| Austin Schuh | bb1338c | 2024-06-15 19:31:16 -0700 | [diff] [blame^] | 1 | /* mpz_cmp(u,v) -- Compare U, V. Return positive, zero, or negative |
| 2 | based on if U > V, U == V, or U < V. |
| 3 | |
| 4 | Copyright 1991, 1993, 1994, 1996, 2001, 2002, 2011 Free Software Foundation, |
| 5 | Inc. |
| 6 | |
| 7 | This file is part of the GNU MP Library. |
| 8 | |
| 9 | The GNU MP Library is free software; you can redistribute it and/or modify |
| 10 | it under the terms of either: |
| 11 | |
| 12 | * the GNU Lesser General Public License as published by the Free |
| 13 | Software Foundation; either version 3 of the License, or (at your |
| 14 | option) any later version. |
| 15 | |
| 16 | or |
| 17 | |
| 18 | * the GNU General Public License as published by the Free Software |
| 19 | Foundation; either version 2 of the License, or (at your option) any |
| 20 | later version. |
| 21 | |
| 22 | or both in parallel, as here. |
| 23 | |
| 24 | The GNU MP Library is distributed in the hope that it will be useful, but |
| 25 | WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 26 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 27 | for more details. |
| 28 | |
| 29 | You should have received copies of the GNU General Public License and the |
| 30 | GNU Lesser General Public License along with the GNU MP Library. If not, |
| 31 | see https://www.gnu.org/licenses/. */ |
| 32 | |
| 33 | #include "gmp-impl.h" |
| 34 | |
| 35 | int |
| 36 | mpz_cmp (mpz_srcptr u, mpz_srcptr v) __GMP_NOTHROW |
| 37 | { |
| 38 | mp_size_t usize, vsize, dsize, asize; |
| 39 | mp_srcptr up, vp; |
| 40 | int cmp; |
| 41 | |
| 42 | usize = SIZ(u); |
| 43 | vsize = SIZ(v); |
| 44 | dsize = usize - vsize; |
| 45 | if (dsize != 0) |
| 46 | return dsize; |
| 47 | |
| 48 | asize = ABS (usize); |
| 49 | up = PTR(u); |
| 50 | vp = PTR(v); |
| 51 | MPN_CMP (cmp, up, vp, asize); |
| 52 | return (usize >= 0 ? cmp : -cmp); |
| 53 | } |