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Annotation of OpenXM_contrib/gmp/mpz/ui_pow_ui.c, Revision 1.1.1.3

1.1.1.3 ! ohara       1: /* mpz_ui_pow_ui -- ulong raised to ulong.
1.1       maekawa     2:
1.1.1.3 ! ohara       3: Copyright 2001, 2002 Free Software Foundation, Inc.
1.1       maekawa     4:
                      5: This file is part of the GNU MP Library.
                      6:
                      7: The GNU MP Library is free software; you can redistribute it and/or modify
1.1.1.2   maekawa     8: it under the terms of the GNU Lesser General Public License as published by
                      9: the Free Software Foundation; either version 2.1 of the License, or (at your
1.1       maekawa    10: option) any later version.
                     11:
                     12: The GNU MP Library is distributed in the hope that it will be useful, but
                     13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
1.1.1.2   maekawa    14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
1.1       maekawa    15: License for more details.
                     16:
1.1.1.2   maekawa    17: You should have received a copy of the GNU Lesser General Public License
1.1       maekawa    18: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     20: MA 02111-1307, USA. */
                     21:
                     22: #include "gmp.h"
                     23: #include "gmp-impl.h"
                     24:
1.1.1.2   maekawa    25:
1.1       maekawa    26: void
1.1.1.3 ! ohara      27: mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e)
1.1       maekawa    28: {
1.1.1.3 ! ohara      29: #if GMP_NAIL_BITS != 0
        !            30:   if (b > GMP_NUMB_MAX)
1.1       maekawa    31:     {
1.1.1.3 ! ohara      32:       mp_limb_t bb[2];
        !            33:       bb[0] = b & GMP_NUMB_MASK;
        !            34:       bb[1] = b >> GMP_NUMB_BITS;
        !            35:       mpz_n_pow_ui (r, bb, (mp_size_t) 2, e);
1.1       maekawa    36:     }
1.1.1.3 ! ohara      37:   else
        !            38: #endif
1.1       maekawa    39:     {
1.1.1.3 ! ohara      40: #ifdef _LONG_LONG_LIMB
        !            41:       /* i386 gcc 2.95.3 doesn't recognise blimb can be eliminated when
        !            42:         mp_limb_t is an unsigned long, so only use a separate blimb when
        !            43:         necessary.  */
        !            44:       mp_limb_t  blimb = b;
        !            45:       mpz_n_pow_ui (r, &blimb, (mp_size_t) (b != 0), e);
1.1.1.2   maekawa    46: #else
1.1.1.3 ! ohara      47:       mpz_n_pow_ui (r, &b,     (mp_size_t) (b != 0), e);
1.1.1.2   maekawa    48: #endif
1.1       maekawa    49:     }
                     50: }
1.1.1.3 ! ohara      51: