celeritas::Label Struct Reference

Helper class for managing volume and material labels. More...

#include <Label.hh>

Public Member Functions
	Label ()=default
	Create an empty label.
	Label (char const *cstr)
	Create implicitly from a C string (mostly for testing)
	Label (std::string &&n)
	Create implicitly from just a string name (capture)
	Label (std::string const &n)
	Create implicitly from just a string name (copy)
	Label (std::string n, std::string e)
	Create from a name and label.
bool	empty () const
	Whether both the label and extension are empty.

Static Public Member Functions
static Label	from_geant (std::string const &name)
	Construct a label from a Geant4 pointer-appended name.
static Label	from_separator (std::string const &name, char sep=default_sep)
	Construct a label from by splitting on a separator.

Public Attributes
std::string	name
	Primary readable label component.
std::string	ext
	Uniquifying component: pointer address or ID.

Static Public Attributes
static constexpr char	default_sep = '@'
	Default separator for output and splitting.

Detailed Description

Helper class for managing volume and material labels.

This class is needed because names in Geant4/VecGeom can be non-unique. The only way to map between duplicate volume names between VecGeom and Geant4 is to ensure that pointers are written on output (and not cleared on input), and to use those as an "extension" to differentiate the duplicate volumes.

Materials likewise can have duplicate names (perhaps because some have different range cutoffs, etc.), so this class can be used to return a range of IDs that match a single material name.

See also

corecel/cont/LabelIdMultiMap.hh

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The documentation for this struct was generated from the following files:

• Label.hh
• Label.cc