Point Utilities

Macros
#define	PI   3.14159265358979323846
#define	DEG2RAD(deg)
#define	RAD2DEG(rad)
#define	IS_NAN(x)
#define	FLOAT_EPSILON   (1e-6f)
#define	DOUBLE_EPSILON   (1e-12)
#define	ROUND(x)
#define	FLOOR(x)
#define	CEIL(x)
#define	FLOAT_ABS(x)
#define	FLOAT_ALMOST_EQUALS(x, y)
#define	DOUBLE_ALMOST_EQUALS(x, y)
#define	FLOAT_RELATIVE_EQUAL(x, y)
#define	DOUBLE_RELATIVE_EQUAL(x, y)

Detailed Description

Macros for comparing and rounding floating point numbers.

Macro Definition Documentation

CEIL

#define CEIL

(

x

)

Value:

    (((x) == (i64)(x)) ? (i64)(x) : (((x) < 0.0) ? (i64)(x) : ((i64)(x) + 1)))

DEG2RAD

#define DEG2RAD

(

deg

)

Value:

((deg) * (PI) / 180.0)

DOUBLE_ALMOST_EQUALS

#define DOUBLE_ALMOST_EQUALS	(		x,
			y )

Value:

(FLOAT_ABS((x) - (y)) <= DOUBLE_EPSILON)

DOUBLE_EPSILON

#define DOUBLE_EPSILON   (1e-12)

DOUBLE_RELATIVE_EQUAL

#define DOUBLE_RELATIVE_EQUAL	(		x,
			y )

Value:

    (FLOAT_ABS((x) - (y)) <= (DOUBLE_EPSILON * MAX(FLOAT_ABS(x), FLOAT_ABS(y))))

FLOAT_ABS

#define FLOAT_ABS

(

x

)

Value:

(((x) < 0.0) ? -(x) : (x))

FLOAT_ALMOST_EQUALS

#define FLOAT_ALMOST_EQUALS	(		x,
			y )

Value:

(FLOAT_ABS((x) - (y)) <= FLOAT_EPSILON)

FLOAT_EPSILON

#define FLOAT_EPSILON   (1e-6f)

FLOAT_RELATIVE_EQUAL

#define FLOAT_RELATIVE_EQUAL	(		x,
			y )

Value:

    (FLOAT_ABS((x) - (y)) <= (FLOAT_EPSILON * MAX(FLOAT_ABS(x), FLOAT_ABS(y))))

FLOOR

#define FLOOR

(

x

)

Value:

(((x) < 0.0) ? ((i64)(x) - 1) : ((i64)(x)))

IS_NAN

#define IS_NAN

(

x

)

Value:

((x) != (x))

PI

#define PI   3.14159265358979323846

RAD2DEG

#define RAD2DEG

(

rad

)

Value:

((rad) * 180.0 / (PI))

ROUND

#define ROUND

(

x

)

Value:

(((x) < 0.0) ? ((i64)((x) - 0.5)) : ((i64)((x) + 0.5)))