1/* Test file for mpfr_set_exp. 2 3Copyright 2004, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. 4Contributed by the Arenaire and Cacao 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 20http://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 <stdio.h> 24#include <stdlib.h> 25 26#include "mpfr-test.h" 27 28int 29main (int argc, char *argv[]) 30{ 31 mpfr_t x; 32 int ret; 33 mpfr_exp_t emin, emax; 34 35 tests_start_mpfr (); 36 37 emin = mpfr_get_emin (); 38 emax = mpfr_get_emax (); 39 40 mpfr_init (x); 41 42 mpfr_set_ui (x, 1, MPFR_RNDN); 43 ret = mpfr_set_exp (x, 2); 44 MPFR_ASSERTN(ret == 0 && mpfr_cmp_ui (x, 2) == 0); 45 46 set_emin (-1); 47 ret = mpfr_set_exp (x, -1); 48 MPFR_ASSERTN(ret == 0 && mpfr_cmp_ui_2exp (x, 1, -2) == 0); 49 50 set_emax (1); 51 ret = mpfr_set_exp (x, 1); 52 MPFR_ASSERTN(ret == 0 && mpfr_cmp_ui (x, 1) == 0); 53 54 ret = mpfr_set_exp (x, -2); 55 MPFR_ASSERTN(ret != 0 && mpfr_cmp_ui (x, 1) == 0); 56 57 ret = mpfr_set_exp (x, 2); 58 MPFR_ASSERTN(ret != 0 && mpfr_cmp_ui (x, 1) == 0); 59 60 mpfr_clear (x); 61 62 set_emin (emin); 63 set_emax (emax); 64 65 tests_end_mpfr (); 66 return 0; 67} 68