remove useless casts (type*) xzalloc(...)

archival/dpkg.c

@@ -582,7 +582,7 @@ static unsigned fill_package_struct(char *control_buffer)
 		"Conflicts", "Suggests", "Recommends", "Enhances", 0
 	};
 
-	common_node_t *new_node = (common_node_t *) xzalloc(sizeof(common_node_t));
+	common_node_t *new_node = xzalloc(sizeof(common_node_t));
 	char *field_name;
 	char *field_value;
 	int field_start = 0;
@@ -981,7 +981,7 @@ static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
 					package_hashtable[package_num]->edge[j]->operator);
 				if (package_hashtable[conflicts_package_num] == NULL) {
 					/* create a new package */
-					common_node_t *new_node = (common_node_t *) xzalloc(sizeof(common_node_t));
+					common_node_t *new_node = xzalloc(sizeof(common_node_t));
 					new_node->name = package_hashtable[package_num]->edge[j]->name;
 					new_node->version = package_hashtable[package_num]->edge[j]->version;
 					package_hashtable[conflicts_package_num] = new_node;

archival/gzip.c

@@ -92,7 +92,7 @@ typedef unsigned long ulg;
 
 #  define DECLARE(type, array, size)  static type * array
 #  define ALLOC(type, array, size) { \
-      array = (type*)xzalloc((size_t)(((size)+1L)/2) * 2*sizeof(type)); \
+      array = xzalloc((size_t)(((size)+1L)/2) * 2*sizeof(type)); \
    }
 #  define FREE(array) {free(array), array=NULL;}
 

archival/libunarchive/decompress_unzip.c

@@ -275,7 +275,7 @@ int huft_build(unsigned int *b, const unsigned int n,
 				ws[htl+1] = w + j;	/* set bits decoded in stack */
 
 				/* allocate and link in new table */
-				q = (huft_t *) xzalloc((z + 1) * sizeof(huft_t));
+				q = xzalloc((z + 1) * sizeof(huft_t));
 				*t = q + 1;	/* link to list for huft_free() */
 				t = &(q->v.t);
 				u[htl] = ++q;	/* table starts after link */

editors/awk.c

@@ -469,9 +469,9 @@ static xhash *hash_init(void)
 {
 	xhash *newhash;
 
-	newhash = (xhash *)xzalloc(sizeof(xhash));
+	newhash = xzalloc(sizeof(xhash));
 	newhash->csize = FIRST_PRIME;
-	newhash->items = (hash_item **)xzalloc(newhash->csize * sizeof(hash_item *));
+	newhash->items = xzalloc(newhash->csize * sizeof(hash_item *));
 
 	return newhash;
 }
@@ -500,7 +500,7 @@ static void hash_rebuild(xhash *hash)
 		return;
 
 	newsize = PRIMES[hash->nprime++];
-	newitems = (hash_item **)xzalloc(newsize * sizeof(hash_item *));
+	newitems = xzalloc(newsize * sizeof(hash_item *));
 
 	for (i=0; i<hash->csize; i++) {
 		hi = hash->items[i];
@@ -988,7 +988,7 @@ static node *new_node(uint32_t info)
 {
 	node *n;
 
-	n = (node *)xzalloc(sizeof(node));
+	n = xzalloc(sizeof(node));
 	n->info = info;
 	n->lineno = lineno;
 	return n;
@@ -1098,8 +1098,7 @@ static node *parse_expr(uint32_t iexp)
 					break;
 
 				  case TC_REGEXP:
-					mk_re_node(t.string, cn,
-									(regex_t *)xzalloc(sizeof(regex_t)*2));
+					mk_re_node(t.string, cn, xzalloc(sizeof(regex_t)*2));
 					break;
 
 				  case TC_FUNCTION:
@@ -1585,7 +1584,7 @@ static void hashwalk_init(var *v, xhash *array)
 		free(v->x.walker);
 
 	v->type |= VF_WALK;
-	w = v->x.walker = (char **)xzalloc(2 + 2*sizeof(char *) + array->glen);
+	w = v->x.walker = xzalloc(2 + 2*sizeof(char *) + array->glen);
 	*w = *(w+1) = (char *)(w + 2);
 	for (i=0; i<array->csize; i++) {
 		hi = array->items[i];

findutils/grep.c

@@ -360,7 +360,7 @@ int grep_main(int argc, char **argv)
 		lines_before = 0;
 		lines_after = 0;
 	} else if (lines_before > 0)
-		before_buf = (char **)xzalloc(lines_before * sizeof(char *));
+		before_buf = xzalloc(lines_before * sizeof(char *));
 #else
 	/* with auto sanity checks */
 	opt_complementary = "H-h:e::f::c-n:q-n:l-n";

networking/traceroute.c

@@ -1118,7 +1118,7 @@ traceroute_main(int argc, char *argv[])
 	xsetgid(getgid());
 	xsetuid(getuid());
 
-	outip = (struct ip *)xzalloc(packlen);
+	outip = xzalloc(packlen);
 
 	outip->ip_v = IPVERSION;
 	if (tos_str)
@@ -1133,7 +1133,6 @@ traceroute_main(int argc, char *argv[])
 #if ENABLE_FEATURE_TRACEROUTE_USE_ICMP
 	if (useicmp) {
 		outip->ip_p = IPPROTO_ICMP;
-
 		outicmp = (struct icmp *)outp;
 		outicmp->icmp_type = ICMP_ECHO;
 		outicmp->icmp_id = htons(ident);
@@ -1142,7 +1141,6 @@ traceroute_main(int argc, char *argv[])
 #endif
 	{
 		outip->ip_p = IPPROTO_UDP;
-
 		outudp = (struct udphdr *)outp;
 		outudp->source = htons(ident);
 		outudp->len = htons((uint16_t)(packlen - (sizeof(*outip) + optlen)));

shell/lash.c

@@ -1377,7 +1377,7 @@ static int busy_loop(FILE * input)
 			}
 			else {
 				free(command);
-				command = (char *) xzalloc(BUFSIZ);
+				command = xzalloc(BUFSIZ);
 				next_command = NULL;
 			}
 		} else {