Coverage Report

Created: 2024-11-21 07:03

/src/libgmp/mpz/cmp_ui.c
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/* mpz_cmp_ui.c -- Compare an mpz_t a with an mp_limb_t b.  Return positive,
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  zero, or negative based on if a > b, a == b, or a < b.
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Copyright 1991, 1993-1996, 2001, 2002 Free 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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  * 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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int
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_mpz_cmp_ui (mpz_srcptr u, unsigned long int v_digit) __GMP_NOTHROW
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{
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  mp_ptr up;
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  mp_size_t un;
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  mp_limb_t ul;
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  up = PTR(u);
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  un = SIZ(u);
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  if (un == 0)
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    return -(v_digit != 0);
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  if (un == 1)
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    {
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      ul = up[0];
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      if (ul > v_digit)
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  return 1;
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      if (ul < v_digit)
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  return -1;
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      return 0;
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    }
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#if GMP_NAIL_BITS != 0
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  if (v_digit > GMP_NUMB_MAX)
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    {
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      if (un == 2)
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  {
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    ul = up[0] + (up[1] << GMP_NUMB_BITS);
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    if ((up[1] >> GMP_NAIL_BITS) != 0)
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      return 1;
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    if (ul > v_digit)
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      return 1;
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    if (ul < v_digit)
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      return -1;
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    return 0;
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  }
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    }
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#endif
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  return un > 0 ? 1 : -1;
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}