| /* Test file for __gmpfr_isqrt and __gmpfr_cuberoot internal functions. |
| |
| Copyright 2007, 2008, 2009 Free Software Foundation, Inc. |
| Contributed by the Arenaire and Cacao projects, INRIA. |
| |
| This file is part of the GNU MPFR Library. |
| |
| The GNU MPFR Library is free software; you can redistribute it and/or modify |
| it under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2.1 of the License, or (at your |
| option) any later version. |
| |
| The GNU MPFR Library is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
| License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with the GNU MPFR Library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "mpfr-test.h" |
| |
| static void |
| tst_isqrt (unsigned long n, unsigned long r) |
| { |
| unsigned long i; |
| |
| i = __gmpfr_isqrt (n); |
| if (i != r) |
| { |
| printf ("Error in __gmpfr_isqrt (%lu): got %lu instead of %lu\n", |
| n, i, r); |
| exit (1); |
| } |
| } |
| |
| static void |
| tst_icbrt (unsigned long n, unsigned long r) |
| { |
| unsigned long i; |
| |
| i = __gmpfr_cuberoot (n); |
| if (i != r) |
| { |
| printf ("Error in __gmpfr_cuberoot (%lu): got %lu instead of %lu\n", |
| n, i, r); |
| exit (1); |
| } |
| } |
| |
| int |
| main (void) |
| { |
| unsigned long c, i; |
| |
| tests_start_mpfr (); |
| |
| tst_isqrt (0, 0); |
| tst_isqrt (1, 1); |
| tst_isqrt (2, 1); |
| for (i = 2; i <= 65535; i++) |
| { |
| tst_isqrt (i * i - 1, i - 1); |
| tst_isqrt (i * i, i); |
| } |
| tst_isqrt (4294967295UL, 65535); |
| |
| tst_icbrt (0, 0); |
| tst_icbrt (1, 1); |
| tst_icbrt (2, 1); |
| tst_icbrt (3, 1); |
| for (i = 2; i <= 1625; i++) |
| { |
| c = i * i * i; |
| tst_icbrt (c - 4, i - 1); |
| tst_icbrt (c - 3, i - 1); |
| tst_icbrt (c - 2, i - 1); |
| tst_icbrt (c - 1, i - 1); |
| tst_icbrt (c, i); |
| tst_icbrt (c + 1, i); |
| tst_icbrt (c + 2, i); |
| tst_icbrt (c + 3, i); |
| tst_icbrt (c + 4, i); |
| } |
| tst_icbrt (4294967295UL, 1625); |
| |
| tests_end_mpfr (); |
| return 0; |
| } |