ext/fiddle/pointer.c in fiddle-1.1.5 vs ext/fiddle/pointer.c in fiddle-1.1.6

@@ -825,10 +825,11 @@
  * Write bytes in +str+ to the location pointed to by +address+.
  */
 static VALUE
 rb_fiddle_ptr_write_mem(VALUE klass, VALUE addr, VALUE str)
 {
-    memcpy(NUM2PTR(addr), StringValuePtr(str), RSTRING_LEN(str));
+    const char *ptr = StringValuePtr(str);
+    memcpy(NUM2PTR(addr), ptr, RSTRING_LEN(str));
     return str;
 }
 
 void
 Init_fiddle_pointer(void)