is different from GMP_LIMB_BITS!\n" + "Different ABI caused by a GMP library upgrade?\n"); + + failure_test (); + + return 0; +} -- cgit v1.2.1