void
check_rand (void)
{
unsigned long min_prec = __GMPF_BITS_TO_PREC (1);
gmp_randstate_ptr rands = RANDS;
mpf_t got, u;
unsigned long prec, v;
int i;
/* The nails code in mpf_mul_ui currently isn't exact, so suppress these
tests for now. */
if (BITS_PER_ULONG > GMP_NUMB_BITS)
return;
mpf_init (got);
mpf_init (u);
for (i = 0; i < 200; i++)
{
/* got precision */
prec = min_prec + gmp_urandomm_ui (rands, 15L);
refmpf_set_prec_limbs (got, prec);
/* u precision */
prec = min_prec + gmp_urandomm_ui (rands, 15L);
refmpf_set_prec_limbs (u, prec);
/* u, possibly negative */
mpf_random2 (u, PREC(u), (mp_exp_t) 20);
if (gmp_urandomb_ui (rands, 1L))
mpf_neg (u, u);
/* v, 0 to BITS_PER_ULONG bits (inclusive) */
prec = gmp_urandomm_ui (rands, BITS_PER_ULONG+1);
v = gmp_urandomb_ui (rands, prec);
if ((i % 2) == 0)
{
/* separate */
mpf_mul_ui (got, u, v);
check_one ("separate", got, u, v);
}
else
{
/* overlap */
prec = refmpf_set_overlap (got, u);
mpf_mul_ui (got, got, v);
check_one ("overlap src==dst", got, u, v);
mpf_set_prec_raw (got, prec);
}
}
mpf_clear (got);
mpf_clear (u);
}
/* Exercise calls mpf(x,x,x) */
void
check_reuse_three (void)
{
unsigned long min_prec = __GMPF_BITS_TO_PREC (1);
gmp_randstate_ptr rands = RANDS;
unsigned long result_prec, input_prec, set_prec;
mpf_t got;
int i;
mpf_init (got);
for (i = 0; i < 8; i++)
{
result_prec = min_prec + gmp_urandomm_ui (rands, 15L);
input_prec = min_prec + gmp_urandomm_ui (rands, 15L);
set_prec = MAX (result_prec, input_prec);
refmpf_set_prec_limbs (got, set_prec);
/* input, non-zero, possibly negative */
PREC(got) = input_prec;
do {
mpf_random2 (got, input_prec, (mp_exp_t) 20);
} while (SIZ(got) == 0);
if (gmp_urandomb_ui (rands, 1L))
mpf_neg (got, got);
PREC(got) = result_prec;
mpf_div (got, got, got);
/* expect exactly 1.0 always */
ASSERT_ALWAYS (mpf_cmp_ui (got, 1L) == 0);
PREC(got) = set_prec;
}
mpf_clear (got);
}
void
check_rand (void)
{
unsigned long min_prec = __GMPF_BITS_TO_PREC (1);
gmp_randstate_ptr rands = RANDS;
unsigned long prec;
mpf_t got, u, v;
int i;
mpf_init (got);
mpf_init (u);
mpf_init (v);
/* separate */
for (i = 0; i < 100; i++)
{
/* got precision */
prec = min_prec + gmp_urandomm_ui (rands, 15L);
refmpf_set_prec_limbs (got, prec);
/* u */
prec = min_prec + gmp_urandomm_ui (rands, 15L);
refmpf_set_prec_limbs (u, prec);
do {
mpf_random2 (u, PREC(u), (mp_exp_t) 20);
} while (SIZ(u) == 0);
if (gmp_urandomb_ui (rands, 1L))
mpf_neg (u, u);
/* v */
prec = min_prec + gmp_urandomm_ui (rands, 15L);
refmpf_set_prec_limbs (v, prec);
do {
mpf_random2 (v, PREC(v), (mp_exp_t) 20);
} while (SIZ(v) == 0);
if (gmp_urandomb_ui (rands, 1L))
mpf_neg (v, v);
switch (i % 3) {
case 0:
mpf_div (got, u, v);
check_one ("separate", got, u, v);
break;
case 1:
prec = refmpf_set_overlap (got, u);
mpf_div (got, got, v);
check_one ("dst == u", got, u, v);
mpf_set_prec_raw (got, prec);
break;
case 2:
prec = refmpf_set_overlap (got, v);
mpf_div (got, u, got);
check_one ("dst == v", got, u, v);
mpf_set_prec_raw (got, prec);
break;
