Helper functions for st_foreach() return "enum st_retval" not "int"

Just making this a bit more consistent throughout the code

src/encoding.c

@@ -913,11 +913,11 @@ enc_name(mrb_state *mrb, mrb_value self)
 
 struct fn_arg {
   mrb_state *mrb;
-  int (*func)(ANYARGS);
+  enum st_retval (*func)(ANYARGS);
   void *a;
 };
 
-static int
+static enum st_retval
 fn_i(st_data_t key, st_data_t val, st_data_t arg) {
   struct fn_arg *a = (struct fn_arg*)arg;
 
@@ -925,7 +925,7 @@ fn_i(st_data_t key, st_data_t val, st_data_t arg) {
 }
 
 static int
-st_foreachNew(mrb_state *mrb, st_table *tbl, int (*func)(ANYARGS), void *a)
+st_foreachNew(mrb_state *mrb, st_table *tbl, enum st_retval (*func)(ANYARGS), void *a)
 {
   struct fn_arg arg = {
     mrb,
@@ -936,7 +936,7 @@ st_foreachNew(mrb_state *mrb, st_table *tbl, int (*func)(ANYARGS), void *a)
   return st_foreach(tbl, fn_i, (st_data_t)&arg);
 }
 
-static int
+static enum st_retval
 enc_names_i(mrb_state *mrb, st_data_t name, st_data_t idx, st_data_t args)
 {
   mrb_value *arg = (mrb_value *)args;
@@ -1521,7 +1521,7 @@ set_encoding_const(mrb_state *mrb, const char *name, mrb_encoding *enc)
     }
   }
 }
-static int
+static enum st_retval
 mrb_enc_name_list_i(mrb_state *mrb, st_data_t name, st_data_t idx, mrb_value *arg)
 {
     mrb_value ary = *arg;
@@ -1554,7 +1554,7 @@ mrb_enc_name_list(mrb_state *mrb, mrb_value klass)
     return ary;
 }
 
-static int
+static enum st_retval
 mrb_enc_aliases_enc_i(mrb_state *mrb, st_data_t name, st_data_t orig, st_data_t arg)
 {
     mrb_value *p = (mrb_value *)arg;

src/regparse.c

@@ -416,7 +416,7 @@ typedef st_data_t HashDataType;   /* 1.6 st.h doesn't define st_data_t type */
 #define NAMEBUF_SIZE_1  25
 
 #ifdef ONIG_DEBUG
-static int
+static enum st_retval
 i_print_name_entry(UChar* key, NameEntry* e, void* arg)
 {
   int i;
@@ -451,7 +451,7 @@ onig_print_names(FILE* fp, regex_t* reg)
 }
 #endif /* ONIG_DEBUG */
 
-static int
+static enum st_retval
 i_free_name_entry(UChar* key, NameEntry* e, void* arg ARG_UNUSED)
 {
   xfree(e->name);
@@ -508,7 +508,7 @@ typedef struct {
   OnigEncoding enc;
 } INamesArg;
 
-static int
+static enum st_retval
 i_names(UChar* key ARG_UNUSED, NameEntry* e, INamesArg* arg)
 {
   int r = (*(arg->func))(e->name,
@@ -541,7 +541,7 @@ onig_foreach_name(regex_t* reg,
   return narg.ret;
 }
 
-static int
+static enum st_retval
 i_renumber_name(UChar* key ARG_UNUSED, NameEntry* e, GroupNumRemap* map)
 {
   int i;
@@ -4922,7 +4922,7 @@ static const struct st_hash_type type_type_cclass_hash = {
 static st_table* OnigTypeCClassTable;
 
 
-static int
+static enum st_retval
 i_free_shared_class(type_cclass_key* key, Node* node, void* arg ARG_UNUSED)
 {
   if (IS_NOT_NULL(node)) {

src/st.c

@@ -404,7 +404,7 @@ st_delete(register st_table *table, register st_data_t *key, st_data_t *value)
 }
 
 int
-st_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
+st_foreach(st_table *table, enum st_retval (*func)(ANYARGS), st_data_t arg)
 {
     st_table_entry *ptr, **last, *tmp;
     enum st_retval retval;
@@ -572,7 +572,7 @@ numhash(long n)
 }
 
 #if 0
-static int
+static enum st_retval
 f(st_data_t key, st_data_t val, st_data_t a)
 {
   printf("tbl=%p key=%s val=%s\n", (st_table*)a, (char*)key, (char*)val);

src/st.h

@@ -74,7 +74,7 @@ int st_delete(st_table *, st_data_t *, st_data_t *);
 int st_delete_safe(st_table *, st_data_t *, st_data_t *, st_data_t);
 int st_insert(st_table *, st_data_t, st_data_t);
 int st_lookup(st_table *, st_data_t, st_data_t *);
-int st_foreach(st_table *, int (*)(ANYARGS), st_data_t);
+int st_foreach(st_table *, enum st_retval (*)(ANYARGS), st_data_t);
 void st_add_direct(st_table *, st_data_t, st_data_t);
 void st_free_table(st_table *);
 void st_cleanup_safe(st_table *, st_data_t);

src/transcode.c

@@ -273,7 +273,7 @@ typedef struct {
     const char *base_enc;
 } search_path_bfs_t;
 
-static int
+static enum st_retval
 transcode_search_path_i(st_data_t key, st_data_t val, st_data_t arg)
 {
     const char *dname = (const char *)key;
@@ -1797,7 +1797,7 @@ struct asciicompat_encoding_t {
     const char *ascii_incompat_name;
 };
 
-static int
+static enum st_retval
 asciicompat_encoding_i(mrb_state *mrb, st_data_t key, st_data_t val, st_data_t arg)
 {
     struct asciicompat_encoding_t *data = (struct asciicompat_encoding_t *)arg;