version.c revision 1.1.1.6
1/* 2 * Output various information about GMP and MPFR. 3 */ 4 5/* 6Copyright 2010-2023 Free Software Foundation, Inc. 7Contributed by the AriC and Caramba projects, INRIA. 8 9This file is part of the GNU MPFR Library. 10 11The GNU MPFR Library is free software; you can redistribute it and/or modify 12it under the terms of the GNU Lesser General Public License as published by 13the Free Software Foundation; either version 3 of the License, or (at your 14option) any later version. 15 16The GNU MPFR Library is distributed in the hope that it will be useful, but 17WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 18or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 19License for more details. 20 21You should have received a copy of the GNU Lesser General Public License 22along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 23https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 2451 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 */ 38static void failure_test (void) 39{ 40 mpfr_t x; 41 42 mpfr_init2 (x, 128); 43 mpfr_set_str (x, "17", 0, MPFR_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 49static void patches (void) 50{ 51 const char *p = mpfr_get_patches (); 52 printf ("MPFR patches: %s\n", p[0] ? p : "[none]"); 53} 54 55#define STRINGIZE(S) #S 56#define MAKE_STR(S) STRINGIZE(S) 57 58#define SIGNED_STR(V) ((V) < 0 ? "signed" : "unsigned") 59#define SIGNED(I) SIGNED_STR((I) - (I) - 1) 60 61int main (void) 62{ 63 unsigned long c; 64 mp_limb_t t[4]; 65 int i; 66 67 /* Casts are for C++ compilers. */ 68 for (i = 0; i < (int) (sizeof (t) / sizeof (mp_limb_t)); i++) 69 t[i] = (mp_limb_t) -1; 70 71 /**************** Information about the C implementation ****************/ 72 73 /* This is useful, as this can affect the behavior of MPFR. */ 74 75#define COMP "Compiler: " 76#ifdef __INTEL_COMPILER 77# ifdef __VERSION__ 78# define ICCV " [" __VERSION__ "]" 79# else 80# define ICCV "" 81# endif 82 printf (COMP "ICC %d.%d.%d" ICCV "\n", __INTEL_COMPILER / 100, 83 __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE); 84#elif defined(__TINYC__) 85 /* The format of __TINYC__ is not described, but libtcc.c defines it with 86 * sprintf(buffer, "%d", a*10000 + b*100 + c); 87 * tcc_define_symbol(s, "__TINYC__", buffer); 88 */ 89 printf (COMP "TCC %d.%d.%d\n", (int) (__TINYC__ / 10000), 90 (int) ((__TINYC__ / 100) % 100), (int) (__TINYC__ % 100)); 91#elif (defined(__GNUC__) || defined(__clang__)) && defined(__VERSION__) 92# ifdef __clang__ 93# define COMP2 COMP 94# else 95# define COMP2 COMP "GCC " 96# endif 97 printf (COMP2 "%s\n", __VERSION__); 98#endif 99 100#if defined(__STDC__) || defined(__STDC_VERSION__) 101 printf ("C/C++: __STDC__ = " 102#if defined(__STDC__) 103 MAKE_STR(__STDC__) 104#else 105 "undef" 106#endif 107 ", __STDC_VERSION__ = " 108#if defined(__STDC_VERSION__) 109 MAKE_STR(__STDC_VERSION__) 110#else 111 "undef" 112#endif 113#if defined(__cplusplus) 114 ", C++" 115#endif 116 "\n"); 117#endif 118 119#if defined(__GNUC__) 120 printf ("GNU compatibility: __GNUC__ = " MAKE_STR(__GNUC__) 121 ", __GNUC_MINOR__ = " 122#if defined(__GNUC_MINOR__) 123 MAKE_STR(__GNUC_MINOR__) 124#else 125 "undef" 126#endif 127 "\n"); 128#endif 129 130#if defined(__ICC) || defined(__INTEL_COMPILER) 131 printf ("Intel compiler: __ICC = " 132#if defined(__ICC) 133 MAKE_STR(__ICC) 134#else 135 "undef" 136#endif 137 ", __INTEL_COMPILER = " 138#if defined(__INTEL_COMPILER) 139 MAKE_STR(__INTEL_COMPILER) 140#else 141 "undef" 142#endif 143 "\n"); 144#endif 145 146#if defined(_WIN32) || defined(_MSC_VER) 147 printf ("MS Windows: _WIN32 = " 148#if defined(_WIN32) 149 MAKE_STR(_WIN32) 150#else 151 "undef" 152#endif 153 ", _MSC_VER = " 154#if defined(_MSC_VER) 155 MAKE_STR(_MSC_VER) 156#else 157 "undef" 158#endif 159 "\n"); 160#endif 161 162#if defined(__GLIBC__) 163 printf ("GNU C library: __GLIBC__ = " MAKE_STR(__GLIBC__) 164 ", __GLIBC_MINOR__ = " 165#if defined(__GLIBC_MINOR__) 166 MAKE_STR(__GLIBC_MINOR__) 167#else 168 "undef" 169#endif 170 "\n"); 171#endif 172 173 printf ("\n"); 174 175 /************************************************************************/ 176 177#if defined(__MPIR_VERSION) 178 printf ("MPIR .... Library: %-12s Header: %d.%d.%d\n", 179 mpir_version, __MPIR_VERSION, __MPIR_VERSION_MINOR, 180 __MPIR_VERSION_PATCHLEVEL); 181#else 182 printf ("GMP ..... Library: %-12s Header: %d.%d.%d\n", 183 gmp_version, __GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, 184 __GNU_MP_VERSION_PATCHLEVEL); 185#endif 186 187 printf ("MPFR .... Library: %-12s Header: %s (based on %d.%d.%d)\n", 188 mpfr_get_version (), MPFR_VERSION_STRING, MPFR_VERSION_MAJOR, 189 MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL); 190 191 printf ("MPFR features: TLS = %s", mpfr_buildopt_tls_p () ? "yes" : "no"); 192#if MPFR_VERSION_MAJOR >= 4 193 printf (", float128 = %s", mpfr_buildopt_float128_p () ? "yes" : "no"); 194#endif 195 printf (", decimal = %s", mpfr_buildopt_decimal_p () ? "yes" : "no"); 196#if MPFR_VERSION_MAJOR > 3 || MPFR_VERSION_MINOR >= 1 197 printf (", GMP internals = %s\nMPFR tuning: %s", 198 mpfr_buildopt_gmpinternals_p () ? "yes" : "no", 199 mpfr_buildopt_tune_case ()); 200#endif /* 3.1 */ 201 printf ("\n"); 202 203 patches (); 204 205 printf ("\n"); 206#ifdef __GMP_CC 207 printf ("__GMP_CC = \"%s\"\n", __GMP_CC); 208#endif 209#ifdef __GMP_CFLAGS 210 printf ("__GMP_CFLAGS = \"%s\"\n", __GMP_CFLAGS); 211#endif 212 printf ("GMP_LIMB_BITS = %d\n", (int) GMP_LIMB_BITS); 213 printf ("GMP_NAIL_BITS = %d\n", (int) GMP_NAIL_BITS); 214 printf ("GMP_NUMB_BITS = %d\n", (int) GMP_NUMB_BITS); 215 printf ("mp_bits_per_limb = %d\n", (int) mp_bits_per_limb); 216 printf ("sizeof(mp_limb_t) = %d\n", (int) sizeof(mp_limb_t)); 217 if (mp_bits_per_limb != GMP_LIMB_BITS) 218 printf ("Warning! mp_bits_per_limb != GMP_LIMB_BITS\n"); 219 if (GMP_LIMB_BITS != sizeof(mp_limb_t) * CHAR_BIT) 220 printf ("Warning! GMP_LIMB_BITS != sizeof(mp_limb_t) * CHAR_BIT\n"); 221 222 c = mpn_popcount (t, 1); 223 printf ("The GMP library expects %lu bits in a mp_limb_t.\n", c); 224 if (c != GMP_LIMB_BITS) 225 printf ("Warning! This is different from GMP_LIMB_BITS!\n" 226 "Different ABI caused by a GMP library upgrade?\n"); 227 228 printf ("\n"); 229 printf ("sizeof(mpfr_prec_t) = %d (%s type)\n", (int) sizeof(mpfr_prec_t), 230 SIGNED_STR((mpfr_prec_t) -1)); 231 printf ("sizeof(mpfr_exp_t) = %d (%s type)\n", (int) sizeof(mpfr_exp_t), 232 SIGNED_STR((mpfr_exp_t) -1)); 233#ifdef _MPFR_PREC_FORMAT 234 printf ("_MPFR_PREC_FORMAT = %d\n", (int) _MPFR_PREC_FORMAT); 235#endif 236 /* Note: "long" is sufficient for all current _MPFR_PREC_FORMAT values 237 (1, 2, 3). Thus we do not need to depend on ISO C99 or later. */ 238 printf ("MPFR_PREC_MIN = %ld (%s)\n", (long) MPFR_PREC_MIN, 239 SIGNED (MPFR_PREC_MIN)); 240 printf ("MPFR_PREC_MAX = %ld (%s)\n", (long) MPFR_PREC_MAX, 241 SIGNED (MPFR_PREC_MAX)); 242#ifdef _MPFR_EXP_FORMAT 243 printf ("_MPFR_EXP_FORMAT = %d\n", (int) _MPFR_EXP_FORMAT); 244#endif 245 printf ("sizeof(mpfr_t) = %d\n", (int) sizeof(mpfr_t)); 246 printf ("sizeof(mpfr_ptr) = %d\n", (int) sizeof(mpfr_ptr)); 247 failure_test (); 248 249 mpfr_free_cache (); 250 return 0; 251} 252