}
}
mpf_clear (got);
mpf_clear (u);
mpf_clear (v);
}
int
main (int argc, char **argv)
{
mp_size_t size;
mp_exp_t exp;
int reps = 10000;
int i;
mpf_t u, v, w, x;
mp_size_t bprec = SIZE * GMP_LIMB_BITS;
mpf_t rerr, limit_rerr;
unsigned long ulimb, vlimb;
int single_flag;
tests_start ();
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init (rerr);
mpf_init (limit_rerr);
mpf_init (u);
mpf_init (v);
mpf_init (w);
mpf_init (x);
for (i = 0; i < reps; i++)
{
mp_size_t res_prec;
res_prec = urandom () % bprec + 1;
mpf_set_prec (w, res_prec);
mpf_set_prec (x, res_prec);
mpf_set_ui (limit_rerr, 1);
mpf_div_2exp (limit_rerr, limit_rerr, res_prec - 1);
single_flag = 0;
if ((urandom () & 1) != 0)
{
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % SIZE;
mpf_random2 (u, size, exp);
}
else
{
ulimb = urandom ();
mpf_set_ui (u, ulimb);
single_flag = 1;
}
if ((urandom () & 1) != 0)
{
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % SIZE;
mpf_random2 (v, size, exp);
}
else
{
vlimb = urandom ();
mpf_set_ui (v, vlimb);
single_flag = 2;
}
if (mpf_sgn (v) == 0)
continue;
mpf_div (w, u, v);
mpf_mul (x, w, v);
mpf_reldiff (rerr, u, x);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_mul or mpf_div after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" x = "); mpf_dump (x);
printf (" w = "); mpf_dump (w);
abort ();
}
if (single_flag == 2)
{
mpf_div_ui (x, u, vlimb);
mpf_reldiff (rerr, w, x);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_div or mpf_div_ui after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" x = "); mpf_dump (x);
printf (" w = "); mpf_dump (w);
abort ();
}
}
if (single_flag == 1)
{
mpf_ui_div (x, ulimb, v);
mpf_reldiff (rerr, w, x);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_div or mpf_ui_div after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" x = "); mpf_dump (x);
printf (" w = "); mpf_dump (w);
abort ();
}
}
}
mpf_clear (rerr);
mpf_clear (limit_rerr);
mpf_clear (u);
mpf_clear (v);
mpf_clear (w);
mpf_clear (x);
tests_end ();
exit (0);
}
int
main (int argc, char **argv)
{
mpf_t x, y;
int reps = 20000;
int i;
mp_size_t bprec = 100;
mpf_t d, rerr, max_rerr, limit_rerr;
char *str;
mp_exp_t bexp;
long size, exp;
int base;
char buf[SIZE * GMP_LIMB_BITS + 5];
tests_start ();
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init_set_ui (limit_rerr, 1);
mpf_div_2exp (limit_rerr, limit_rerr, bprec);
#if VERBOSE
mpf_dump (limit_rerr);
#endif
mpf_init (rerr);
mpf_init_set_ui (max_rerr, 0);
mpf_init (x);
mpf_init (y);
mpf_init (d);
/* First test some specific values. */
mpf_set_str (y, "1.23456e1000", 0);
mpf_set_str (x, "1.23456e1000", 10);
if (mpf_cmp (x, y) != 0)
abort ();
mpf_set_str (x, "1.23456e+1000", 0);
if (mpf_cmp (x, y) != 0)
abort ();
mpf_set_str (x, "1.23456e+1000", 10);
if (mpf_cmp (x, y) != 0)
abort ();
/* Now test random values. */
for (i = 0; i < reps; i++)
{
if (i == 0)
{
/* exercise the special case in get_str for for x==0 */
mpf_set_ui (x, 0L);
base = 10;
}
else
{
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % EXPO;
