1 /* mpz_ui_pow_ui -- ulong raised to ulong. 2 3 Copyright 2001, 2002 Free Software Foundation, Inc. 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 8 it under the terms of the GNU Lesser General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or (at your 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 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15 License for more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */ 19 20 #include "gmp.h" 21 #include "gmp-impl.h" 22 23 24 void 25 mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e) 26 { 27 #if GMP_NAIL_BITS != 0 28 if (b > GMP_NUMB_MAX) 29 { 30 mp_limb_t bb[2]; 31 bb[0] = b & GMP_NUMB_MASK; 32 bb[1] = b >> GMP_NUMB_BITS; 33 mpz_n_pow_ui (r, bb, (mp_size_t) 2, e); 34 } 35 else 36 #endif 37 { 38 #ifdef _LONG_LONG_LIMB 39 /* i386 gcc 2.95.3 doesn't recognise blimb can be eliminated when 40 mp_limb_t is an unsigned long, so only use a separate blimb when 41 necessary. */ 42 mp_limb_t blimb = b; 43 mpz_n_pow_ui (r, &blimb, (mp_size_t) (b != 0), e); 44 #else 45 mpz_n_pow_ui (r, &b, (mp_size_t) (b != 0), e); 46 #endif 47 } 48 } 49