numeric.h File Reference

Types and functions for numbers manipulation. More...

#include <geogram/basic/common.h>
#include <cmath>
#include <float.h>
#include <limits.h>
#include <algorithm>
#include <stdint.h>
#include <limits>

Go to the source code of this file.

Classes
struct	GEO::Numeric::LimitsHelper< T, is_numeric >
	Limits helper class that extends std::numeric_limits. More...
struct	GEO::Numeric::LimitsHelper< T, true >
	Specialization of LimitsHelper for numeric types. More...
struct	GEO::Numeric::Limits< T >
	Extends std::numeric_limits with additional information. More...

Namespaces
namespace	GEO
	Global Vorpaline namespace.
namespace	GEO::Numeric
	Defines numeric types used in Vorpaline.

Macros
#define	M_PI   3.14159265358979323846
	Value of the constant PI if not defined by the system.

Typedefs
typedef void *	GEO::Numeric::pointer
typedef int8_t	GEO::Numeric::int8
typedef int16_t	GEO::Numeric::int16
typedef int32_t	GEO::Numeric::int32
typedef int64_t	GEO::Numeric::int64
typedef uint8_t	GEO::Numeric::uint8
typedef uint16_t	GEO::Numeric::uint16
typedef uint32_t	GEO::Numeric::uint32
typedef uint64_t	GEO::Numeric::uint64
typedef float	GEO::Numeric::float32
typedef double	GEO::Numeric::float64
typedef geo_index_t	GEO::index_t
	The type for storing and manipulating indices.
typedef geo_signed_index_t	GEO::signed_index_t
	The type for storing and manipulating indices differences.
typedef geo_coord_index_t	GEO::coord_index_t
	The type for storing coordinate indices, and iterating on the coordinates of a point.

Enumerations
enum	GEO::Sign { GEO::NEGATIVE = -1 , GEO::ZERO = 0 , GEO::POSITIVE = 1 }
	Integer constants that represent the sign of a value. More...

Functions
template<class T >
Sign	GEO::geo_cmp (const T &a, const T &b)
	Compares two values.
template<class T >
Sign	GEO::geo_sgn (const T &x)
	Gets the sign of a value.
float32	GEO::Numeric::max_float32 ()
	Gets 32 bits float maximum positive value.
float32	GEO::Numeric::min_float32 ()
	Gets 32 bits float minimum negative value.
float64	GEO::Numeric::max_float64 ()
	Gets 64 bits float maximum positive value.
float64	GEO::Numeric::min_float64 ()
	Gets 64 bits float minimum negative value.
bool	GEO::Numeric::is_nan (float32 x)
	Checks whether a 32 bits float is "not a number".
bool	GEO::Numeric::is_nan (float64 x)
	Checks whether a 64 bits float is "not a number".
void	GEO::Numeric::random_reset ()
	Resets the random number generator.
int32	GEO::Numeric::random_int32 ()
	Returns a 32 bits integer between 0 and RAND_MAX.
float32	GEO::Numeric::random_float32 ()
	Returns a 32 bits float between 0 and 1.
float64	GEO::Numeric::random_float64 ()
	Returns a 64 bits float between 0 and 1.
template<class T >
void	GEO::Numeric::optimize_number_representation (T &x)
	place holder for optimizing internal number representation
template<class T >
Sign	GEO::Numeric::ratio_compare (const T &a_num, const T &a_denom, const T &b_num, const T &b_denom)
	Compares two rational numbers given as separate numerators and denominators.
template<class T >
T	GEO::geo_sqr (T x)
	Gets the square value of a value.
template<class T >
void	GEO::geo_clamp (T &x, T min, T max)
	Clamps a value to a range.
index_t	GEO::max_index_t ()
	Gets the maximum positive value of type index_t.
signed_index_t	GEO::max_signed_index_t ()
	Gets the maximum positive value of type signed_index_t.
signed_index_t	GEO::min_signed_index_t ()
	Gets the minimum negative value of type signed_index_t.
double	GEO::round (double x)

Detailed Description

Types and functions for numbers manipulation.

Definition in file numeric.h.

Macro Definition Documentation

M_PI

#define M_PI   3.14159265358979323846

Value of the constant PI if not defined by the system.

Definition at line 55 of file numeric.h.