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Annotation of OpenXM_contrib/gmp/mpz/cmp.c, Revision 1.1

1.1     ! maekawa     1: /* mpz_cmp(u,v) -- Compare U, V.  Return postive, zero, or negative
        !             2:    based on if U > V, U == V, or U < V.
        !             3:
        !             4: Copyright (C) 1991, 1993, 1994, 1996 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 the GNU Library General Public License as published by
        !            10: the Free Software Foundation; either version 2 of the License, or (at your
        !            11: option) any later version.
        !            12:
        !            13: The GNU MP Library is distributed in the hope that it will be useful, but
        !            14: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            15: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
        !            16: License for more details.
        !            17:
        !            18: You should have received a copy of the GNU Library General Public License
        !            19: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            20: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            21: MA 02111-1307, USA. */
        !            22:
        !            23: #ifdef BERKELEY_MP
        !            24: #include "mp.h"
        !            25: #endif
        !            26: #include "gmp.h"
        !            27: #include "gmp-impl.h"
        !            28:
        !            29: #ifndef BERKELEY_MP
        !            30: int
        !            31: #if __STDC__
        !            32: mpz_cmp (mpz_srcptr u, mpz_srcptr v)
        !            33: #else
        !            34: mpz_cmp (u, v)
        !            35:      mpz_srcptr u;
        !            36:      mpz_srcptr v;
        !            37: #endif
        !            38: #else /* BERKELEY_MP */
        !            39: int
        !            40: #if __STDC__
        !            41: mcmp (mpz_srcptr u, mpz_srcptr v)
        !            42: #else
        !            43: mcmp (u, v)
        !            44:      mpz_srcptr u;
        !            45:      mpz_srcptr v;
        !            46: #endif
        !            47: #endif /* BERKELEY_MP */
        !            48: {
        !            49:   mp_size_t usize = u->_mp_size;
        !            50:   mp_size_t vsize = v->_mp_size;
        !            51:   mp_size_t size;
        !            52:   mp_srcptr up, vp;
        !            53:   int cmp;
        !            54:
        !            55:   if (usize != vsize)
        !            56:     return usize - vsize;
        !            57:
        !            58:   if (usize == 0)
        !            59:     return 0;
        !            60:
        !            61:   size = ABS (usize);
        !            62:
        !            63:   up = u->_mp_d;
        !            64:   vp = v->_mp_d;
        !            65:
        !            66:   cmp = mpn_cmp (up, vp, size);
        !            67:
        !            68:   if (cmp == 0)
        !            69:     return 0;
        !            70:
        !            71:   if ((cmp < 0) == (usize < 0))
        !            72:     return 1;
        !            73:   else
        !            74:     return -1;
        !            75: }