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nearly_zero.h File Reference

Go to the source code of this file.

Defines
#define	IS_THRESHOLD_ZERO(value, threshold)   ((value) < (threshold) && (value) > -(threshold))
#define	IS_THRESHOLD_EQUAL(value1, value2, threshold)   (IS_THRESHOLD_ZERO((value1) - (value2), threshold))
#define	IS_THRESHOLD_COMPEQ(value1, value2, threshold)   (cfloor(value1 / threshold + 0.5f) == cfloor(value2 / threshold + 0.5f))
#define	NEARLY_ZERO(FLOATTYPE)   (get_nearly_zero_value((FLOATTYPE)0))
#define	IS_NEARLY_ZERO(value)   (IS_THRESHOLD_ZERO(value, get_nearly_zero_value(value)))
#define	IS_NEARLY_EQUAL(value1, value2)   (IS_THRESHOLD_EQUAL(value1, value2, get_nearly_zero_value(value1)))
#define	MAYBE_ZERO(value)   (IS_NEARLY_ZERO(value) ? 0.0 : (value))
Functions
INLINE_LINMATH double	get_nearly_zero_value (double)
INLINE_LINMATH float	get_nearly_zero_value (float)

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Define Documentation

#define IS_NEARLY_EQUAL (  value1, value2   )     (IS_THRESHOLD_EQUAL(value1, value2, get_nearly_zero_value(value1)))

Definition at line 67 of file nearly_zero.h. Referenced by ACMatrixSwitchType::output_value().

#define IS_NEARLY_ZERO (  value   )     (IS_THRESHOLD_ZERO(value, get_nearly_zero_value(value)))

Definition at line 62 of file nearly_zero.h. Referenced by BoundingSphere::contains_lineseg(), LinearCylinderVortexForce::get_child_vector(), CollisionSphere::intersects_line(), and PT().

#define IS_THRESHOLD_COMPEQ (  value1, value2, threshold   )     (cfloor(value1 / threshold + 0.5f) == cfloor(value2 / threshold + 0.5f))

Definition at line 52 of file nearly_zero.h. Referenced by FLOATNAME().

#define IS_THRESHOLD_EQUAL (  value1, value2, threshold   )     (IS_THRESHOLD_ZERO((value1) - (value2), threshold))

Definition at line 44 of file nearly_zero.h. Referenced by SceneGraphAnalyzer::consider_normals(), FFTCompressor::read_hprs(), and CollisionPolygon::verify_points().

#define IS_THRESHOLD_ZERO (  value, threshold   )     ((value) < (threshold) && (value) > -(threshold))

Definition at line 39 of file nearly_zero.h. Referenced by CollisionHandlerFloor::handle_entries().

#define MAYBE_ZERO (  value   )     (IS_NEARLY_ZERO(value) ? 0.0 : (value))

Definition at line 73 of file nearly_zero.h.

#define NEARLY_ZERO (  FLOATTYPE   )     (get_nearly_zero_value((FLOATTYPE)0))

Definition at line 58 of file nearly_zero.h.

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Function Documentation

INLINE_LINMATH float get_nearly_zero_value (  float   )

Definition at line 32 of file nearly_zero.h.

INLINE_LINMATH double get_nearly_zero_value (  double   )

Definition at line 27 of file nearly_zero.h.

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