| Austin Schuh | bb1338c | 2024-06-15 19:31:16 -0700 | [diff] [blame] | 1 | /* mpq_equal(u,v) -- Compare U, V. Return non-zero if they are equal, zero |
| 2 | if they are non-equal. |
| 3 | |
| 4 | Copyright 1996, 2001, 2002, 2018 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of the GNU MP Library. |
| 7 | |
| 8 | The GNU MP Library is free software; you can redistribute it and/or modify |
| 9 | it under the terms of either: |
| 10 | |
| 11 | * the GNU Lesser General Public License as published by the Free |
| 12 | Software Foundation; either version 3 of the License, or (at your |
| 13 | option) any later version. |
| 14 | |
| 15 | or |
| 16 | |
| 17 | * the GNU General Public License as published by the Free Software |
| 18 | Foundation; either version 2 of the License, or (at your option) any |
| 19 | later version. |
| 20 | |
| 21 | or both in parallel, as here. |
| 22 | |
| 23 | The GNU MP Library is distributed in the hope that it will be useful, but |
| 24 | WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 25 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 26 | for more details. |
| 27 | |
| 28 | You should have received copies of the GNU General Public License and the |
| 29 | GNU Lesser General Public License along with the GNU MP Library. If not, |
| 30 | see https://www.gnu.org/licenses/. */ |
| 31 | |
| 32 | #include "gmp-impl.h" |
| 33 | |
| 34 | int |
| 35 | mpq_equal (mpq_srcptr op1, mpq_srcptr op2) __GMP_NOTHROW |
| 36 | { |
| 37 | mp_size_t num1_size, num2_size, den1_size, den2_size, i; |
| 38 | mp_srcptr num1_ptr, num2_ptr, den1_ptr, den2_ptr; |
| 39 | |
| 40 | /* need fully canonical for correct results */ |
| 41 | ASSERT_MPQ_CANONICAL (op1); |
| 42 | ASSERT_MPQ_CANONICAL (op2); |
| 43 | |
| 44 | num1_size = SIZ(NUM(op1)); |
| 45 | num2_size = SIZ(NUM(op2)); |
| 46 | if (num1_size != num2_size) |
| 47 | return 0; |
| 48 | |
| 49 | den1_size = SIZ(DEN(op1)); |
| 50 | den2_size = SIZ(DEN(op2)); |
| 51 | if (den1_size != den2_size) |
| 52 | return 0; |
| 53 | |
| 54 | num1_ptr = PTR(NUM(op1)); |
| 55 | num2_ptr = PTR(NUM(op2)); |
| 56 | num1_size = ABS (num1_size); |
| 57 | for (i = 0; i < num1_size; i++) |
| 58 | if (num1_ptr[i] != num2_ptr[i]) |
| 59 | return 0; |
| 60 | |
| 61 | den1_ptr = PTR(DEN(op1)); |
| 62 | den2_ptr = PTR(DEN(op2)); |
| 63 | for (i = 0; i < den1_size; i++) |
| 64 | if (den1_ptr[i] != den2_ptr[i]) |
| 65 | return 0; |
| 66 | |
| 67 | return 1; |
| 68 | } |