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RIOT/tests/printf_float/main.c

52 lines
1.2 KiB
C

/*
* Copyright (C) 2016 Alexandre Abadie <alexandre.abadie@inria.fr>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief print floating point values test application
*
* This test is supposed to check that floating point values can be
* displayed with printf function.
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
static const char * expected_result = "2016.0";
static const double floating_point_value = 2016.0317;
int main(void)
{
const uint8_t str_len = strlen(expected_result);
char result[str_len];
snprintf(result, str_len + 1,
"%.f", floating_point_value);
printf("Value displayed: %s\n", result);
if (strcmp(result, expected_result) == 0) {
printf("[OK]\n");
}
else {
printf("[FAILED] Values are not equal:\n"
"actual: %s\n"
"expected: %s\n", result, expected_result);
return 1;
}
return 0;
}