mpf_random2 (x, size, exp);
base = urandom () % 61 + 2;
}
str = mpf_get_str (0, &bexp, base, 0, x);
if (str[0] == '-')
sprintf (buf, "-0.%s@%ld", str + 1, bexp);
else
sprintf (buf, "0.%s@%ld", str, bexp);
mpf_set_str_or_abort (y, buf, -base);
(*__gmp_free_func) (str, strlen (str) + 1);
mpf_reldiff (rerr, x, y);
if (mpf_cmp (rerr, max_rerr) > 0)
{
mpf_set (max_rerr, rerr);
#if VERBOSE
mpf_dump (max_rerr);
#endif
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR after %d tests\n", i);
printf ("base = %d\n", base);
printf (" x = ");
mpf_dump (x);
printf (" y = ");
mpf_dump (y);
abort ();
}
}
}
mpf_clear (limit_rerr);
mpf_clear (rerr);
mpf_clear (max_rerr);
mpf_clear (x);
mpf_clear (y);
mpf_clear (d);
tests_end ();
exit (0);
}
int
main (int argc, char **argv)
{
int i;
int pass, reps = 10000;
mpf_t in1, in2, out1;
unsigned long int in1i, in2i;
mpf_t res1, res2, res3;
mp_size_t bprec = 100;
tests_start ();
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init (in1);
mpf_init (in2);
mpf_init (out1);
mpf_init (res1);
mpf_init (res2);
mpf_init (res3);
for (pass = 1; pass <= reps; pass++)
{
mpf_random2 (in1, urandom () % SIZE - SIZE/2, urandom () % EXPO);
mpf_random2 (in2, urandom () % SIZE - SIZE/2, urandom () % EXPO);
for (i = 0; i < sizeof (dss_funcs) / sizeof (dss_func); i++)
{
/* Don't divide by 0. */
if (i == 0 && mpf_cmp_ui (in2, 0) == 0)
continue;
(dss_funcs[i]) (res1, in1, in2);
mpf_set (out1, in1);
(dss_funcs[i]) (out1, out1, in2);
mpf_set (res2, out1);
mpf_set (out1, in2);
(dss_funcs[i]) (out1, in1, out1);
mpf_set (res3, out1);
if (mpf_cmp (res1, res2) != 0)
dump_abort (dss_func_names[i], res1, res2);
if (mpf_cmp (res1, res3) != 0)
dump_abort (dss_func_names[i], res1, res3);
}
in2i = urandom ();
for (i = 0; i < sizeof (dsi_funcs) / sizeof (dsi_func); i++)
{
/* Don't divide by 0. */
if (strcmp (dsi_func_names[i], "mpf_div_ui") == 0 && in2i == 0)
continue;
(dsi_funcs[i]) (res1, in1, in2i);
mpf_set (out1, in1);
(dsi_funcs[i]) (out1, out1, in2i);
mpf_set (res2, out1);
if (mpf_cmp (res1, res2) != 0)
dump_abort (dsi_func_names[i], res1, res2);
}
in1i = urandom ();
for (i = 0; i < sizeof (dis_funcs) / sizeof (dis_func); i++)
{
/* Don't divide by 0. */
if (strcmp (dis_func_names[i], "mpf_ui_div") == 0
&& mpf_cmp_ui (in2, 0) == 0)
continue;
(dis_funcs[i]) (res1, in1i, in2);
mpf_set (out1, in2);
(dis_funcs[i]) (out1, in1i, out1);
mpf_set (res2, out1);
if (mpf_cmp (res1, res2) != 0)
dump_abort (dis_func_names[i], res1, res2);
}
}
mpf_clear (in1);
mpf_clear (in2);
mpf_clear (out1);
mpf_clear (res1);
mpf_clear (res2);
mpf_clear (res3);
tests_end ();
exit (0);
}
int
main (int argc, char **argv)
{
int reps = 100000;
int i;
mpf_t u, v, w1, w2, w3;
mp_size_t bprec = 100;
mpf_t rerr, limit_rerr;
mp_size_t un;
mp_exp_t ue;
tests_start ();
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init (rerr);
mpf_init (limit_rerr);
mpf_init (u);
mpf_init (v);
mpf_init (w1);
mpf_init (w2);
mpf_init (w3);
for (i = 0; i < reps; i++)
{
unsigned long int res_prec;
