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/* mpz_cmp_si(u,v) -- Compare an integer U with a single-word int V.
Return positive, zero, or negative based on if U > V, U == V, or U < V.
Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The GNU MP Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU MP Library; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "gmp.h"
#include "gmp-impl.h"
int
#ifdef __STDC__
mpz_cmp_si (const MP_INT *u, signed long int v_digit)
#else
mpz_cmp_si (u, v_digit)
const MP_INT *u;
signed long int v_digit;
#endif
{
mp_size usize = u->size;
mp_size vsize;
mp_limb u_digit;
vsize = 0;
if (v_digit > 0)
vsize = 1;
else if (v_digit < 0)
{
vsize = -1;
v_digit = -v_digit;
}
if (usize != vsize)
return usize - vsize;
if (usize == 0)
return 0;
u_digit = u->d[0];
if (u_digit == v_digit)
return 0;
if ((u_digit < v_digit) == (usize < 0))
return 1;
else
return -1;
}
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