Include examples in CI tests

Also fix and update examples and documentation where required
This allows to make sure examples are actually runnable avoiding them to
become outdated

doc/example/patterns_async_call.cpp

@@ -7,7 +7,7 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 
 //[ async_call_problem
-namespace
+namespace mock_test
 {
     class base_class
     {
@@ -17,6 +17,7 @@ namespace
 
     class my_class
     {
+        base_class& b;
     public:
         explicit my_class( base_class& );
 
@@ -25,14 +26,23 @@ namespace
 }
 //]
 
+namespace mock_test
+{
+    my_class::my_class( base_class& b): b(b){}
+    void my_class::flush()
+    {
+        static int secret_value = 7;
+        if(--secret_value == 0)
+            b.method();
+    }
+}
+
 //[ async_call_solution
-#define BOOST_AUTO_TEST_MAIN
 #include <boost/test/auto_unit_test.hpp>
-#include <boost/lambda/lambda.hpp>
 #include <boost/thread.hpp>
 #include <turtle/mock.hpp>
 
-namespace
+namespace mock_test
 {
     template< typename F >
     void check( bool& condition, F flush, int attempts = 100, int sleep = 100 )
@@ -49,25 +59,15 @@ namespace
     {
         MOCK_METHOD( method, 0 )
     };
-    void set_bool(bool& b)
-    {
-        b = true;
-    }
 }
 
 BOOST_AUTO_TEST_CASE( method_is_called )
 {
+    using namespace mock_test;
     mock_base_class m;
     my_class c( m );
     bool done = false;
-    // when method is called it will set done to true
-    // Note: Boost 1.57 introduced a bug preventing usage of the lambda with clang in C++98
-    // See: https://svn.boost.org/trac10/ticket/10785
-#if defined(BOOST_CLANG) && (BOOST_VERSION >= 105700)
-    MOCK_EXPECT( m.method ).once().calls( std::bind(&set_bool, done) );
-#else
-    MOCK_EXPECT( m.method ).once().calls( boost::lambda::var( done ) = true );
-#endif
-    check( done, std::bind( &my_class::flush, &c ) );                        // just wait on done, flushing from time to time
+    MOCK_EXPECT( m.method ).once().calls( [&done](){ done = true; } );
+    check( done, [&c](){ c.flush(); } );                        // just wait on done, flushing from time to time
 }
 //]