operator=(NaturalSemiring const&)

Warning

doxygenfunction: Unable to resolve function “libsemigroups::NaturalSemiring::operator=” with arguments (NaturalSemiring const&) in doxygen xml output for project “libsemigroups” from directory: ../build/xml. Potential matches:

- NaturalSemiring &operator=(NaturalSemiring const&) = default
- NaturalSemiring &operator=(NaturalSemiring&&) = default