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cryb-to/t/t_mpi_compar.c
2017-04-06 19:51:47 +02:00

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/*
* Copyright (c) 2014-2017 Dag-Erling Smørgrav
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "cryb/impl.h"
#include <sys/types.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <cryb/endian.h>
#include <cryb/mpi.h>
#include <cryb/test.h>
#include "t_mpi.h"
/***************************************************************************
* Comparison
*/
static struct t_cmp_case {
const char *desc;
int32_t a, b;
int cmp;
} t_cmp_cases[] = {
{ "-3 == -3", -3, -3, 0 },
{ "-3 < -2", -3, -2, -1 },
{ "-3 < -1", -3, -1, -1 },
{ "-3 < 0", -3, 0, -1 },
{ "-3 < 1", -3, 1, -1 },
{ "-3 < 2", -3, 2, -1 },
{ "-3 < 3", -3, 3, -1 },
{ "-2 > -3", -2, -3, 1 },
{ "-2 == -2", -2, -2, 0 },
{ "-2 < -1", -2, -1, -1 },
{ "-2 < 0", -2, 0, -1 },
{ "-2 < 1", -2, 1, -1 },
{ "-2 < 2", -2, 2, -1 },
{ "-2 < 3", -2, 3, -1 },
{ "-1 > -3", -1, -3, 1 },
{ "-1 > -2", -1, -2, 1 },
{ "-1 == -1", -1, -1, 0 },
{ "-1 < 0", -1, 0, -1 },
{ "-1 < 1", -1, 1, -1 },
{ "-1 < 2", -1, 2, -1 },
{ "-1 < 3", -1, 3, -1 },
{ "0 > -3", 0, -3, 1 },
{ "0 > -2", 0, -2, 1 },
{ "0 > -1", 0, -1, 1 },
{ "0 == 0", 0, 0, 0 },
{ "0 < 1", 0, 1, -1 },
{ "0 < 2", 0, 2, -1 },
{ "0 < 3", 0, 3, -1 },
{ "1 > -3", 1, -3, 1 },
{ "1 > -2", 1, -2, 1 },
{ "1 > -1", 1, -1, 1 },
{ "1 > 0", 1, 0, 1 },
{ "1 == 1", 1, 1, 0 },
{ "1 < 2", 1, 2, -1 },
{ "1 < 3", 1, 3, -1 },
{ "2 > -3", 2, -3, 1 },
{ "2 > -2", 2, -2, 1 },
{ "2 > -1", 2, -1, 1 },
{ "2 > 0", 2, 0, 1 },
{ "2 > 1", 2, 1, 1 },
{ "2 == 2", 2, 2, 0 },
{ "2 < 3", 2, 3, -1 },
{ "3 > -3", 3, -3, 1 },
{ "3 > -2", 3, -2, 1 },
{ "3 > -1", 3, -1, 1 },
{ "3 > 0", 3, 0, 1 },
{ "3 > 1", 3, 1, 1 },
{ "3 > 2", 3, 2, 1 },
{ "3 == 3", 3, 3, 0 },
};
/*
* Compare two MPIs
*/
static int
t_mpi_cmp(char **desc CRYB_UNUSED, void *arg)
{
struct t_cmp_case *tc = arg;
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, tc->a);
mpi_set(&b, tc->b);
ret &= t_compare_i(tc->cmp, mpi_cmp(&a, &b));
mpi_destroy(&a);
mpi_destroy(&b);
return (ret);
}
static int
t_mpi_eq(char **desc CRYB_UNUSED, void *arg)
{
struct t_cmp_case *tc = arg;
cryb_mpi a = CRYB_MPI_ZERO, b = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, tc->a);
mpi_set(&b, tc->b);
ret &= t_compare_i(tc->cmp == 0, mpi_eq(&a, &b));
mpi_destroy(&a);
mpi_destroy(&b);
return (ret);
}
/*
* Compare an MPI with itself
*/
static int
t_mpi_cmp_ident(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, CRYB_TO);
ret &= t_compare_i(0, mpi_cmp(&a, &a));
mpi_destroy(&a);
return (ret);
}
static int
t_mpi_eq_ident(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
cryb_mpi a = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, CRYB_TO);
ret &= t_compare_i(1, mpi_eq(&a, &a));
mpi_destroy(&a);
return (ret);
}
/*
* Compare an MPI with an integer
*/
static int
t_mpi_cmp_i32(char **desc CRYB_UNUSED, void *arg)
{
struct t_cmp_case *tc = arg;
cryb_mpi a = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, tc->a);
ret &= t_compare_i(tc->cmp, mpi_cmp_i32(&a, tc->b));
mpi_destroy(&a);
return (ret);
}
static int
t_mpi_eq_i32(char **desc CRYB_UNUSED, void *arg)
{
struct t_cmp_case *tc = arg;
cryb_mpi a = CRYB_MPI_ZERO;
int ret = 1;
mpi_set(&a, tc->a);
ret &= t_compare_i(tc->cmp == 0, mpi_eq_i32(&a, tc->b));
mpi_destroy(&a);
return (ret);
}
/***************************************************************************
* Boilerplate
*/
static int
t_prepare(int argc, char *argv[])
{
unsigned int i;
(void)argc;
(void)argv;
t_mpi_prepare();
/* comparison */
t_add_test(t_mpi_cmp_ident, NULL, "mpi cmp mpi (identity)");
for (i = 0; i < sizeof t_cmp_cases / sizeof t_cmp_cases[0]; ++i)
t_add_test(t_mpi_cmp, &t_cmp_cases[i],
"mpi cmp mpi (%s)", t_cmp_cases[i].desc);
t_add_test(t_mpi_eq_ident, NULL, "mpi eq mpi (identity)");
for (i = 0; i < sizeof t_cmp_cases / sizeof t_cmp_cases[0]; ++i)
t_add_test(t_mpi_eq, &t_cmp_cases[i],
"mpi eq mpi (%s)", t_cmp_cases[i].desc);
for (i = 0; i < sizeof t_cmp_cases / sizeof t_cmp_cases[0]; ++i)
t_add_test(t_mpi_cmp_i32, &t_cmp_cases[i],
"mpi cmp i32 (%s)", t_cmp_cases[i].desc);
for (i = 0; i < sizeof t_cmp_cases / sizeof t_cmp_cases[0]; ++i)
t_add_test(t_mpi_eq_i32, &t_cmp_cases[i],
"mpi eq i32 (%s)", t_cmp_cases[i].desc);
return (0);
}
static void
t_cleanup(void)
{
t_mpi_cleanup();
}
int
main(int argc, char *argv[])
{
t_main(t_prepare, t_cleanup, argc, argv);
}