/****************************************************************************
* px4/sensors/test_gpio.c
*
* Copyright (C) 2012 PX4 Development Team. 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. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <debug.h>
#include <arch/board/board.h>
#include "tests.h"
#include <math.h>
#include <float.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: test_led
****************************************************************************/
typedef union {
int32_t i;
int64_t l;
uint8_t b[8];
} test_32_64_t;
int test_int(int argc, char *argv[])
{
int ret = 0;
printf("\n--- 64 BIT MATH TESTS ---\n");
int64_t large = 354156329598;
int64_t calc = large * 5;
if (calc == 1770781647990) {
printf("\t success: 354156329598 * 5 == %lld\n", calc);
} else {
printf("\t FAIL: 354156329598 * 5 != %lld\n", calc);
ret = -1;
}
fflush(stdout);
printf("\n--- 32 BIT / 64 BIT MIXED MATH TESTS ---\n");
int32_t small = 50;
int32_t large_int = 2147483647; // MAX INT value
uint64_t small_times_large = large_int * (uint64_t)small;
if (small_times_large == 107374182350) {
printf("\t success: 64bit calculation: 50 * 2147483647 (max int val) == %lld\n", small_times_large);
} else {
printf("\t FAIL: 50 * 2147483647 != %lld, 64bit cast might fail\n", small_times_large);
ret = -1;
}
fflush(stdout);
if (ret == 0) {
printf("\n SUCCESS: All float and double tests passed.\n");
} else {
printf("\n FAIL: One or more tests failed.\n");
}
printf("\n");
return ret;
}
