Suppressed unused variable and function warnings in model_rk3.cc

src/standalone/model/model_rk3.cc

@@ -697,19 +697,18 @@ entropy(const ModelScalarData& ss, const ModelVectorData& uu, const ModelScalarD
     */
 }
 
-static bool
+static inline bool
 is_valid(const ModelScalar a)
 {
     return !isnan(a) && !isinf(a);
 }
 
-static bool
+static inline bool
 is_valid(const ModelVector& a)
 {
     return is_valid(a.x) && is_valid(a.y) && is_valid(a.z);
 }
 
-
 #if 0
 //FORCING NOT SUPPORTED FOR AUTOTEST
 
@@ -849,6 +848,7 @@ solve_beta_step(const int step_number, const ModelScalar dt, const int i, const
     for (int w = 0; w < NUM_VTXBUF_HANDLES; ++w)
         out->vertex_buffer[w][idx] += beta[step_number] * in.vertex_buffer[w][idx];
 
+    (void)dt; // Suppress unused variable warning if forcing not used
 #if LFORCING
     if (step_number == 2) {
         ModelVector force = forcing((int3){i, j, k}, dt);