StringValuePtr may change the val

kou · kou · commit bddca7c895e2 · 2021-06-17T13:40:11.000+09:00
diff --git a/ext/fiddle/pointer.c b/ext/fiddle/pointer.c
@@ -770,6 +770,7 @@ rb_fiddle_ptr_s_to_ptr(VALUE self, VALUE val)
     }
     else if (RTEST(rb_obj_is_kind_of(val, rb_cString))){
 	char *str = StringValuePtr(val);
+        wrap = val;
 	ptr = rb_fiddle_ptr_new(str, RSTRING_LEN(val), NULL);
     }
     else if ((vptr = rb_check_funcall(val, id_to_ptr, 0, 0)) != Qundef){

Original file line number	Diff line number	Diff line change
`@@ -770,6 +770,7 @@ rb_fiddle_ptr_s_to_ptr(VALUE self, VALUE val)`
`770`	`770`	`}`
`771`	`771`	`else if (RTEST(rb_obj_is_kind_of(val, rb_cString))){`
`772`	`772`	`char *str = StringValuePtr(val);`
	`773`	`+ wrap = val;`
`773`	`774`	`ptr = rb_fiddle_ptr_new(str, RSTRING_LEN(val), NULL);`
`774`	`775`	`}`
`775`	`776`	`else if ((vptr = rb_check_funcall(val, id_to_ptr, 0, 0)) != Qundef){`