github.com/aergoio/aergo@v1.3.1/libtool/src/gmp-6.1.2/mpn/generic/sec_aors_1.c (about)

     1  /* mpn_sec_add_1, mpn_sec_sub_1
     2  
     3     Contributed to the GNU project by Niels Möller
     4  
     5  Copyright 2013, 2014 Free Software Foundation, Inc.
     6  
     7  This file is part of the GNU MP Library.
     8  
     9  The GNU MP Library is free software; you can redistribute it and/or modify
    10  it under the terms of either:
    11  
    12    * the GNU Lesser General Public License as published by the Free
    13      Software Foundation; either version 3 of the License, or (at your
    14      option) any later version.
    15  
    16  or
    17  
    18    * the GNU General Public License as published by the Free Software
    19      Foundation; either version 2 of the License, or (at your option) any
    20      later version.
    21  
    22  or both in parallel, as here.
    23  
    24  The GNU MP Library is distributed in the hope that it will be useful, but
    25  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    26  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    27  for more details.
    28  
    29  You should have received copies of the GNU General Public License and the
    30  GNU Lesser General Public License along with the GNU MP Library.  If not,
    31  see https://www.gnu.org/licenses/.  */
    32  
    33  #include "gmp.h"
    34  #include "gmp-impl.h"
    35  
    36  #if OPERATION_sec_add_1
    37  #define FNAME mpn_sec_add_1
    38  #define FNAME_itch mpn_sec_add_1_itch
    39  #define OP_N mpn_add_n
    40  #endif
    41  #if OPERATION_sec_sub_1
    42  #define FNAME mpn_sec_sub_1
    43  #define FNAME_itch mpn_sec_sub_1_itch
    44  #define OP_N mpn_sub_n
    45  #endif
    46  
    47  /* It's annoying to that we need scratch space */
    48  mp_size_t
    49  FNAME_itch (mp_size_t n)
    50  {
    51    return n;
    52  }
    53  
    54  mp_limb_t
    55  FNAME (mp_ptr rp, mp_srcptr ap, mp_size_t n, mp_limb_t b, mp_ptr scratch)
    56  {
    57    scratch[0] = b;
    58    MPN_ZERO (scratch + 1, n-1);
    59    return OP_N (rp, ap, scratch, n);
    60  }