unsigned long int pow2;
res_prec = urandom () % (bprec + 100);
mpf_set_prec (w1, res_prec);
mpf_set_prec (w2, res_prec);
mpf_set_prec (w3, res_prec);
mpf_set_ui (limit_rerr, 1);
mpf_div_2exp (limit_rerr, limit_rerr, res_prec);
pow2 = urandom () % 0x10000;
mpf_set_ui (v, 1);
mpf_mul_2exp (v, v, pow2);
un = urandom () % (2 * SIZE) - SIZE;
ue = urandom () % SIZE;
mpf_random2 (u, un, ue);
mpf_div_2exp (w1, u, pow2);
mpf_div (w2, u, v);
mpf_reldiff (rerr, w1, w2);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_div or mpf_div_2exp after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" w1 = "); mpf_dump (w1);
printf (" w2 = "); mpf_dump (w2);
abort ();
}
mpf_mul_2exp (w3, w1, pow2);
mpf_reldiff (rerr, u, w3);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_mul_2exp after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" w1 = "); mpf_dump (w1);
printf (" w3 = "); mpf_dump (w3);
abort ();
}
}
mpf_clear (rerr);
mpf_clear (limit_rerr);
mpf_clear (u);
mpf_clear (v);
mpf_clear (w1);
mpf_clear (w2);
mpf_clear (w3);
tests_end ();
exit (0);
}
void
check_rand1 (int argc, char **argv)
{
mp_size_t size;
mp_exp_t exp;
int reps = 20000;
int i;
mpf_t x, y, y2;
mp_size_t bprec = 100;
mpf_t rerr, max_rerr, limit_rerr;
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init_set_ui (limit_rerr, 1);
mpf_div_2exp (limit_rerr, limit_rerr, bprec);
#if VERBOSE
mpf_dump (limit_rerr);
#endif
mpf_init (rerr);
mpf_init_set_ui (max_rerr, 0);
mpf_init (x);
mpf_init (y);
mpf_init (y2);
for (i = 0; i < reps; i++)
{
size = urandom () % SIZE;
exp = urandom () % SIZE;
mpf_random2 (x, size, exp);
mpf_sqrt (y, x);
MPF_CHECK_FORMAT (y);
mpf_mul (y2, y, y);
mpf_reldiff (rerr, x, y2);
if (mpf_cmp (rerr, max_rerr) > 0)
{
mpf_set (max_rerr, rerr);
#if VERBOSE
mpf_dump (max_rerr);
#endif
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR after %d tests\n", i);
printf (" x = "); mpf_dump (x);
printf (" y = "); mpf_dump (y);
printf (" y2 = "); mpf_dump (y2);
printf (" rerr = "); mpf_dump (rerr);
printf (" limit_rerr = "); mpf_dump (limit_rerr);
printf ("in hex:\n");
mp_trace_base = 16;
mpf_trace (" x ", x);
mpf_trace (" y ", y);
mpf_trace (" y2 ", y2);
mpf_trace (" rerr ", rerr);
mpf_trace (" limit_rerr", limit_rerr);
abort ();
}
}
}
mpf_clear (limit_rerr);
mpf_clear (rerr);
mpf_clear (max_rerr);
mpf_clear (x);
mpf_clear (y);
mpf_clear (y2);
}
void
check_rand2 (void)
{
unsigned long max_prec = 20;
unsigned long min_prec = __GMPF_BITS_TO_PREC (1);
gmp_randstate_ptr rands = RANDS;
unsigned long x_prec, r_prec;
mpf_t x, r, s;
int i;
mpf_init (x);
mpf_init (r);
mpf_init (s);
refmpf_set_prec_limbs (s, 2*max_prec+10);
for (i = 0; i < 500; i++)
{
/* input precision */
x_prec = gmp_urandomm_ui (rands, max_prec-min_prec) + min_prec;
refmpf_set_prec_limbs (x, x_prec);
/* result precision */
r_prec = gmp_urandomm_ui (rands, max_prec-min_prec) + min_prec;
refmpf_set_prec_limbs (r, r_prec);
mpf_random2 (x, x_prec, 1000);
mpf_sqrt (r, x);
MPF_CHECK_FORMAT (r);
/* Expect to prec limbs of result.
