int
main (void)
{
double x, y;
mpfr_t xx, yy;
int c;
long i;
mpfr_prec_t p;
tests_start_mpfr ();
mpfr_init (xx);
mpfr_init (yy);
mpfr_set_prec (xx, 2);
mpfr_set_prec (yy, 2);
mpfr_set_str_binary(xx, "-0.10E0");
mpfr_set_str_binary(yy, "-0.10E0");
if ((mpfr_cmp) (xx, yy))
{
printf ("mpfr_cmp (xx, yy) returns non-zero for prec=2\n");
exit (1);
}
mpfr_set_prec (xx, 65);
mpfr_set_prec (yy, 65);
mpfr_set_str_binary(xx, "0.10011010101000110101010000000011001001001110001011101011111011101E623");
mpfr_set_str_binary(yy, "0.10011010101000110101010000000011001001001110001011101011111011100E623");
p = 0;
if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 64)
{
printf ("Error (1) in mpfr_cmp2\n");
exit (1);
}
mpfr_set_str_binary(xx, "0.10100010001110110111000010001000010011111101000100011101000011100");
mpfr_set_str_binary(yy, "0.10100010001110110111000010001000010011111101000100011101000011011");
p = 0;
if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 64)
{
printf ("Error (2) in mpfr_cmp2\n");
exit (1);
}
mpfr_set_prec (xx, 160); mpfr_set_prec (yy, 160);
mpfr_set_str_binary (xx, "0.1E1");
mpfr_set_str_binary (yy, "0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100");
p = 0;
if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 144)
{
printf ("Error (3) in mpfr_cmp2\n");
exit (1);
}
mpfr_set_prec (xx, 53);
mpfr_set_prec (yy, 200);
mpfr_set_ui (xx, 1, (mpfr_rnd_t) 0);
mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0);
if (mpfr_cmp (xx, yy) != 0)
{
printf ("Error in mpfr_cmp: 1.0 != 1.0\n");
exit (1);
}
mpfr_set_prec (yy, 31);
mpfr_set_str (xx, "1.0000000002", 10, (mpfr_rnd_t) 0);
mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0);
if (!(mpfr_cmp (xx,yy)>0))
{
printf ("Error in mpfr_cmp: not 1.0000000002 > 1.0\n");
exit (1);
}
mpfr_set_prec (yy, 53);
/* bug found by Gerardo Ballabio */
mpfr_set_ui(xx, 0, MPFR_RNDN);
mpfr_set_str (yy, "0.1", 10, MPFR_RNDN);
if ((c = mpfr_cmp (xx, yy)) >= 0)
{
printf ("Error in mpfr_cmp(0.0, 0.1), gives %d\n", c);
exit (1);
}
mpfr_set_inf (xx, 1);
mpfr_set_str (yy, "-23489745.0329", 10, MPFR_RNDN);
if ((c = mpfr_cmp (xx, yy)) <= 0)
{
printf ("Error in mpfr_cmp(Infp, 23489745.0329), gives %d\n", c);
exit (1);
}
mpfr_set_inf (xx, 1);
mpfr_set_inf (yy, -1);
if ((c = mpfr_cmp (xx, yy)) <= 0)
{
printf ("Error in mpfr_cmp(Infp, Infm), gives %d\n", c);
exit (1);
}
mpfr_set_inf (xx, -1);
mpfr_set_inf (yy, 1);
if ((c = mpfr_cmp (xx, yy)) >= 0)
{
printf ("Error in mpfr_cmp(Infm, Infp), gives %d\n", c);
exit (1);
}
mpfr_set_inf (xx, 1);
mpfr_set_inf (yy, 1);
if ((c = mpfr_cmp (xx, yy)) != 0)
{
printf ("Error in mpfr_cmp(Infp, Infp), gives %d\n", c);
exit (1);
}
mpfr_set_inf (xx, -1);
mpfr_set_inf (yy, -1);
if ((c = mpfr_cmp (xx, yy)) != 0)
{
printf ("Error in mpfr_cmp(Infm, Infm), gives %d\n", c);
exit (1);
}
mpfr_set_inf (xx, -1);
mpfr_set_str (yy, "2346.09234", 10, MPFR_RNDN);
if ((c = mpfr_cmp (xx, yy)) >= 0)
{
printf ("Error in mpfr_cmp(Infm, 2346.09234), gives %d\n", c);
exit (1);
}
mpfr_set_ui (xx, 0, MPFR_RNDN);
mpfr_set_ui (yy, 1, MPFR_RNDN);
if ((c = mpfr_cmp3 (xx, yy, 1)) >= 0)
{
printf ("Error: mpfr_cmp3 (0, 1, 1) gives %d instead of"
" a negative value\n", c);
exit (1);
}
if ((c = mpfr_cmp3 (xx, yy, -1)) <= 0)
{
printf ("Error: mpfr_cmp3 (0, 1, -1) gives %d instead of"
" a positive value\n", c);
exit (1);
}
for (i=0; i<500000; )
{
x = DBL_RAND ();
y = DBL_RAND ();
if (!Isnan(x) && !Isnan(y))
{
i++;
mpfr_set_d (xx, x, MPFR_RNDN);
mpfr_set_d (yy, y, MPFR_RNDN);
c = mpfr_cmp (xx,yy);
if ((c>0 && x<=y) || (c==0 && x!=y) || (c<0 && x>=y))
{
printf ("Error in mpfr_cmp with x=%1.20e, y=%1.20e"
" mpfr_cmp(x,y)=%d\n", x, y, c);
exit (1);
}
}
}
/* Check for NAN */
mpfr_set_nan (xx);
mpfr_clear_erangeflag ();
c = (mpfr_cmp) (xx, yy);
if (c != 0 || !mpfr_erangeflag_p () )
{
printf ("NAN error (1)\n");
exit (1);
}
mpfr_clear_erangeflag ();
c = (mpfr_cmp) (yy, xx);
if (c != 0 || !mpfr_erangeflag_p () )
{
printf ("NAN error (2)\n");
exit (1);
}
mpfr_clear_erangeflag ();
c = (mpfr_cmp) (xx, xx);
if (c != 0 || !mpfr_erangeflag_p () )
{
printf ("NAN error (3)\n");
exit (1);
}
mpfr_clear (xx);
mpfr_clear (yy);
tests_end_mpfr ();
return 0;
}
int
mpfr_cmp (mpfr_srcptr b, mpfr_srcptr c)
{
return mpfr_cmp3 (b, c, 1);
}
