fdl_rounding.cpp File Reference

FDL rounding functions (round, round_dimensions, round_point) using banker's rounding. More...

#include "fdl_rounding.h"
#include "fdl/fdl_core.h"
#include <cmath>
#include <cstdlib>

Functions
int64_t	fdl_round (double value, fdl_rounding_even_t even, fdl_rounding_mode_t mode)
	Round a single value according to FDL rounding rules.
fdl_dimensions_f64_t	fdl_round_dimensions (fdl_dimensions_f64_t dims, fdl_rounding_even_t even, fdl_rounding_mode_t mode)
	Round dimensions according to FDL rounding rules.
fdl_point_f64_t	fdl_round_point (fdl_point_f64_t point, fdl_rounding_even_t even, fdl_rounding_mode_t mode)
	Round a point according to FDL rounding rules.

Detailed Description

FDL rounding functions (round, round_dimensions, round_point) using banker's rounding.

Function Documentation

fdl_round()

int64_t fdl_round	(	double	value,
		fdl_rounding_even_t	even,
		fdl_rounding_mode_t	mode
	)

Round a single value according to FDL rounding rules.

Parameters

value	The floating-point value to round.
even	Even constraint (FDL_ROUNDING_EVEN_WHOLE or _EVEN).
mode	Rounding direction (FDL_ROUNDING_MODE_UP, _DOWN, or _ROUND).

Returns

Rounded integer value.

fdl_round_dimensions()

fdl_dimensions_f64_t fdl_round_dimensions	(	fdl_dimensions_f64_t	dims,
		fdl_rounding_even_t	even,
		fdl_rounding_mode_t	mode
	)

Round dimensions according to FDL rounding rules.

Parameters

dims	Dimensions to round.
even	Even constraint.
mode	Rounding direction.

Returns

Rounded dimensions (both width and height rounded independently).

fdl_round_point()

fdl_point_f64_t fdl_round_point	(	fdl_point_f64_t	point,
		fdl_rounding_even_t	even,
		fdl_rounding_mode_t	mode
	)

Round a point according to FDL rounding rules.

Parameters

point	Point to round.
even	Even constraint.
mode	Rounding direction.

Returns

Rounded point (both x and y rounded independently).