test_conv.cpp

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/**
 * @file test_conv.cpp
 * Tests conversions used across the system.
 */

#include <sys/types.h>

#include <stdio.h>
#include <poll.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>

#include "tests_main.h"

#include <math.h>
#include <float.h>

#include <unit_test.h>
#include <px4iofirmware/protocol.h>

int test_conv(int argc, char *argv[])
{
    //PX4_INFO("Testing system conversions");

    for (int i = -10000; i <= 10000; i += 1) {
        float f = i / 10000.0f;
        float fres = REG_TO_FLOAT(FLOAT_TO_REG(f));

        if (fabsf(f - fres) > 0.0001f) {
            PX4_ERR("conversion fail: input: %8.4f, intermediate: %d, result: %8.4f", (double)f, REG_TO_SIGNED(FLOAT_TO_REG(f)),
                (double)fres);
            return 1;
        }
    }

    //PX4_INFO("All conversions clean");

    return 0;
}