"The HLLC Riemann solver currently only supports and ideal gas equation of state. Either select this equation of state, or try using another Riemann solver!"
"The TRRS Riemann solver currently only supports an ideal gas equation of state. Either select this equation of state, or try using another Riemann solver!"
#endif
/**
* @brief Solve the Riemann problem using the Two Rarefaction Riemann Solver