Initial Boost.Function commit

[SVN r10372]

test/allocator_test.cpp

@@ -0,0 +1,73 @@
+#define BOOST_INCLUDE_MAIN
+#include <boost/test/test_tools.hpp>
+#include <cassert>
+#include <functional>
+#include <boost/function.hpp>
+
+using namespace std;
+using namespace boost;
+
+static int alloc_count = 0;
+static int dealloc_count = 0;
+
+template<typename T>
+struct counting_allocator : public std::allocator<T>
+{
+  template<typename U>
+  struct rebind
+  {
+    typedef counting_allocator<U> other;
+  };
+
+  
+  T* allocate(std::size_t n)
+  {
+    alloc_count++;
+    return std::allocator<T>::allocate(n);
+  }
+
+  void deallocate(T* p, std::size_t n)
+  {
+    dealloc_count++;
+    std::allocator<T>::deallocate(p, n);
+  }
+};
+
+static int do_minus(int x, int y) { return x-y; }
+
+struct DoNothing
+{
+  void operator()() const {}
+};
+
+static void do_nothing() {}
+
+int
+test_main(int, char*[])
+{
+  function<int, int, int>::allocator< counting_allocator<int> >::type f; 
+  f = plus<int>();
+  f.clear();
+  BOOST_TEST(alloc_count == 1);
+  BOOST_TEST(dealloc_count == 1);
+
+  alloc_count = 0;
+  dealloc_count = 0;
+  f = &do_minus;
+  f.clear();
+
+  function<void>::allocator< counting_allocator<int> >::type fv;
+  alloc_count = 0;
+  dealloc_count = 0;
+  fv = DoNothing();
+  fv.clear();
+  BOOST_TEST(alloc_count == 1);
+  BOOST_TEST(dealloc_count == 1);
+  
+  alloc_count = 0;
+  dealloc_count = 0;
+  fv = &do_nothing;
+  fv.clear();
+
+  return 0;
+}