src/share/vm/utilities/globalDefinitions.hpp

*** 1252,1261 ****
--- 1252,1268 ----
  // "to" should be greater than "from."
  inline intx byte_size(void* from, void* to) {
    return (address)to - (address)from;
  }
  
+ template <class T>
+ void swap(T& a, T& b) {
+   T t(a);
+   a = b;
+   b = t;
+ }
+ 
  //----------------------------------------------------------------------------------------------------
  // Avoid non-portable casts with these routines (DEPRECATED)
  
  // NOTE: USE Bytes class INSTEAD WHERE POSSIBLE
  //       Bytes is optimized machine-specifically and may be much faster then the portable routines below.