In the current implementation there's no stripping of low zero
limbs in mpf_sqrt, so size should be exactly prec. */
if (SIZ(r) != r_prec)
{
printf ("mpf_sqrt wrong number of result limbs\n");
mpf_trace (" x", x);
mpf_trace (" r", r);
printf (" r_prec=%lu\n", r_prec);
printf (" SIZ(r) %ld\n", (long) SIZ(r));
printf (" PREC(r) %ld\n", (long) PREC(r));
abort ();
}
/* Must have r^2 <= x, since r has been truncated. */
mpf_mul (s, r, r);
if (! (mpf_cmp (s, x) <= 0))
{
printf ("mpf_sqrt result too big\n");
mpf_trace (" x", x);
printf (" r_prec=%lu\n", r_prec);
mpf_trace (" r", r);
mpf_trace (" s", s);
abort ();
}
/* Must have (r+ulp)^2 > x, or else r is too small. */
refmpf_add_ulp (r);
mpf_mul (s, r, r);
if (! (mpf_cmp (s, x) > 0))
{
printf ("mpf_sqrt result too small\n");
mpf_trace (" x", x);
printf (" r_prec=%lu\n", r_prec);
mpf_trace (" r+ulp", r);
mpf_trace (" s", s);
abort ();
}
}
mpf_clear (x);
mpf_clear (r);
mpf_clear (s);
}
int
main (void)
{
mpfr_t x, u;
mpf_t y, z;
mp_exp_t emax;
unsigned long k, pr;
int r, inexact;
MPFR_TEST_USE_RANDS ();
tests_start_mpfr ();
mpf_init (y);
mpf_init (z);
mpf_set_d (y, 0.0);
/* check prototype of mpfr_init_set_f */
mpfr_init_set_f (x, y, GMP_RNDN);
mpfr_set_prec (x, 100);
mpfr_set_f (x, y, GMP_RNDN);
mpf_random2 (y, 10, 0);
mpfr_set_f (x, y, (mp_rnd_t) RND_RAND());
/* bug found by Jean-Pierre Merlet */
mpfr_set_prec (x, 256);
mpf_set_prec (y, 256);
mpfr_init2 (u, 256);
mpfr_set_str (u,
"7.f10872b020c49ba5e353f7ced916872b020c49ba5e353f7ced916872b020c498@2",
16, GMP_RNDN);
mpf_set_str (y, "2033033E-3", 10); /* avoid 2033.033 which is
locale-sensitive */
mpfr_set_f (x, y, GMP_RNDN);
if (mpfr_cmp (x, u))
{
printf ("mpfr_set_f failed for y=2033033E-3\n");
exit (1);
}
mpf_set_str (y, "-2033033E-3", 10); /* avoid -2033.033 which is
locale-sensitive */
mpfr_set_f (x, y, GMP_RNDN);
mpfr_neg (u, u, GMP_RNDN);
if (mpfr_cmp (x, u))
{
printf ("mpfr_set_f failed for y=-2033033E-3\n");
exit (1);
}
mpf_set_prec (y, 300);
mpf_set_str (y, "1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111", -2);
mpf_mul_2exp (y, y, 600);
mpfr_set_prec (x, 300);
mpfr_set_f (x, y, GMP_RNDN);
if (mpfr_check (x) == 0)
{
printf ("Error in mpfr_set_f: corrupted result\n");
mpfr_dump (x);
exit (1);
}
MPFR_ASSERTN(mpfr_cmp_ui_2exp (x, 1, 901) == 0);
for (k = 1; k <= 100000; k++)
{
pr = 2 + (randlimb () & 255);
mpf_set_prec (z, pr);
mpf_random2 (z, z->_mp_prec, 0);
mpfr_set_prec (x, pr);
mpfr_set_f (x, z, (mp_rnd_t) 0);
}
/* Check for +0 */
mpfr_set_prec (x, 53);
mpf_set_prec (y, 53);
mpf_set_ui (y, 0);
for (r = 0 ; r < GMP_RND_MAX ; r++)
{
int i;
for (i = -1; i <= 1; i++)
{
if (i)
mpfr_set_si (x, i, GMP_RNDN);
