Coverage Report

Created: 2025-11-16 06:46

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/gmp/mpz/aors.h
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Source
1
/* mpz_add, mpz_sub -- add or subtract integers.
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Copyright 1991, 1993, 1994, 1996, 2000, 2001, 2011, 2012, 2020 Free
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Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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11
  * the GNU Lesser General Public License as published by the Free
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    Software Foundation; either version 3 of the License, or (at your
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    option) any later version.
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or
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  * the GNU General Public License as published by the Free Software
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    Foundation; either version 2 of the License, or (at your option) any
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    later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library.  If not,
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see https://www.gnu.org/licenses/.  */
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#include "gmp-impl.h"
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#ifdef OPERATION_add
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#define FUNCTION     mpz_add
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#define VARIATION
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#endif
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#ifdef OPERATION_sub
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#define FUNCTION     mpz_sub
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7.72k
#define VARIATION    -
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#endif
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#ifndef FUNCTION
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Error, need OPERATION_add or OPERATION_sub
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#endif
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void
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FUNCTION (mpz_ptr w, mpz_srcptr u, mpz_srcptr v)
51
40.0k
{
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40.0k
  mp_srcptr up, vp;
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40.0k
  mp_ptr wp;
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40.0k
  mp_size_t usize, vsize, wsize;
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40.0k
  mp_size_t abs_usize;
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40.0k
  mp_size_t abs_vsize;
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40.0k
  usize = SIZ(u);
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40.0k
  vsize = VARIATION SIZ(v);
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40.0k
  abs_usize = ABS (usize);
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40.0k
  abs_vsize = ABS (vsize);
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63
40.0k
  if (abs_usize < abs_vsize)
64
9.18k
    {
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      /* Swap U and V. */
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9.18k
      MPZ_SRCPTR_SWAP (u, v);
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9.18k
      MP_SIZE_T_SWAP (usize, vsize);
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9.18k
      MP_SIZE_T_SWAP (abs_usize, abs_vsize);
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9.18k
    }
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  /* True: ABS_USIZE >= ABS_VSIZE.  */
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  /* If not space for w (and possible carry), increase space.  */
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40.0k
  wsize = abs_usize + 1;
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40.0k
  wp = MPZ_REALLOC (w, wsize);
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  /* These must be after realloc (u or v may be the same as w).  */
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40.0k
  up = PTR(u);
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40.0k
  vp = PTR(v);
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40.0k
  if ((usize ^ vsize) < 0)
82
9.58k
    {
83
      /* U and V have different sign.  Need to compare them to determine
84
   which operand to subtract from which.  */
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86
      /* This test is right since ABS_USIZE >= ABS_VSIZE.  */
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9.58k
      if (abs_usize != abs_vsize)
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4.44k
  {
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4.44k
    mpn_sub (wp, up, abs_usize, vp, abs_vsize);
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4.44k
    wsize = abs_usize;
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4.44k
    MPN_NORMALIZE_NOT_ZERO (wp, wsize);
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4.44k
    if (usize < 0)
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3.93k
      wsize = -wsize;
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4.44k
  }
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5.13k
      else
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5.13k
  {
97
5.13k
    int cmp = mpn_cmp (up, vp, abs_usize);
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5.13k
    if (cmp < 0)
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5.13k
      {
100
5.13k
        mpn_sub_n (wp, vp, up, abs_usize);
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5.13k
        wsize = abs_usize;
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5.13k
        MPN_NORMALIZE_NOT_ZERO (wp, wsize);
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5.13k
        if (usize >= 0)
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0
    wsize = -wsize;
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5.13k
      }
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0
    else if (cmp > 0)
107
0
      {
108
0
        mpn_sub_n (wp, up, vp, abs_usize);
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0
        wsize = abs_usize;
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0
        MPN_NORMALIZE_NOT_ZERO (wp, wsize);
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0
        if (usize < 0)
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0
    wsize = -wsize;
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0
      }
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0
    else
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0
      wsize = 0;
116
5.13k
  }
117
9.58k
    }
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30.4k
