1 /* 2 * Output various information about GMP and MPFR. 3 */ 4 5 /* 6 Copyright 2010, 2011, 2012 Free Software Foundation, Inc. 7 Contributed by the AriC and Caramel projects, INRIA. 8 9 This file is part of the GNU MPFR Library. 10 11 The GNU MPFR Library is free software; you can redistribute it and/or modify 12 it under the terms of the GNU Lesser General Public License as published by 13 the Free Software Foundation; either version 3 of the License, or (at your 14 option) any later version. 15 16 The GNU MPFR Library is distributed in the hope that it will be useful, but 17 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 18 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 19 License for more details. 20 21 You should have received a copy of the GNU Lesser General Public License 22 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 23 http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 24 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. 25 */ 26 27 #include <stdio.h> 28 #include <limits.h> 29 #include <gmp.h> 30 #include <mpfr.h> 31 32 /* The following failure can occur if GMP has been rebuilt with 33 * a different ABI, e.g. 34 * 1. GMP built with ABI=mode32. 35 * 2. MPFR built against this GMP version. 36 * 3. GMP rebuilt with ABI=32. 37 */ 38 static void failure_test (void) 39 { 40 mpfr_t x; 41 42 mpfr_init2 (x, 128); 43 mpfr_set_str (x, "17", 0, GMP_RNDN); 44 if (mpfr_cmp_ui (x, 17) != 0) 45 printf ("\nFailure in mpfr_set_str! Probably an unmatched ABI!\n"); 46 mpfr_clear (x); 47 } 48 49 int main (void) 50 { 51 unsigned long c; 52 mp_limb_t t[4] = { -1, -1, -1, -1 }; 53 54 #if defined(__cplusplus) 55 printf ("A C++ compiler is used.\n"); 56 #endif 57 58 printf ("GMP ..... Library: %-12s Header: %d.%d.%d\n", 59 gmp_version, __GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, 60 __GNU_MP_VERSION_PATCHLEVEL); 61 62 printf ("MPFR .... Library: %-12s Header: %s (based on %d.%d.%d)\n", 63 mpfr_get_version (), MPFR_VERSION_STRING, MPFR_VERSION_MAJOR, 64 MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL); 65 66 #if MPFR_VERSION_MAJOR >= 3 67 printf ("MPFR features: TLS = %s, decimal = %s", 68 mpfr_buildopt_tls_p () ? "yes" : "no", 69 mpfr_buildopt_decimal_p () ? "yes" : "no"); 70 # if MPFR_VERSION_MAJOR > 3 || MPFR_VERSION_MINOR >= 1 71 printf (", GMP internals = %s\nMPFR tuning: %s", 72 mpfr_buildopt_gmpinternals_p () ? "yes" : "no", 73 mpfr_buildopt_tune_case ()); 74 # endif 75 printf ("\n"); 76 #endif 77 78 printf ("MPFR patches: %s\n\n", mpfr_get_patches ()); 79 80 #ifdef __GMP_CC 81 printf ("__GMP_CC = \"%s\"\n", __GMP_CC); 82 #endif 83 #ifdef __GMP_CFLAGS 84 printf ("__GMP_CFLAGS = \"%s\"\n", __GMP_CFLAGS); 85 #endif 86 printf ("GMP_LIMB_BITS = %d\n", (int) GMP_LIMB_BITS); 87 printf ("GMP_NAIL_BITS = %d\n", (int) GMP_NAIL_BITS); 88 printf ("GMP_NUMB_BITS = %d\n", (int) GMP_NUMB_BITS); 89 printf ("mp_bits_per_limb = %d\n", (int) mp_bits_per_limb); 90 printf ("sizeof(mp_limb_t) = %d\n", (int) sizeof(mp_limb_t)); 91 if (mp_bits_per_limb != GMP_LIMB_BITS) 92 printf ("Warning! mp_bits_per_limb != GMP_LIMB_BITS\n"); 93 if (GMP_LIMB_BITS != sizeof(mp_limb_t) * CHAR_BIT) 94 printf ("Warning! GMP_LIMB_BITS != sizeof(mp_limb_t) * CHAR_BIT\n"); 95 96 c = mpn_popcount (t, 1); 97 printf ("The GMP library expects %lu bits in a mp_limb_t.\n", c); 98 if (c != GMP_LIMB_BITS) 99 printf ("Warning! This is different from GMP_LIMB_BITS!\n" 100 "Different ABI caused by a GMP library upgrade?\n"); 101 102 #if MPFR_VERSION_MAJOR >= 3 103 printf ("\n"); 104 printf ("sizeof(mpfr_prec_t) = %d\n", (int) sizeof(mpfr_prec_t)); 105 printf ("sizeof(mpfr_exp_t) = %d\n", (int) sizeof(mpfr_exp_t)); 106 #endif 107 108 failure_test (); 109 110 return 0; 111 } 112
