Proper referencing and addition of header guards

src/hydro/Minimal/hydro.h

@@ -16,6 +16,23 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_MINIMAL_HYDRO_H
+#define SWIFT_MINIMAL_HYDRO_H
+
+/**
+ * @file Minimal/hydro.h
+ * @brief Minimal conservative implementation of SPH (Non-neighbour loop
+ * equations)
+ *
+ * The thermal variable is the internal energy (u). Simple constant
+ * viscosity term without switches is implemented. No thermal conduction
+ * term is implemented.
+ *
+ * This corresponds to equations (43), (44), (45), (101), (103)  and (104) with
+ * \f$\beta=3\f$ and \f$\alpha_u=0\f$ of
+ * Price, D., Journal of Computational Physics, 2012, Volume 231, Issue 3,
+ * pp. 759-794.
+ */
 
 #include "adiabatic_index.h"
 #include "dimension.h"
@@ -337,3 +354,5 @@ __attribute__((always_inline)) INLINE static void hydro_kick_extra(
  */
 __attribute__((always_inline)) INLINE static void hydro_convert_quantities(
     struct part *restrict p) {}
+
+#endif /* SWIFT_MINIMAL_HYDRO_H */

src/hydro/Minimal/hydro_debug.h

@@ -16,6 +16,22 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_MINIMAL_HYDRO_DEBUG_H
+#define SWIFT_MINIMAL_HYDRO_DEBUG_H
+
+/**
+ * @file Minimal/hydro_debug.h
+ * @brief Minimal conservative implementation of SPH (Debugging routines)
+ *
+ * The thermal variable is the internal energy (u). Simple constant
+ * viscosity term without switches is implemented. No thermal conduction
+ * term is implemented.
+ *
+ * This corresponds to equations (43), (44), (45), (101), (103)  and (104) with
+ * \f$\beta=3\f$ and \f$\alpha_u=0\f$ of
+ * Price, D., Journal of Computational Physics, 2012, Volume 231, Issue 3,
+ * pp. 759-794.
+ */
 
 __attribute__((always_inline)) INLINE static void hydro_debug_particle(
     const struct part* p, const struct xpart* xp) {
@@ -31,3 +47,5 @@ __attribute__((always_inline)) INLINE static void hydro_debug_particle(
       (int)p->density.wcount, p->mass, p->rho_dh, p->rho, p->ti_begin,
       p->ti_end);
 }
+
+#endif /* SWIFT_MINIMAL_HYDRO_DEBUG_H */

src/hydro/Minimal/hydro_iact.h

@@ -16,20 +16,25 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
-#ifndef SWIFT_RUNNER_IACT_MINIMAL_H
-#define SWIFT_RUNNER_IACT_MINIMAL_H
-
-#include "adiabatic_index.h"
+#ifndef SWIFT_MINIMAL_HYDRO_IACT_H
+#define SWIFT_MINIMAL_HYDRO_IACT_H
 
 /**
- * @file hydro_iact.h
- * @brief Minimal conservative implementation of SPH
+ * @file Minimal/hydro_iact.h
+ * @brief Minimal conservative implementation of SPH (Neighbour loop equations)
  *
  * The thermal variable is the internal energy (u). Simple constant
- * viscosity term without switche is implemented. No thermal conduction
- * terms is implemented.
+ * viscosity term without switches is implemented. No thermal conduction
+ * term is implemented.
+ *
+ * This corresponds to equations (43), (44), (45), (101), (103)  and (104) with
+ * \f$\beta=3\f$ and \f$\alpha_u=0\f$ of
+ * Price, D., Journal of Computational Physics, 2012, Volume 231, Issue 3,
+ * pp. 759-794.
  */
 
+#include "adiabatic_index.h"
+
 /**
  * @brief Density loop
  */
@@ -324,4 +329,4 @@ __attribute__((always_inline)) INLINE static void runner_iact_nonsym_vec_force(
       "function does not exist yet!");
 }
 
-#endif /* SWIFT_RUNNER_IACT_MINIMAL_H */
+#endif /* SWIFT_MINIMAL_HYDRO_IACT_H */

src/hydro/Minimal/hydro_io.h

@@ -16,6 +16,22 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_MINIMAL_HYDRO_IO_H
+#define SWIFT_MINIMAL_HYDRO_IO_H
+
+/**
+ * @file Minimal/hydro_io.h
+ * @brief Minimal conservative implementation of SPH (i/o routines)
+ *
+ * The thermal variable is the internal energy (u). Simple constant
+ * viscosity term without switches is implemented. No thermal conduction
+ * term is implemented.
+ *
+ * This corresponds to equations (43), (44), (45), (101), (103)  and (104) with
+ * \f$\beta=3\f$ and \f$\alpha_u=0\f$ of
+ * Price, D., Journal of Computational Physics, 2012, Volume 231, Issue 3,
+ * pp. 759-794.
+ */
 
 #include "adiabatic_index.h"
 #include "hydro.h"
@@ -122,3 +138,5 @@ void writeSPHflavour(hid_t h_grpsph) {
  * @return 1 if entropy is in 'internal energy', 0 otherwise.
  */
 int writeEntropyFlag() { return 0; }
+
+#endif /* SWIFT_MINIMAL_HYDRO_IO_H */

src/hydro/Minimal/hydro_part.h

@@ -16,6 +16,22 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_MINIMAL_HYDRO_PART_H
+#define SWIFT_MINIMAL_HYDRO_PART_H
+
+/**
+ * @file Minimal/hydro_part.h
+ * @brief Minimal conservative implementation of SPH (Particle definition)
+ *
+ * The thermal variable is the internal energy (u). Simple constant
+ * viscosity term without switches is implemented. No thermal conduction
+ * term is implemented.
+ *
+ * This corresponds to equations (43), (44), (45), (101), (103)  and (104) with
+ * \f$\beta=3\f$ and \f$\alpha_u=0\f$ of
+ * Price, D., Journal of Computational Physics, 2012, Volume 231, Issue 3,
+ * pp. 759-794.
+ */
 
 /**
  * @brief Particle fields not needed during the SPH loops over neighbours.
@@ -105,3 +121,5 @@ struct part {
   struct gpart* gpart; /*!< Pointer to corresponding gravity part. */
 
 } __attribute__((aligned(part_align)));
+
+#endif /* SWIFT_MINIMAL_HYDRO_PART_H */