Celeritas
0.5.0-86+4a8eea4
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Type-safe atomic number identifier. More...
#include <AtomicNumber.hh>
Public Member Functions | |
constexpr | AtomicNumber ()=default |
Construct with an invalid/unassigned value of zero. | |
CELER_CONSTEXPR_FUNCTION | AtomicNumber (int z_or_a_value) |
Construct with the Z value. | |
CELER_CONSTEXPR_FUNCTION | operator bool () const |
True if value is assigned/valid. | |
CELER_CONSTEXPR_FUNCTION int | unchecked_get () const |
Get the Z or A value. | |
CELER_FUNCTION int | get () const |
Get Z or A value. | |
Type-safe atomic number identifier.
Atomic numbers (Z and A) have constraints that integers do not (zero is not an atomic number, dividing one atomic number by another is meaningless) so this type improves the semantics and safety.
Generally speaking, Z and A numbers are used during setup and when evaluating expressions that use atomic charge. Z or A should not be used to "index" data during runtime.
Constructing with a nonpositive values gives the result in a false
state (get
will throw a DebugError
).