fix: signed/unsigned types

1 files changed, 4 insertions, 4 deletions

diff --git a/hashtab.c b/hashtab.c
index e53da51..ea097ad 100644
--- a/hashtab.c
+++ b/hashtab.c
@@ -22,7 +22,7 @@ static unsigned long
 hash_key(const unsigned char *str)
 {
         unsigned long hash = 5381;
-        int           c;
+        unsigned int  c;
 
         while ( (c = *str++) != '\0' )
                 hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
@@ -33,7 +33,7 @@ hash_key(const unsigned char *str)
 void
 hash_init(struct hash_tab *ht)
 {
-        for ( int i = 0; i != NELEM(ht->table); ++i )
+        for ( size_t i = 0; i != NELEM(ht->table); ++i )
                 ht->table[i] = NULL;
 }
 
@@ -114,7 +114,7 @@ hash_apply(struct hash_tab *ht, void (*visit)(const char *key, T data, void *cl)
 {
         struct hash_item *item;
 
-        for ( int i = 0; i != NELEM(ht->table); ++i )
+        for ( size_t i = 0; i != NELEM(ht->table); ++i )
                 for ( item = ht->table[i]; item; item = item->next )
                         visit(item->key, item->data, cl);
 }
@@ -124,7 +124,7 @@ hash_free(struct hash_tab *ht)
 {
         struct hash_item *p, *next;
 
-        for ( int i = 0; i != NELEM(ht->table); ++i ) {
+        for ( size_t i = 0; i != NELEM(ht->table); ++i ) {
                 for ( p = ht->table[i]; p; p = next ) {
                         next = p->next;
                         free(p->key);