1/* Test file for mpfr_init2, mpfr_inits, mpfr_inits2 and mpfr_clears. 2 3Copyright 2003, 2006-2023 Free Software Foundation, Inc. 4Contributed by the AriC and Caramba projects, INRIA. 5 6This file is part of the GNU MPFR Library. 7 8The GNU MPFR Library is free software; you can redistribute it and/or modify 9it under the terms of the GNU Lesser General Public License as published by 10the Free Software Foundation; either version 3 of the License, or (at your 11option) any later version. 12 13The GNU MPFR Library is distributed in the hope that it will be useful, but 14WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 16License for more details. 17 18You should have received a copy of the GNU Lesser General Public License 19along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see 20https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 2151 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23#include "mpfr-test.h" 24 25int 26main (void) 27{ 28 mpfr_t a, b, c; 29 long large_prec; 30 31 tests_start_mpfr (); 32 33 mpfr_inits (a, b, c, (mpfr_ptr) 0); 34 mpfr_clears (a, b, c, (mpfr_ptr) 0); 35 mpfr_inits2 (200, a, b, c, (mpfr_ptr) 0); 36 mpfr_clears (a, b, c, (mpfr_ptr) 0); 37 38 /* test for precision 2^31-1, see 39 https://gforge.inria.fr/tracker/index.php?func=detail&aid=13918 */ 40 large_prec = 2147483647; 41 if (getenv ("MPFR_CHECK_LARGEMEM") != NULL) 42 { 43 size_t min_memory_limit; 44 45 /* We assume that the precision won't be increased internally. */ 46 if (large_prec > MPFR_PREC_MAX) 47 large_prec = MPFR_PREC_MAX; 48 49 /* Increase tests_memory_limit if need be in order to avoid an 50 obvious failure due to insufficient memory, by choosing a bit 51 more than the memory used for the variables a and b. Note 52 that such an increase is necessary, but is not guaranteed to 53 be sufficient in all cases (e.g. with logging activated). */ 54 min_memory_limit = 2 * (large_prec / MPFR_BYTES_PER_MP_LIMB) + 65536; 55 if (tests_memory_limit > 0 && tests_memory_limit < min_memory_limit) 56 tests_memory_limit = min_memory_limit; 57 58 mpfr_inits2 (large_prec, a, b, (mpfr_ptr) 0); 59 mpfr_set_ui (a, 17, MPFR_RNDN); 60 mpfr_set (b, a, MPFR_RNDN); 61 if (mpfr_get_ui (a, MPFR_RNDN) != 17) 62 { 63 printf ("Error in mpfr_init2 with precision 2^31-1\n"); 64 exit (1); 65 } 66 mpfr_clears (a, b, (mpfr_ptr) 0); 67 } 68 69 tests_end_mpfr (); 70 71 return 0; 72} 73