Const correctness and cppcheck warnings

src/action_class_hash_array.cc

@@ -199,8 +199,9 @@ static void destroy(grib_context* context, grib_action* act)
 {
     grib_action_hash_array* self = (grib_action_hash_array*)act;
 
-    grib_hash_array_value* v = self->hash_array;
-    Assert(!v); // not implemented
+    // This is currently unset. So assert that it is NULL
+    const grib_hash_array_value* v = self->hash_array;
+    Assert(v == NULL);
     // if (v)
     //     grib_trie_delete(v->index);
     // while (v) {
@@ -335,6 +336,6 @@ grib_hash_array_value* get_hash_array(grib_handle* h, grib_action* a)
 
 const char* get_hash_array_full_path(grib_action* a)
 {
-    grib_action_hash_array* self = (grib_action_hash_array*)a;
+    const grib_action_hash_array* self = (grib_action_hash_array*)a;
     return self->full_path;
 }

src/action_class_noop.cc

@@ -73,16 +73,15 @@ grib_action* grib_action_create_noop(grib_context* context, const char* fname)
 {
     char buf[1024];
 
-    grib_action_noop* a;
     grib_action_class* c = grib_action_class_noop;
     grib_action* act     = (grib_action*)grib_context_malloc_clear_persistent(context, c->size);
     act->op              = grib_context_strdup_persistent(context, "section");
 
     act->cclass  = c;
-    a            = (grib_action_noop*)act;
+    grib_action_noop* a = (grib_action_noop*)act;
     act->context = context;
 
-    snprintf(buf, 1024, "_noop%p", (void*)a);
+    snprintf(buf, sizeof(buf), "_noop%p", (void*)a);
 
     act->name = grib_context_strdup_persistent(context, buf);
 

src/action_class_set.cc

@@ -114,8 +114,8 @@ static int execute(grib_action* a, grib_handle* h)
 
 static void dump(grib_action* act, FILE* f, int lvl)
 {
-    int i                 = 0;
-    grib_action_set* self = (grib_action_set*)act;
+    int i = 0;
+    const grib_action_set* self = (grib_action_set*)act;
     for (i = 0; i < lvl; i++)
         grib_context_print(act->context, f, "     ");
     grib_context_print(act->context, f, self->name);

src/action_class_template.cc

@@ -117,7 +117,7 @@ static void dump(grib_action* act, FILE* f, int lvl)
 static grib_action* get_empty_template(grib_context* c, int* err)
 {
     char fname[] = "empty_template.def";
-    char* path   = grib_context_full_defs_path(c, fname);
+    const char* path = grib_context_full_defs_path(c, fname);
     if (path) {
         *err = GRIB_SUCCESS;
         return grib_parse_file(c, path);

src/action_class_transient_darray.cc

@@ -122,8 +122,8 @@ static int execute(grib_action* act, grib_handle* h)
 
 static void dump(grib_action* act, FILE* f, int lvl)
 {
-    int i                              = 0;
-    grib_action_transient_darray* self = (grib_action_transient_darray*)act;
+    int i = 0;
+    const grib_action_transient_darray* self = (grib_action_transient_darray*)act;
     for (i = 0; i < lvl; i++)
         grib_context_print(act->context, f, "     ");
     grib_context_print(act->context, f, self->name);