@@ -341,14 +341,17 @@ mrb_str_reverse_bang(mrb_state *mrb, mrb_value str)
{
mrb_int utf8_len = mrb_utf8_strlen(str, -1);
if (utf8_len > 1) {
- mrb_int len = RSTRING_LEN(str);
- char *buf = (char *)mrb_malloc(mrb, (size_t)len);
- unsigned char* p = (unsigned char*)buf;
- unsigned char* e = (unsigned char*)buf + len;
- unsigned char* r;
+ mrb_int len;
+ char *buf;
+ unsigned char *p, *e, *r;
- memcpy(buf, RSTRING_PTR(str), len);
mrb_str_modify(mrb, mrb_str_ptr(str));
+ len = RSTRING_LEN(str);
+ buf = (char *)mrb_malloc(mrb, (size_t)len);
+ p = (unsigned char*)buf;
+ e = (unsigned char*)buf + len;
+
+ memcpy(buf, RSTRING_PTR(str), len);
r = (unsigned char*)RSTRING_PTR(str) + len;
while (p<e) {