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/* type_isi.c -- Test functions associated with functions of the type
mpfi_f (mpfi_t, long, mpfi_t).
Copyright 2010,
Spaces project, Inria Lorraine
and Salsa project, INRIA Rocquencourt,
and Arenaire project, Inria Rhone-Alpes, France
and Lab. ANO, USTL (Univ. of Lille), France
This file is part of the MPFI Library.
The MPFI Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version.
The MPFI 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the MPFI Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "mpfi-tests.h"
extern unsigned long line_number;
static unsigned long test_line_number; /* start line of a test */
void
read_line_isi (mpfi_function_ptr this, FILE* fp)
{
test_line_number = line_number;
/* [1] return value */
read_exactness (fp, &(MPFI_FUN_ARG (*this, 1, i)));
/* [2] expected value */
read_mpfi (fp, MPFI_FUN_ARG (*this, 2, mpfi));
/* [3] signed integral operand */
read_si (fp, &(MPFI_FUN_ARG (*this, 3, si)));
/* [4] mpfi_t operand */
read_mpfi (fp, MPFI_FUN_ARG (*this, 4, mpfi));
}
/* check function against data at different precisions and test if an
input variable can be reused as output */
void
check_line_isi (mpfi_function_ptr this)
{
int inex;
/* rename operands for better readability */
ISI_fun f_ISI = MPFI_FUN_GET (*this, ISI);
mpfi_ptr got = MPFI_FUN_ARG (*this, 0, mpfi);
int expected_inex = MPFI_FUN_ARG (*this, 1, i);
mpfi_ptr expected = MPFI_FUN_ARG (*this, 2, mpfi);
long op1 = MPFI_FUN_ARG (*this, 3, si);
mpfi_ptr op2 = MPFI_FUN_ARG (*this, 4, mpfi);
mpfi_set_prec (got, mpfi_get_prec (expected));
inex = f_ISI (got, op1, op2);
if (inex != expected_inex || !same_value (got, expected)) {
printf ("Failed line %lu.\nop1 = %ld\nop2 = ", test_line_number, op1);
mpfi_out_str (stdout, 16, 0, op2);
printf ("\ngot = ");
mpfi_out_str (stdout, 16, 0, got);
printf ("\nexpected = ");
mpfi_out_str (stdout, 16, 0, expected);
putchar ('\n');
if (inex != expected_inex)
printf ("inexact flag: got = %u, expected = %u\n", inex, expected_inex);
exit (1);
}
/* reuse input variable as output */
if (mpfi_get_prec (got) == mpfi_get_prec (op2)) {
mpfi_set (got, op2);
inex = f_ISI (got, op1, got);
if (inex != expected_inex || !same_value (got, expected)) {
printf ("Error when reusing first input argument as output (line %lu)."
"\nop1 = %ld\nop2 = ", test_line_number, op1);
mpfi_out_str (stdout, 16, 0, op2);
printf ("\ngot = ");
mpfi_out_str (stdout, 16, 0, got);
printf ("\nexpected = ");
mpfi_out_str (stdout, 16, 0, expected);
putchar ('\n');
if (inex != expected_inex)
printf ("inexact flag: got = %u, expected = %u\n",
inex, expected_inex);
exit (1);
}
}
}
/* Check if the image of a random point chosen in the given interval is in the
image of this interval. */
void
random_isi (mpfi_function_ptr this)
{
/* rename operands for better readability */
ISI_fun f_ISI = MPFI_FUN_GET (*this, ISI);
RSR_fun f_RSR = MPFI_FUN_MPFR_FUNCTION (*this, ISI);
mpfi_ptr b = MPFI_FUN_ARG (*this, 2, mpfi);
mpfi_ptr a = MPFI_FUN_ARG (*this, 4, mpfi);
long si;
/* reuse endpoint as mpfr_t */
mpfi_ptr i = MPFI_FUN_ARG (*this, 0, mpfi);
mpfr_ptr x = &(i->left);
mpfr_ptr y = &(i->right);
si = random_si ();
random_interval (a);
if (this->random_domain != NULL) {
/* restrict the range of random interval to speed up tests */
this->random_domain (a);
}
mpfi_alea (x, a);
f_ISI (b, si, a);
f_RSR (y, si, x, MPFI_RNDD);
if (!mpfr_nan_p (y) && !MPFI_NAN_P (b) && !mpfi_is_inside_fr (y, b)) {
printf ("Error: the interval b, image of (n, a), does not contain the "
"point y, image of (n, x) where x is in a.\nn = %ld\na = ", si);
mpfi_out_str (stdout, 10, 0, a);
printf ("\nb = ");
mpfi_out_str (stdout, 10, 0, b);
printf ("\nx = ");
mpfr_out_str (stdout, 10, 0, x, MPFI_RNDU);
printf ("\ny = ");
mpfr_out_str (stdout, 10, 0, y, MPFI_RNDU);
putchar ('\n');
exit (1);
}
}
void
set_prec_isi (mpfi_function_ptr this, mp_prec_t prec)
{
mpfi_set_prec (MPFI_FUN_ARG (*this, 0, mpfi), prec);
mpfi_set_prec (MPFI_FUN_ARG (*this, 2, mpfi), prec);
mpfi_set_prec (MPFI_FUN_ARG (*this, 4, mpfi), prec);
}
void
clear_isi (mpfi_function_ptr this)
{
/* [0] initial value (mpfi_t) */
mpfi_clear (MPFI_FUN_ARG (*this, 0, mpfi));
/* [1] return value (int), needs no deallocation */
/* [2] expected value (mpfi_t) */
mpfi_clear (MPFI_FUN_ARG (*this, 2, mpfi));
/* [3] operand (signed long), needs no deallocation */
/* [4] operand (mpfi_t) */
mpfi_clear (MPFI_FUN_ARG (*this, 4, mpfi));
free (MPFI_FUN_ARGS (*this));
MPFI_FUN_ARGS (*this) = NULL;
}
/* In operands array, variables are in the same order as for data in
'.dat' files plus one additional variable before them. */
void
mpfi_fun_init_ISI (mpfi_function_ptr this, ISI_fun mpfi_function,
RSR_fun mpfr_function)
{
this->type = ISI;
this->func.ISI = mpfi_function;
this->mpfr_func.ISI = mpfr_function;
this->random_domain = NULL;
/* init operands */
MPFI_FUN_ARGS (*this) =
(mpfi_fun_operand_t*) malloc (5 * sizeof (mpfi_fun_operand_t));
/* [0] initial value (mpfi_t) */
mpfi_init2 (MPFI_FUN_ARG (*this, 0, mpfi), 1024);
/* [1] return value (int), needs no initialization */
/* [2] expected value (mpfi_t) */
mpfi_init2 (MPFI_FUN_ARG (*this, 2, mpfi), 1024);
/* [3] first operand (signed long), needs no initialization */
/* [4] second operand (mpfi_t) */
mpfi_init2 (MPFI_FUN_ARG (*this, 4, mpfi), 1024);
/* init methods */
this->set_prec = set_prec_isi;
this->read_line = read_line_isi;
this->check_line = check_line_isi;
this->random = random_isi;
this->clear = clear_isi;
}
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