  else
119
30.4k
    {
120
      /* U and V have same sign.  Add them.  */
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30.4k
      mp_limb_t cy_limb = mpn_add (wp, up, abs_usize, vp, abs_vsize);
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30.4k
      wp[abs_usize] = cy_limb;
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30.4k
      wsize = abs_usize + cy_limb;
124
30.4k
      if (usize < 0)
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0
  wsize = -wsize;
126
30.4k
    }
127
128
40.0k
  SIZ(w) = wsize;
129
40.0k
}
__gmpz_add
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Count
Source
51
32.3k
{
52
32.3k
  mp_srcptr up, vp;
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32.3k
  mp_ptr wp;
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32.3k
  mp_size_t usize, vsize, wsize;
55
32.3k
  mp_size_t abs_usize;
56
32.3k
  mp_size_t abs_vsize;
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32.3k
  usize = SIZ(u);
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32.3k
  vsize = VARIATION SIZ(v);
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32.3k
  abs_usize = ABS (usize);
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32.3k
  abs_vsize = ABS (vsize);
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32.3k
  if (abs_usize < abs_vsize)
64
1.52k
    {
65
      /* Swap U and V. */
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1.52k
      MPZ_SRCPTR_SWAP (u, v);
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1.52k
      MP_SIZE_T_SWAP (usize, vsize);
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1.52k
      MP_SIZE_T_SWAP (abs_usize, abs_vsize);
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1.52k
    }
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  /* True: ABS_USIZE >= ABS_VSIZE.  */
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  /* If not space for w (and possible carry), increase space.  */
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32.3k
  wsize = abs_usize + 1;
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32.3k
  wp = MPZ_REALLOC (w, wsize);
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  /* These must be after realloc (u or v may be the same as w).  */
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32.3k
  up = PTR(u);
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32.3k
  vp = PTR(v);
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32.3k
  if ((usize ^ vsize) < 0)
82
5.64k
    {
83
      /* U and V have different sign.  Need to compare them to determine
84
   which operand to subtract from which.  */
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86
      /* This test is right since ABS_USIZE >= ABS_VSIZE.  */
87
5.64k
      if (abs_usize != abs_vsize)
88
510
  {
89
510
    mpn_sub (wp, up, abs_usize, vp, abs_vsize);
90
510
    wsize = abs_usize;
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510
    MPN_NORMALIZE_NOT_ZERO (wp, wsize);
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510
    if (usize < 0)
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0
      wsize = -wsize;
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510
  }
95
5.13k
      else
96
5.13k
  {
97
5.13k
    int cmp = mpn_cmp (up, vp, abs_usize);
98
5.13k
    if (cmp < 0)
99
5.13k
      {
100
5.13k
        mpn_sub_n (wp, vp, up, abs_usize);
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5.13k
        wsize = abs_usize;
102
5.13k
        MPN_NORMALIZE_NOT_ZERO (wp, wsize);
103
5.13k
        if (usize >= 0)
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0
    wsize = -wsize;
105
5.13k
      }
106
0
    else if (cmp > 0)
107
0
      {
108
0
        mpn_sub_n (wp, up, vp, abs_usize);
109
0
        wsize = abs_usize;
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0
        MPN_NORMALIZE_NOT_ZERO (wp, wsize);
111
0
        if (usize < 0)
112
0
    wsize = -wsize;
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0
      }
114
0
    else
115
0
      wsize = 0;
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5.13k
  }
117
5.64k
    }
118
26.6k
  else
119
26.6k
    {
120
      /* U and V have same sign.  Add them.  */
121
26.6k
      mp_limb_t cy_limb = mpn_add (wp, up, abs_usize, vp, abs_vsize);
122
26.6k
      wp[abs_usize] = cy_limb;
123
26.6k
      wsize = abs_usize + cy_limb;
124
26.6k
      if (usize < 0)
125
0
  wsize = -wsize;
126
26.6k
    }
127
128
32.3k
  SIZ(w) = wsize;
129
32.3k
}
__gmpz_sub
Line
Count
Source
51
7.72k
{
52
7.72k
  mp_srcptr up, vp;
53
7.72k
  mp_ptr wp;
54
7.72k
  mp_size_t usize, vsize, wsize;
55
7.72k
  mp_size_t abs_usize;
56
7.72k
  mp_size_t abs_vsize;
57
58
7.72k
  usize = SIZ(u);
59
7.72k
  vsize = VARIATION SIZ(v);
60
7.72k
  abs_usize = ABS (usize);
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7.72k
  abs_vsize = ABS (vsize);
62
63
7.72k
  if (abs_usize < abs_vsize)
64
7.66k
    {
65
      /* Swap U and V. */
66
7.66k
      MPZ_SRCPTR_SWAP (u, v);
67
7.66k
      MP_SIZE_T_SWAP (usize, vsize);
68
7.66k
      MP_SIZE_T_SWAP (abs_usize, abs_vsize);
69
7.66k
    }
70
71
  /* True: ABS_USIZE >= ABS_VSIZE.  */
72
73
  /* If not space for w (and possible carry), increase space.  */
74
7.72k
  wsize = abs_usize + 1;
75
7.72k
  wp = MPZ_REALLOC (w, wsize);
76
77
  /* These must be after realloc (u or v may be the same as w).  */
78
7.72k
  up = PTR(u);
79
7.72k
  vp = PTR(v);
80
81
7.72k
  if ((usize ^ vsize) < 0)
82
3.93k
    {
83
      /* U and V have different sign.  Need to compare them to determine
84
   which operand to subtract from which.  */
85
86
      /* This test is right since ABS_USIZE >= ABS_VSIZE.  */
87
3.93k
      if (abs_usize != abs_vsize)
88
3.93k
  {
89
3.93k
    mpn_sub (wp, up, abs_usize, vp, abs_vsize);
90
3.93k
    wsize = abs_usize;
91
3.93k
    MPN_NORMALIZE_NOT_ZERO (wp, wsize);
92
3.93k
    if (usize < 0)
93
3.93k
      wsize = -wsize;
94
3.93k
  }
95
0
      else
96
0
  {
97
0
    int cmp = mpn_cmp (up, vp, abs_usize);
98
0
    if (cmp < 0)
99
0
      {
100
0
        mpn_sub_n (wp, vp, up, abs_usize);
101
0
        wsize = abs_usize;
102
0
        MPN_NORMALIZE_NOT_ZERO (wp, wsize);
103
0
        if (usize >= 0)
104
0
    wsize = -wsize;
105
0
      }
106
0
    else if (cmp > 0)
107
0
      {
108
0
        mpn_sub_n (wp, up, vp, abs_usize);
109
0
        wsize = abs_usize;
110
0
        MPN_NORMALIZE_NOT_ZERO (wp, wsize);
111
0
        if (usize < 0)
112
0
    wsize = -wsize;
113
0
      }
114
0
    else
115
0
      wsize = 0;
116
0
  }
117
3.93k
    }
118
3.78k
  else
119
3.78k
    {
120
      /* U and V have same sign.  Add them.  */
121
3.78k
      mp_limb_t cy_limb = mpn_add (wp, up, abs_usize, vp, abs_vsize);
122
3.78k
      wp[abs_usize] = cy_limb;
123
3.78k
      wsize = abs_usize + cy_limb;
124
3.78k
      if (usize < 0)
125
0
  wsize = -wsize;
126
3.78k
    }
127
128
7.72k
  SIZ(w) = wsize;
129
7.72k
}