Use size_t for atom_table_count

Signed-off-by: Paul Guyot <pguyot@kallisys.net>

Author: pguyot

src/libAtomVM/atom_table.c

@@ -64,8 +64,8 @@ struct HNodeGroup
 
 struct AtomTable
 {
-    int capacity;
-    int count;
+    size_t capacity;
+    size_t count;
     int last_node_group_avail;
 #ifndef AVM_NO_SMP
     RWLock *lock;
@@ -118,10 +118,10 @@ void atom_table_destroy(struct AtomTable *table)
     free(table);
 }
 
-int atom_table_count(struct AtomTable *table)
+size_t atom_table_count(struct AtomTable *table)
 {
     SMP_RDLOCK(table);
-    int count = table->count;
+    size_t count = table->count;
     SMP_UNLOCK(table);
 
     return count;
@@ -204,7 +204,7 @@ long atom_table_get_index(struct AtomTable *table, AtomString string)
 // TODO: this function needs use an efficient structure such as a skip list
 static struct HNode *get_node_using_index(struct AtomTable *table, long index)
 {
-    if (UNLIKELY(index >= table->count)) {
+    if (UNLIKELY(((size_t) index) >= table->count)) {
         return NULL;
     }
 

src/libAtomVM/atom_table.h

@@ -53,7 +53,7 @@ typedef const void *atom_ref_t;
 struct AtomTable *atom_table_new();
 void atom_table_destroy(struct AtomTable *table);
 
-int atom_table_count(struct AtomTable *table);
+size_t atom_table_count(struct AtomTable *table);
 
 long atom_table_ensure_atom(struct AtomTable *table, AtomString string, enum AtomTableCopyOpt opts);
 

src/libAtomVM/opcodesswitch.h

@@ -1558,7 +1558,7 @@ COLD_FUNC static void dump(Context *ctx)
 
         fprintf(stderr, "process_count = %zu\n", process_count);
         fprintf(stderr, "ports_count = %zu\n", ports_count);
-        fprintf(stderr, "atoms_count = %d\n", atom_table_count(glb->atom_table));
+        fprintf(stderr, "atoms_count = %zu\n", atom_table_count(glb->atom_table));
         fprintf(stderr, "refc_binary_total_size = %zu\n", refc_binary_total_size(ctx));
     }
     fprintf(stderr, "\n\n**End Of Crash Report**\n");