Sense helper functions and types. More...

#include "corecel/Macros.hh"
#include "OrangeTypes.hh"

Functions
constexpr Sense	celeritas::to_sense (bool s)
	Convert a boolean value to a Sense enum.

constexpr Sense	celeritas::flip_sense (Sense orig)
	Change the sense across a surface.

constexpr SignedSense	celeritas::flip_sense (SignedSense orig)
	Change the sense across a surface.

constexpr SignedSense	celeritas::real_to_sense (real_type quadric)
	Evaluate the sense based on the LHS expression of the quadric equation.

constexpr Sense	celeritas::to_sense (SignedSense s)
	Convert a signed sense to a Sense enum.

constexpr SurfaceState	celeritas::to_surface_state (SignedSense s)
	Convert a signed sense to a surface state.

constexpr char	celeritas::to_char (Sense s)
	Get a printable character corresponding to a sense.

char const *	celeritas::to_cstring (SignedSense s)

Detailed Description

Sense helper functions and types.

Function Documentation

constexpr SignedSense celeritas::real_to_sense ( real_type quadric )

inlineconstexpr

Evaluate the sense based on the LHS expression of the quadric equation.

This is an optimized jump-free version of:

return quadric == 0 ? SignedSense::on
    : quadric < 0 ? SignedSense::inside
    : SignedSense::outside;

as

int gz = !(quadric <= 0) ? 1 : 0;
int lz = quadric < 0 ? 1 : 0;
return static_cast<SignedSense>(gz - lz);

and compressed into a single line.

NaN values are treated as "outside".