LCOV - code coverage report
Current view: top level - lib/mpi - mpi-cmp.c (source / functions) Hit Total Coverage
Test: gcov_data_raspi2_real_modules_combined.info Lines: 17 23 73.9 %
Date: 2020-09-30 20:25:40 Functions: 2 2 100.0 %
Branches: 10 36 27.8 %

           Branch data     Line data    Source code
       1                 :            : /* mpi-cmp.c  -  MPI functions
       2                 :            :  * Copyright (C) 1998, 1999 Free Software Foundation, Inc.
       3                 :            :  *
       4                 :            :  * This file is part of GnuPG.
       5                 :            :  *
       6                 :            :  * GnuPG is free software; you can redistribute it and/or modify
       7                 :            :  * it under the terms of the GNU General Public License as published by
       8                 :            :  * the Free Software Foundation; either version 2 of the License, or
       9                 :            :  * (at your option) any later version.
      10                 :            :  *
      11                 :            :  * GnuPG is distributed in the hope that it will be useful,
      12                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14                 :            :  * GNU General Public License for more details.
      15                 :            :  *
      16                 :            :  * You should have received a copy of the GNU General Public License
      17                 :            :  * along with this program; if not, write to the Free Software
      18                 :            :  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
      19                 :            :  */
      20                 :            : 
      21                 :            : #include "mpi-internal.h"
      22                 :            : 
      23                 :        828 : int mpi_cmp_ui(MPI u, unsigned long v)
      24                 :            : {
      25                 :            :         mpi_limb_t limb = v;
      26                 :            : 
      27                 :        828 :         mpi_normalize(u);
      28   [ -  +  #  # ]:        828 :         if (!u->nlimbs && !limb)
      29                 :            :                 return 0;
      30         [ +  - ]:        828 :         if (u->sign)
      31                 :            :                 return -1;
      32         [ -  + ]:        828 :         if (u->nlimbs > 1)
      33                 :            :                 return 1;
      34                 :            : 
      35         [ #  # ]:          0 :         if (u->d[0] == limb)
      36                 :            :                 return 0;
      37         [ #  # ]:          0 :         else if (u->d[0] > limb)
      38                 :            :                 return 1;
      39                 :            :         else
      40                 :          0 :                 return -1;
      41                 :            : }
      42                 :            : EXPORT_SYMBOL_GPL(mpi_cmp_ui);
      43                 :            : 
      44                 :        828 : int mpi_cmp(MPI u, MPI v)
      45                 :            : {
      46                 :            :         mpi_size_t usize, vsize;
      47                 :            :         int cmp;
      48                 :            : 
      49                 :        828 :         mpi_normalize(u);
      50                 :        828 :         mpi_normalize(v);
      51                 :        828 :         usize = u->nlimbs;
      52                 :        828 :         vsize = v->nlimbs;
      53   [ +  -  +  - ]:        828 :         if (!u->sign && v->sign)
      54                 :            :                 return 1;
      55   [ -  +  #  # ]:        828 :         if (u->sign && !v->sign)
      56                 :            :                 return -1;
      57   [ -  +  #  #  :        828 :         if (usize != vsize && !u->sign && !v->sign)
                   #  # ]
      58                 :          0 :                 return usize - vsize;
      59   [ -  +  #  #  :        828 :         if (usize != vsize && u->sign && v->sign)
                   #  # ]
      60                 :          0 :                 return vsize - usize;
      61         [ +  - ]:        828 :         if (!usize)
      62                 :            :                 return 0;
      63                 :        828 :         cmp = mpihelp_cmp(u->d, v->d, usize);
      64         [ -  + ]:        828 :         if (u->sign)
      65                 :          0 :                 return -cmp;
      66                 :            :         return cmp;
      67                 :            : }
      68                 :            : EXPORT_SYMBOL_GPL(mpi_cmp);

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