Helpers.hh File Reference

#include <boost/math/special_functions/fpclassify.hpp>
#include <boost/math/special_functions/round.hpp>
#include <algorithm>
#include <cmath>
#include <limits>
#include <string>
#include <iostream>
#include <vector>

Go to the source code of this file.

Namespaces
	gazebo
	Forward declarations for the common classes.
	gazebo::math
	Math namespace.

Macros
#define	GZ_DBL_INF   std::numeric_limits<double>::infinity()
	Double positive infinite value. More...
#define	GZ_DBL_MAX   std::numeric_limits<double>::max()
	Double maximum value. More...
#define	GZ_DBL_MIN   std::numeric_limits<double>::min()
	Double min value. More...
#define	GZ_FLT_MAX   std::numeric_limits<float>::max()
	Float maximum value. More...
#define	GZ_FLT_MIN   std::numeric_limits<float>::min()
	Float minimum value. More...
#define	GZ_INT32_MAX   std::numeric_limits<int32_t>::max()
	32bit integer maximum value More...
#define	GZ_INT32_MIN   std::numeric_limits<int32_t>::min()
	32bit integer minimum value More...
#define	GZ_UINT32_MAX   std::numeric_limits<uint32_t>::max()
	32bit unsigned integer maximum value More...
#define	GZ_UINT32_MIN   std::numeric_limits<uint32_t>::min()
	32bit unsigned integer minimum value More...

Functions
template<typename T >
T	clamp (T _v, T _min, T _max)
	Simple clamping function. More...
template<typename T >
bool	equal (const T &_a, const T &_b, const T &_epsilon=1e-6)
	check if two values are equal, within a tolerance More...
float	fixnan (float _v)
	Fix a nan value. More...
double	fixnan (double _v)
	Fix a nan value. More...
bool	isnan (float _v)
	check if a float is NaN More...
bool	isnan (double _v)
	check if a double is NaN More...
bool	isPowerOfTwo (unsigned int _x)
	is this a power of 2? More...
template<typename T >
T	max (const std::vector< T > &_values)
	get the maximum value of vector of values More...
template<typename T >
T	mean (const std::vector< T > &_values)
	get mean of vector of values More...
template<typename T >
T	min (const std::vector< T > &_values)
	get the minimum value of vector of values More...
double	parseFloat (const std::string &_input)
	parse string into float More...
int	parseInt (const std::string &_input)
	parse string into an integer More...
template<typename T >
T	precision (const T &_a, const unsigned int &_precision)
	get value at a specified precision More...
unsigned int	roundUpPowerOfTwo (unsigned int _x)
	Get the smallest power of two that is greater or equal to a given value. More...
template<typename T >
T	variance (const std::vector< T > &_values)
	get variance of vector of values More...

Variables
static const double	NAN_D = std::numeric_limits<double>::quiet_NaN()
	Returns the representation of a quiet not a number (NAN) More...
static const int	NAN_I = std::numeric_limits<int>::quiet_NaN()
	Returns the representation of a quiet not a number (NAN) More...

Macro Definition Documentation

#define GZ_DBL_INF   std::numeric_limits<double>::infinity()

Double positive infinite value.

#define GZ_DBL_MAX   std::numeric_limits<double>::max()

Double maximum value.

#define GZ_DBL_MIN   std::numeric_limits<double>::min()

Double min value.

#define GZ_FLT_MAX   std::numeric_limits<float>::max()

Float maximum value.

#define GZ_FLT_MIN   std::numeric_limits<float>::min()

Float minimum value.

#define GZ_INT32_MAX   std::numeric_limits<int32_t>::max()

32bit integer maximum value

#define GZ_INT32_MIN   std::numeric_limits<int32_t>::min()

32bit integer minimum value

#define GZ_UINT32_MAX   std::numeric_limits<uint32_t>::max()

32bit unsigned integer maximum value

#define GZ_UINT32_MIN   std::numeric_limits<uint32_t>::min()

32bit unsigned integer minimum value