Add header guards to all the Gizmo files. Also use a more uniform style for the existing ones.

src/hydro/Gizmo/hydro.h

@@ -17,6 +17,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_GIZMO_HYDRO_H
+#define SWIFT_GIZMO_HYDRO_H
 
 #include "adiabatic_index.h"
 #include "approx_math.h"
@@ -840,3 +842,5 @@ __attribute__((always_inline)) INLINE static void hydro_set_entropy(
 #endif
   p->primitives.P = S * pow_gamma(p->primitives.rho);
 }
+
+#endif /* SWIFT_GIZMO_HYDRO_H */

src/hydro/Gizmo/hydro_debug.h

@@ -16,6 +16,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_GIZMO_HYDRO_DEBUG_H
+#define SWIFT_GIZMO_HYDRO_DEBUG_H
 
 __attribute__((always_inline)) INLINE static void hydro_debug_particle(
     const struct part* p, const struct xpart* xp) {
@@ -75,3 +77,5 @@ __attribute__((always_inline)) INLINE static void hydro_debug_particle(
       p->geometry.matrix_E[2][1], p->geometry.matrix_E[2][2],
       p->timestepvars.vmax, p->density.wcount_dh, p->density.wcount);
 }
+
+#endif /* SWIFT_GIZMO_HYDRO_DEBUG_H */

src/hydro/Gizmo/hydro_gradients.h

-
 /*******************************************************************************
  * This file is part of SWIFT.
  * Copyright (c) 2016 Bert Vandenbroucke (bert.vandenbroucke@gmail.com)
@@ -18,8 +17,8 @@
  *
  ******************************************************************************/
 
-#ifndef SWIFT_HYDRO_GRADIENTS_H
-#define SWIFT_HYDRO_GRADIENTS_H
+#ifndef SWIFT_HYDRO_GIZMO_GRADIENTS_H
+#define SWIFT_HYDRO_GIZMO_GRADIENTS_H
 
 #include "hydro_slope_limiters.h"
 #include "hydro_unphysical.h"
@@ -160,4 +159,4 @@ __attribute__((always_inline)) INLINE static void hydro_gradients_predict(
   gizmo_check_physical_quantity("pressure", Wj[4]);
 }
 
-#endif  // SWIFT_HYDRO_GRADIENTS_H
+#endif  /* SWIFT_HYDRO_GIZMO_GRADIENTS_H */

src/hydro/Gizmo/hydro_gradients_gizmo.h

@@ -22,6 +22,9 @@
  *
  * @param p Particle.
  */
+#ifndef SWIFT_GIZMO_HYDRO_GRADIENTS_H
+#define SWIFT_GIZMO_HYDRO_GRADIENTS_H
+
 __attribute__((always_inline)) INLINE static void hydro_gradients_init(
     struct part *p) {
 
@@ -484,3 +487,5 @@ __attribute__((always_inline)) INLINE static void hydro_gradients_finalize(
 
   hydro_slope_limit_cell(p);
 }
+
+#endif /* SWIFT_GIZMO_HYDRO_GRADIENTS_H */

src/hydro/Gizmo/hydro_gradients_sph.h

@@ -22,6 +22,9 @@
  *
  * @param p Particle.
  */
+#ifndef SWIFT_GIZMO_HYDRO_SPH_GRADIENTS_H
+#define SWIFT_GIZMO_HYDRO_SPH_GRADIENTS_H
+
 __attribute__((always_inline)) INLINE static void hydro_gradients_init(
     struct part *p) {
 
@@ -246,3 +249,5 @@ __attribute__((always_inline)) INLINE static void hydro_gradients_finalize(
 
   hydro_slope_limit_cell(p);
 }
+
+#endif /* SWIFT_GIZMO_HYDRO_SPH_GRADIENTS_H */

src/hydro/Gizmo/hydro_iact.h

@@ -18,6 +18,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_GIZMO_HYDRO_IACT_H
+#define SWIFT_GIZMO_HYDRO_IACT_H
 
 #include "adiabatic_index.h"
 #include "hydro_gradients.h"
@@ -486,3 +488,5 @@ __attribute__((always_inline)) INLINE static void runner_iact_nonsym_force(
 
   runner_iact_fluxes_common(r2, dx, hi, hj, pi, pj, 0);
 }
+
+#endif /* SWIFT_GIZMO_HYDRO_IACT_H */

src/hydro/Gizmo/hydro_io.h

@@ -16,6 +16,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_GIZMO_HYDRO_IO_H
+#define SWIFT_GIZMO_HYDRO_IO_H
 
 #include "adiabatic_index.h"
 #include "hydro.h"
@@ -186,3 +188,5 @@ void hydro_write_flavour(hid_t h_grpsph) {
  * @return 1 if entropy is in 'internal energy', 0 otherwise.
  */
 int writeEntropyFlag() { return 0; }
+
+#endif /* SWIFT_GIZMO_HYDRO_IO_H */

src/hydro/Gizmo/hydro_slope_limiters.h

@@ -91,4 +91,4 @@ __attribute__((always_inline)) INLINE static void hydro_slope_limit_cell(
 
 #endif
 
-#endif  // SWIFT_HYDRO_SLOPE_LIMITERS_H
+#endif  /* SWIFT_HYDRO_SLOPE_LIMITERS_H */

src/hydro/Gizmo/hydro_slope_limiters_cell.h

@@ -16,6 +16,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  ******************************************************************************/
+#ifndef SWIFT_GIZMO_SLOPE_LIMITER_CELL_H
+#define SWIFT_GIZMO_SLOPE_LIMITER_CELL_H
 
 #include <float.h>
 
@@ -171,3 +173,5 @@ __attribute__((always_inline)) INLINE static void hydro_slope_limit_cell(
     p->primitives.gradients.P[2] *= alpha;
   }
 }
+
+#endif /* SWIFT_GIZMO_SLOPE_LIMITER_CELL_H */

src/hydro/Gizmo/hydro_slope_limiters_face.h

@@ -29,6 +29,9 @@
  * @return The slope limited difference between the quantity at the particle
  * position and the quantity at the interface position.
  */
+#ifndef SWIFT_GIZMO_SLOPE_LIMITER_FACE_H
+#define SWIFT_GIZMO_SLOPE_LIMITER_FACE_H
+
 __attribute__((always_inline)) INLINE static float
 hydro_slope_limit_face_quantity(float phi_i, float phi_j, float phi_mid0,
                                 float xij_norm, float r) {
@@ -127,3 +130,5 @@ __attribute__((always_inline)) INLINE static void hydro_slope_limit_face(
   dWj[4] = hydro_slope_limit_face_quantity(Wj[4], Wi[4], Wj[4] + dWj[4],
                                            xij_j_norm, r);
 }
+
+#endif /* SWIFT_GIZMO_SLOPE_LIMITER_FACE_H */

src/hydro/Gizmo/hydro_unphysical.h

@@ -52,4 +52,4 @@
 
 #endif  // defined(GIZMO_UNPHYSICAL_ERROR) || defined(GIZMO_UNPHYSICAL_RESCUE)
 
-#endif  // SWIFT_HYDRO_UNPHYSICAL_H
+#endif  /* SWIFT_HYDRO_UNPHYSICAL_H */

src/hydro/Gizmo/hydro_velocities.h

@@ -152,4 +152,4 @@ __attribute__((always_inline)) INLINE static void hydro_velocities_set(
   }
 }
 
-#endif  // SWIFT_HYDRO_VELOCITIES_H
+#endif  /* SWIFT_HYDRO_VELOCITIES_H */