Static assert initial checkin

[SVN r8381]

static_assert_test.cpp

@@ -0,0 +1,88 @@
+//  (C) Copyright Steve Cleary & John Maddock 2000.
+//  Permission to copy, use, modify, sell and
+//  distribute this software is granted provided this copyright notice appears
+//  in all copies. This software is provided "as is" without express or implied
+//  warranty, and with no claim as to its suitability for any purpose.
+
+//  See http://www.boost.org for most recent version including documentation.
+
+#include <boost/static_assert.hpp>
+
+//
+// all these tests should succeed.
+// some of these tests are rather simplistic (ie useless)
+// in order to ensure that they compile on all platforms.
+//
+
+// Namespace scope
+BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
+BOOST_STATIC_ASSERT(sizeof(char) == 1);
+
+// Function (block) scope
+void f()
+{
+  BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
+  BOOST_STATIC_ASSERT(sizeof(char) == 1);
+}
+
+struct Bob
+{
+  private:  // can be in private, to avoid namespace pollution
+    BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
+    BOOST_STATIC_ASSERT(sizeof(char) == 1);
+  public:
+
+  // Member function scope: provides access to member variables
+  int x;
+  char c;
+  int f()
+  {
+#ifndef _MSC_VER // broken sizeof in VC6
+    BOOST_STATIC_ASSERT(sizeof(x) >= sizeof(short));
+    BOOST_STATIC_ASSERT(sizeof(c) == 1);
+#endif
+    return x;
+  }
+};
+
+
+
+// Template class scope
+template <class Int, class Char>
+struct Bill
+{
+  private:  // can be in private, to avoid namespace pollution
+    BOOST_STATIC_ASSERT(sizeof(Int) > sizeof(char));
+  public:
+
+  // Template member function scope: provides access to member variables
+  Int x;
+  Char c;
+  template <class Int2, class Char2>
+  void f(Int2 , Char2 )
+  {
+    BOOST_STATIC_ASSERT(sizeof(Int) == sizeof(Int2));
+    BOOST_STATIC_ASSERT(sizeof(Char) == sizeof(Char2));
+  }
+};
+
+void test_Bill() // BOOST_CT_ASSERTs are not triggerred until instantiated
+{
+  Bill<int, char> z;
+  //Bill<int, int> bad; // will not compile
+  int i = 3;
+  char ch = 'a';
+  z.f(i, ch);
+  //z.f(i, i); // should not compile
+}
+
+int main()
+{ 
+   test_Bill();
+   return 0; 
+}
+
+
+
+
+