Changeset 5fda714 for src/Common/utility.h

Timestamp:

Sep 7, 2016, 9:30:25 AM (8 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, ctor, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

9f70ab57

Parents:

1f75e2d (diff), f04a8b81 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc

Conflicts:

src/Common/utility.h

File:

• src/Common/utility.h (modified) (1 diff)

src/Common/utility.h

@@ -265 +265 @@
 std::weak_ptr<ThisType> RefCountSingleton<ThisType>::global_instance;
 
+// RAII object to regulate "save and restore" behaviour, e.g.
+// void Foo::bar() {
+//   ValueGuard<int> guard(var); // var is a member of type Foo
+//   var = ...;
+// } // var's original value is restored
+template< typename T >
+struct ValueGuard {
+        T old;
+        T& ref;
+
+        ValueGuard(T& inRef) : old(inRef), ref(inRef) {}
+        ~ValueGuard() { ref = old; }
+};
+
+template< typename T >
+struct reverseIterate_t {
+        T& ref;
+
+        reverseIterate_t( T & ref ) : ref(ref) {}
+
+        typedef typename T::reverse_iterator iterator;
+        iterator begin() { return ref.rbegin(); }
+        iterator end() { return ref.rend(); }
+};
+
+template< typename T >
+reverseIterate_t< T > reverseIterate( T & ref ) {
+        return reverseIterate_t< T >( ref );
+}
+
 #endif // _UTILITY_H