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Diffstat (limited to 'contrib/libgmp/mpz/perfsqr.c')
-rw-r--r-- | contrib/libgmp/mpz/perfsqr.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/contrib/libgmp/mpz/perfsqr.c b/contrib/libgmp/mpz/perfsqr.c new file mode 100644 index 0000000..cdf1b5a --- /dev/null +++ b/contrib/libgmp/mpz/perfsqr.c @@ -0,0 +1,41 @@ +/* mpz_perfect_square_p(arg) -- Return non-zero if ARG is a perfect square, + zero otherwise. + +Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Library General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at your +option) any later version. + +The GNU MP 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 Library General Public +License for more details. + +You should have received a copy of the GNU Library General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include "gmp.h" +#include "gmp-impl.h" + +int +#if __STDC__ +mpz_perfect_square_p (mpz_srcptr a) +#else +mpz_perfect_square_p (a) + mpz_srcptr a; +#endif +{ + mp_size_t asize = a->_mp_size; + + /* No negative numbers are perfect squares. */ + if (asize < 0) + return 0; + + return mpn_perfect_square_p (a->_mp_d, asize); +} |