Examples/documentation update

[SVN r54842]

doc/diagnostic_information.html

@@ -64,7 +64,7 @@ else return &lt;unspecified-string-value&gt;;</pre>
 <div class="RenoIncludeDIV"><h4>Example:</h4>
 <p>this is a possible output from the <span class="RenoLink">diagnostic_information</span> function, as used in <i>libs/exception/example/example_io.cpp:</i></p>
 <pre>example_io.cpp(70): Throw in function class boost::shared_ptr&lt;struct _iobuf&gt; __cdecl my_fopen(const char *,const char *)
-Dynamic exception type: class boost::exception_detail::clone_impl&lt;class fopen_error&gt;
+Dynamic exception type: class boost::exception_detail::clone_impl&lt;struct fopen_error&gt;
 std::exception::what: example_io error
 [struct boost::<span class="RenoLink"><a href="errinfo_api_function.html">errinfo_api_function</a></span>_ *] = fopen
 [struct boost::<span class="RenoLink"><a href="errinfo_errno.html">errinfo_errno</a></span>_ *] = 2, "No such file or directory"

doc/tutorial_diagnostic_information.html

@@ -48,7 +48,7 @@ g()
 <div class="RenoIncludeDIV"><h4>Example:</h4>
 <p>this is a possible output from the <span class="RenoLink"><a href="diagnostic_information.html">diagnostic_information</a></span> function, as used in <i>libs/exception/example/example_io.cpp:</i></p>
 <pre>example_io.cpp(70): Throw in function class boost::shared_ptr&lt;struct _iobuf&gt; __cdecl my_fopen(const char *,const char *)
-Dynamic exception type: class boost::exception_detail::clone_impl&lt;class fopen_error&gt;
+Dynamic exception type: class boost::exception_detail::clone_impl&lt;struct fopen_error&gt;
 std::exception::what: example_io error
 [struct boost::<span class="RenoLink"><a href="errinfo_api_function.html">errinfo_api_function</a></span>_ *] = fopen
 [struct boost::<span class="RenoLink"><a href="errinfo_errno.html">errinfo_errno</a></span>_ *] = 2, "No such file or directory"

doc/tutorial_exception_ptr.html

@@ -32,7 +32,7 @@
 #include <stdio.h>
 #include <errno.h>
 
-class file_read_error: public boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
+struct file_read_error: virtual boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
 
 void
 file_read( FILE * f, void * buffer, size_t size )

doc/tutorial_transporting_data.html

@@ -34,7 +34,7 @@
 
 typedef boost::<span class="RenoLink"><a href="error_info.html">error_info</a></span>&lt;struct tag_my_info,int&gt; my_info; //(1)
 
-class my_error: public boost::<span class="RenoLink"><a href="exception.html">exception</a></span>, public std::exception { }; //(2)
+struct my_error: virtual boost::<span class="RenoLink"><a href="exception.html">exception</a></span>, virtual std::exception { }; //(2)
 
 void
 f()
@@ -73,12 +73,12 @@ file_read( FILE * f, void * buffer, size_t size )
     }</pre>
 <p>How can the file_read function pass a file name to the exception type constructor? All it has is a FILE handle.</p>
 <p>Using boost::<span class="RenoLink"><a href="exception.html">exception</a></span> allows us to free the file_read function from the burden of storing the file name in exceptions it throws:</p>
-<pre><span class="RenoLink"><a href="boost_exception_all_hpp.html">boost/exception/all.hpp</a></span>&gt;
+<pre>#include &lt;<span class="RenoLink"><a href="boost_exception_all_hpp.html">boost/exception/all.hpp</a></span>&gt;
 #include &lt;boost/shared_ptr.hpp&gt;
 #include &lt;stdio.h&gt;
 #include &lt;errno.h&gt;
 
-class file_read_error: public boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
+struct file_read_error: virtual boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
 
 void
 file_read( FILE * f, void * buffer, size_t size )
@@ -127,7 +127,7 @@ parse_file( char const * file_name )
 
 typedef boost::<span class="RenoLink"><a href="http://www.boost.org/libs/tuple/doc/tuple_users_guide.html">tuple</a></span>&lt;boost::<span class="RenoLink"><a href="errinfo_api_function.html">errinfo_api_function</a></span>,boost::<span class="RenoLink"><a href="errinfo_errno.html">errinfo_errno</a></span>&gt; clib_failure;
 
-class file_open_error: public boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
+struct file_open_error: virtual boost::<span class="RenoLink"><a href="exception.html">exception</a></span> { };
 
 boost::shared_ptr&lt;FILE&gt;
 file_open( char const * name, char const * mode )

example/cloning_1.cpp

@@ -10,7 +10,7 @@
 #include <stdio.h>
 #include <errno.h>
 
-class file_read_error: public boost::exception { };
+struct file_read_error: virtual boost::exception { };
 
 void
 file_read( FILE * f, void * buffer, size_t size )

example/error_info_1.cpp

@@ -11,7 +11,7 @@
 
 typedef boost::error_info<struct tag_my_info,int> my_info; //(1)
 
-class my_error: public boost::exception, public std::exception { }; //(2)
+struct my_error: virtual boost::exception, virtual std::exception { }; //(2)
 
 void
 f()

example/error_info_2.cpp

@@ -12,7 +12,7 @@
 
 //
 
-class file_read_error: public boost::exception { };
+struct file_read_error: virtual boost::exception { };
 
 void
 file_read( FILE * f, void * buffer, size_t size )

example/example_io.cpp

@@ -29,8 +29,8 @@ size_t const data_size = sizeof(data);
 
 class
 error: //Base for all exception objects we throw.
-    public std::exception,
+    public virtual std::exception,
-    public boost::exception
+    public virtual boost::exception
     {
     public:
 
@@ -47,14 +47,12 @@ error: //Base for all exception objects we throw.
         }
     };
 
-class open_error: public error { };
+struct open_error: virtual error { };
-class read_error: public error { };
+struct read_error: virtual error { };
-class write_error: public error { };
+struct write_error: virtual error { };
-
+struct fopen_error: virtual open_error { };
-class fopen_error: public open_error { };
+struct fread_error: virtual read_error { };
-class fread_error: public read_error { };
+struct fwrite_error: virtual write_error { };
-class fwrite_error: public write_error { };
-
 
 boost::shared_ptr<FILE>
 my_fopen( char const * name, char const * mode )

example/info_tuple.cpp

@@ -17,7 +17,7 @@
 
 typedef boost::tuple<boost::errinfo_api_function,boost::errinfo_errno> clib_failure;
 
-class file_open_error: public boost::exception { };
+struct file_open_error: virtual boost::exception { };
 
 boost::shared_ptr<FILE>
 file_open( char const * name, char const * mode )