diff options
Diffstat (limited to 'www/compatibility.html')
| -rw-r--r-- | www/compatibility.html | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/www/compatibility.html b/www/compatibility.html index 2102ccca7e1db..725c52ff4bbc6 100644 --- a/www/compatibility.html +++ b/www/compatibility.html @@ -2,10 +2,10 @@ "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> - <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /> + <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Language Compatibility</title> - <link type="text/css" rel="stylesheet" href="menu.css" /> - <link type="text/css" rel="stylesheet" href="content.css" /> + <link type="text/css" rel="stylesheet" href="menu.css"> + <link type="text/css" rel="stylesheet" href="content.css"> <style type="text/css"> </style> </head> @@ -47,7 +47,7 @@ <li><a href="#c_variables-class">C variables in @class or @protocol</a></li> </ul> </li> - <li><a href="#c++">C++ compatibility</a> + <li><a href="#cxx">C++ compatibility</a> <ul> <li><a href="#vla">Variable-length arrays</a></li> <li><a href="#dep_lookup">Unqualified lookup in templates</a></li> @@ -60,13 +60,13 @@ <li><a href="#param_name_lookup">Parameter name lookup</a></li> </ul> </li> - <li><a href="#c++11">C++11 compatibility</a> + <li><a href="#cxx11">C++11 compatibility</a> <ul> <li><a href="#deleted-special-func">Deleted special member functions</a></li> </ul> </li> - <li><a href="#objective-c++">Objective-C++ compatibility</a> + <li><a href="#objective-cxx">Objective-C++ compatibility</a> <ul> <li><a href="#implicit-downcasts">Implicit downcasts</a></li> </ul> @@ -77,7 +77,7 @@ </ul> <!-- ======================================================================= --> -<h2 id="c">C compatibility</h3> +<h2 id="c">C compatibility</h2> <!-- ======================================================================= --> <!-- ======================================================================= --> @@ -318,7 +318,7 @@ add $4, (%rax) this makes your code more clear and is compatible with both GCC and Clang.</p> <!-- ======================================================================= --> -<h2 id="objective-c">Objective-C compatibility</h3> +<h2 id="objective-c">Objective-C compatibility</h2> <!-- ======================================================================= --> <!-- ======================================================================= --> @@ -409,7 +409,7 @@ extern int c; // allowed </pre> <!-- ======================================================================= --> -<h2 id="c++">C++ compatibility</h3> +<h2 id="cxx">C++ compatibility</h2> <!-- ======================================================================= --> <!-- ======================================================================= --> @@ -761,7 +761,7 @@ void f(int a, int a); <p>Clang diagnoses this error (where the parameter name has been redeclared). To fix this problem, rename one of the parameters.</p> <!-- ======================================================================= --> -<h2 id="c++11">C++11 compatibility</h2> +<h2 id="cxx11">C++11 compatibility</h2> <!-- ======================================================================= --> <!-- ======================================================================= --> @@ -769,7 +769,7 @@ void f(int a, int a); <!-- ======================================================================= --> <p>In C++11, the explicit declaration of a move constructor or a move -assignment operator within a class disables the implicit declaration +assignment operator within a class deletes the implicit declaration of the copy constructor and copy assignment operator. This change came fairly late in the C++11 standardization process, so early implementations of C++11 (including Clang before 3.0, GCC before 4.7, @@ -778,22 +778,23 @@ accept this ill-formed code:</p> <pre> struct X { - X(X&&); <i>// suppresses implicit copy constructor</i> + X(X&&); <i>// deletes implicit copy constructor:</i> + <i>// X(const X&) = delete;</i> }; void f(X x); void g(X x) { - f(x); <i>// error: X has no copy constructor</i> + f(x); <i>// error: X has a deleted copy constructor</i> } </pre> -<p>This affects some C++11 code, including Boost's popular <a +<p>This affects some early C++11 code, including Boost's popular <a href="http://www.boost.org/doc/libs/release/libs/smart_ptr/shared_ptr.htm"><tt>shared_ptr</tt></a> up to version 1.47.0. The fix for Boost's <tt>shared_ptr</tt> is <a href="https://svn.boost.org/trac/boost/changeset/73202">available here</a>.</p> <!-- ======================================================================= --> -<h2 id="objective-c++">Objective-C++ compatibility</h2> +<h2 id="objective-cxx">Objective-C++ compatibility</h2> <!-- ======================================================================= --> <!-- ======================================================================= --> @@ -859,7 +860,7 @@ int cls; @implementation I - (int) Meth { return I.class; } @end -<pre> +</pre> <p>Use explicit message-send syntax instead, i.e. <code>[I class]</code>.</p> |