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-rw-r--r--apps/mathlib/math/test/test.cpp93
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diff --git a/apps/mathlib/math/test/test.cpp b/apps/mathlib/math/test/test.cpp
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-/****************************************************************************
- *
- * 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 PX4 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.
- *
- ****************************************************************************/
-
-/**
- * @file test.cpp
- *
- * Test library code
- */
-
-#include <stdio.h>
-#include <math.h>
-
-#include "test.hpp"
-
-bool __EXPORT equal(float a, float b, float epsilon)
-{
- float diff = fabsf(a - b);
-
- if (diff > epsilon) {
- printf("not equal ->\n\ta: %12.8f\n\tb: %12.8f\n", double(a), double(b));
- return false;
-
- } else return true;
-}
-
-void __EXPORT float2SigExp(
- const float &num,
- float &sig,
- int &exp)
-{
- if (isnan(num) || isinf(num)) {
- sig = 0.0f;
- exp = -99;
- return;
- }
-
- if (fabsf(num) < 1.0e-38f) {
- sig = 0;
- exp = 0;
- return;
- }
-
- exp = log10f(fabsf(num));
-
- if (exp > 0) {
- exp = ceil(exp);
-
- } else {
- exp = floor(exp);
- }
-
- sig = num;
-
- // cheap power since it is integer
- if (exp > 0) {
- for (int i = 0; i < abs(exp); i++) sig /= 10;
-
- } else {
- for (int i = 0; i < abs(exp); i++) sig *= 10;
- }
-}
-
-