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author | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
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committer | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
commit | 8a365179eafdf3aea98e60ab9f5882b200d4c759 (patch) | |
tree | 4f38d6d4cd80bd0b6e22e2bb534c3f117ce44e56 /apps/px4/tests/test_int.c | |
download | px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.gz px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.bz2 px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.zip |
Fresh import of the PX4 firmware sources.
Diffstat (limited to 'apps/px4/tests/test_int.c')
-rw-r--r-- | apps/px4/tests/test_int.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/apps/px4/tests/test_int.c b/apps/px4/tests/test_int.c new file mode 100644 index 000000000..40e030641 --- /dev/null +++ b/apps/px4/tests/test_int.c @@ -0,0 +1,151 @@ +/**************************************************************************** + * 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 <arch/board/drv_led.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; +} |