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Annotation of OpenXM_contrib/gmp/mpz/perfsqr.c, Revision 1.1.1.1

1.1       maekawa     1: /* mpz_perfect_square_p(arg) -- Return non-zero if ARG is a perfect square,
                      2:    zero otherwise.
                      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: #include "gmp.h"
                     24: #include "gmp-impl.h"
                     25:
                     26: int
                     27: #if __STDC__
                     28: mpz_perfect_square_p (mpz_srcptr a)
                     29: #else
                     30: mpz_perfect_square_p (a)
                     31:      mpz_srcptr a;
                     32: #endif
                     33: {
                     34:   mp_size_t asize = a->_mp_size;
                     35:
                     36:   /* No negative numbers are perfect squares.  */
                     37:   if (asize < 0)
                     38:     return 0;
                     39:
                     40:   return mpn_perfect_square_p (a->_mp_d, asize);
                     41: }