Fix -Wcast-align problems in examples

examples/alloc-hybrid/duk_alloc_hybrid.c

@@ -127,16 +127,16 @@ void *duk_alloc_hybrid_init(void) {
 
 		hdr->alloc_start = p;
 		hdr->alloc_end = p + pool_sizes[i].size * pool_sizes[i].count;
-		hdr->free = (pool_free_entry *) p;
+		hdr->free = (pool_free_entry *) (void *) p;
 		hdr->size = pool_sizes[i].size;
 		hdr->count = pool_sizes[i].count;
 
 		for (j = 0; j < pool_sizes[i].count; j++) {
-			pool_free_entry *ent = (pool_free_entry *) p;
+			pool_free_entry *ent = (pool_free_entry *) (void *) p;
 			if (j == pool_sizes[i].count - 1) {
 				ent->next = (pool_free_entry *) NULL;
 			} else {
-				ent->next = (pool_free_entry *) (p + pool_sizes[i].size);
+				ent->next = (pool_free_entry *) (void *) (p + pool_sizes[i].size);
 			}
 			p += pool_sizes[i].size;
 		}

examples/alloc-logging/duk_alloc_logging.c

@@ -86,7 +86,7 @@ void *duk_realloc_logging(void *udata, void *ptr, duk_size_t size) {
 	 */
 
 	if (ptr) {
-		hdr = (alloc_hdr *) ((unsigned char *) ptr - sizeof(alloc_hdr));
+		hdr = (alloc_hdr *) (void *) ((unsigned char *) ptr - sizeof(alloc_hdr));
 		old_size = hdr->u.sz;
 
 		if (size == 0) {
@@ -132,7 +132,7 @@ void duk_free_logging(void *udata, void *ptr) {
 		write_log("F NULL 0\n");
 		return;
 	}
-	hdr = (alloc_hdr *) ((unsigned char *) ptr - sizeof(alloc_hdr));
+	hdr = (alloc_hdr *) (void *) ((unsigned char *) ptr - sizeof(alloc_hdr));
 	write_log("F %p %ld\n", ptr, (long) hdr->u.sz);
 	free((void *) hdr);
 }

examples/alloc-torture/duk_alloc_torture.c

@@ -84,7 +84,7 @@ void *duk_alloc_torture(void *udata, duk_size_t size) {
 		return NULL;
 	}
 
-	((alloc_hdr *) p)->u.sz = size;
+	((alloc_hdr *) (void *) p)->u.sz = size;
 	p += sizeof(alloc_hdr);
 	memset((void *) p, RED_ZONE_BYTE, RED_ZONE_SIZE);
 	p += RED_ZONE_SIZE;
@@ -108,8 +108,8 @@ void *duk_realloc_torture(void *udata, void *ptr, duk_size_t size) {
 
 	if (ptr) {
 		old_p = (unsigned char *) ptr - sizeof(alloc_hdr) - RED_ZONE_SIZE;
-		old_size = ((alloc_hdr *) old_p)->u.sz;
-		check_red_zone((alloc_hdr *) old_p);
+		old_size = ((alloc_hdr *) (void *) old_p)->u.sz;
+		check_red_zone((alloc_hdr *) (void *) old_p);
 
 		if (size == 0) {
 			memset((void *) old_p, WIPE_BYTE, old_size + sizeof(alloc_hdr) + 2 * RED_ZONE_SIZE);
@@ -122,7 +122,7 @@ void *duk_realloc_torture(void *udata, void *ptr, duk_size_t size) {
 				return NULL;
 			}
 
-			((alloc_hdr *) p)->u.sz = size;
+			((alloc_hdr *) (void *) p)->u.sz = size;
 			p += sizeof(alloc_hdr);
 			memset((void *) p, RED_ZONE_BYTE, RED_ZONE_SIZE);
 			p += RED_ZONE_SIZE;
@@ -150,7 +150,7 @@ void *duk_realloc_torture(void *udata, void *ptr, duk_size_t size) {
 				return NULL;
 			}
 
-			((alloc_hdr *) p)->u.sz = size;
+			((alloc_hdr *) (void *) p)->u.sz = size;
 			p += sizeof(alloc_hdr);
 			memset((void *) p, RED_ZONE_BYTE, RED_ZONE_SIZE);
 			p += RED_ZONE_SIZE;
@@ -174,9 +174,9 @@ void duk_free_torture(void *udata, void *ptr) {
 	}
 
 	p = (unsigned char *) ptr - sizeof(alloc_hdr) - RED_ZONE_SIZE;
-	old_size = ((alloc_hdr *) p)->u.sz;
+	old_size = ((alloc_hdr *) (void *) p)->u.sz;
 
-	check_red_zone((alloc_hdr *) p);
+	check_red_zone((alloc_hdr *) (void *) p);
 	memset((void *) p, WIPE_BYTE, old_size + sizeof(alloc_hdr) + 2 * RED_ZONE_SIZE);
 	free((void *) p);
 }