1 /* Test mpf_set. 2 3 Copyright 2004 Free Software Foundation, Inc. 4 5 This file is part of the GNU MP Library. 6 7 The GNU MP Library is free software; you can redistribute it and/or modify 8 it under the terms of the GNU Lesser General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or (at your 10 option) any later version. 11 12 The GNU MP Library is distributed in the hope that it will be useful, but 13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15 License for more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */ 19 20 #include <stdio.h> 21 #include <stdlib.h> 22 #include "gmp.h" 23 #include "gmp-impl.h" 24 #include "tests.h" 25 26 void 27 check_reuse (void) 28 { 29 /* Try mpf_set(f,f) when f is bigger than prec. In the past this had 30 resulted in an MPN_COPY with invalid operand overlap. */ 31 mpf_t f; 32 mp_size_t limbs = 20; 33 unsigned long bits = limbs * GMP_NUMB_BITS; 34 mpf_init2 (f, bits); 35 refmpf_fill (f, limbs, GMP_NUMB_MAX); 36 mpf_set_prec_raw (f, bits / 2); 37 mpf_set (f, f); 38 MPF_CHECK_FORMAT (f); 39 mpf_set_prec_raw (f, bits); 40 mpf_clear (f); 41 } 42 43 int 44 main (void) 45 { 46 tests_start (); 47 48 check_reuse (); 49 50 tests_end (); 51 exit (0); 52 } 53