inexact = mpfr_set_f (x, y, (mp_rnd_t) r);
if (!MPFR_IS_ZERO(x) || !MPFR_IS_POS(x) || inexact)
{
printf ("mpfr_set_f(x,0) failed for %s, i = %d\n",
mpfr_print_rnd_mode ((mp_rnd_t) r), i);
exit (1);
}
}
}
/* coverage test */
mpf_set_prec (y, 2);
mpfr_set_prec (x, 3 * mp_bits_per_limb);
mpf_set_ui (y, 1);
for (r = 0; r < mp_bits_per_limb; r++)
{
mpfr_random (x); /* to fill low limbs with random data */
inexact = mpfr_set_f (x, y, GMP_RNDN);
MPFR_ASSERTN(inexact == 0 && mpfr_cmp_ui_2exp (x, 1, r) == 0);
mpf_mul_2exp (y, y, 1);
}
mpf_set_ui (y, 1);
mpf_mul_2exp (y, y, ULONG_MAX);
mpfr_set_f (x, y, GMP_RNDN);
mpfr_set_ui (u, 1, GMP_RNDN);
mpfr_mul_2ui (u, u, ULONG_MAX, GMP_RNDN);
if (!mpfr_equal_p (x, u))
{
printf ("Error: mpfr_set_f (x, y, GMP_RNDN) for y = 2^ULONG_MAX\n");
exit (1);
}
emax = mpfr_get_emax ();
/* For mpf_mul_2exp, emax must fit in an unsigned long! */
if (emax >= 0 && emax <= ULONG_MAX)
{
mpf_set_ui (y, 1);
mpf_mul_2exp (y, y, emax);
mpfr_set_f (x, y, GMP_RNDN);
mpfr_set_ui_2exp (u, 1, emax, GMP_RNDN);
if (!mpfr_equal_p (x, u))
{
printf ("Error: mpfr_set_f (x, y, GMP_RNDN) for y = 2^emax\n");
exit (1);
}
}
/* For mpf_mul_2exp, emax - 1 must fit in an unsigned long! */
if (emax >= 1 && emax - 1 <= ULONG_MAX)
{
mpf_set_ui (y, 1);
mpf_mul_2exp (y, y, emax - 1);
mpfr_set_f (x, y, GMP_RNDN);
mpfr_set_ui_2exp (u, 1, emax - 1, GMP_RNDN);
if (!mpfr_equal_p (x, u))
{
printf ("Error: mpfr_set_f (x, y, GMP_RNDN) for y = 2^(emax-1)\n");
exit (1);
}
}
mpfr_clear (x);
mpfr_clear (u);
mpf_clear (y);
mpf_clear (z);
tests_end_mpfr ();
return 0;
}
int
main (int argc, char **argv)
{
mp_size_t size;
mp_exp_t exp;
int reps = 20000;
int i;
mpf_t u, v, w, wref;
mp_size_t bprec = 100;
mpf_t rerr, max_rerr, limit_rerr;
tests_start ();
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init_set_ui (limit_rerr, 1);
mpf_div_2exp (limit_rerr, limit_rerr, bprec);
#if VERBOSE
mpf_dump (limit_rerr);
#endif
mpf_init (rerr);
mpf_init_set_ui (max_rerr, 0);
mpf_init (u);
mpf_init (v);
mpf_init (w);
mpf_init (wref);
for (i = 0; i < reps; i++)
{
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % SIZE;
mpf_random2 (u, size, exp);
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % SIZE;
mpf_random2 (v, size, exp);
mpf_add (w, u, v);
refmpf_add (wref, u, v);
mpf_reldiff (rerr, w, wref);
if (mpf_cmp (rerr, max_rerr) > 0)
{
mpf_set (max_rerr, rerr);
#if VERBOSE
mpf_dump (max_rerr);
#endif
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf ("wref = "); mpf_dump (wref);
printf (" w = "); mpf_dump (w);
abort ();
}
}
}
mpf_clear (limit_rerr);
mpf_clear (rerr);
mpf_clear (max_rerr);
mpf_clear (u);
mpf_clear (v);
mpf_clear (w);
mpf_clear (wref);
tests_end ();
exit (0);
}