bool inputrecPbcXY2Walls(const t_inputrec* ir);
/*! \brief Returns true for MD integator with T and/or P-coupling that supports
- * calculating the conserved energy quantity.
+ * calculating a conserved energy quantity.
+ *
+ * Note that dynamical integrators without T and P coupling (ie NVE)
+ * return false, i.e. the return value refers to whether there
+ * is a conserved quantity different than the total energy.
*/
bool integratorHasConservedEnergyQuantity(const t_inputrec* ir);