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copied!<ol> <li><a href="https://en.wikibooks.org/wiki/More_C++_Idioms/Final_Class" rel="nofollow noreferrer">Final Class</a>: C++11 provides the <code>final</code> specifier to prevent class derivation</li> <li>C++11 lambdas substantially reduce the need for named function object (functor) classes.</li> <li><a href="https://en.wikibooks.org/wiki/More_C++_Idioms/Move_Constructor" rel="nofollow noreferrer">Move Constructor</a>: The magical ways in which <code>std::auto_ptr</code> works are no longer needed due to first-class support for rvalue references.</li> <li><a href="https://en.wikibooks.org/wiki/More_C++_Idioms/Safe_bool" rel="nofollow noreferrer">Safe bool</a>: This was mentioned earlier. Explicit operators of C++11 obviate this very common C++03 idiom.</li> <li><a href="https://en.wikibooks.org/wiki/More_C++_Idioms/Shrink-to-fit" rel="nofollow noreferrer">Shrink-to-fit</a>: Many C++11 STL containers provide a <code>shrink_to_fit()</code> member function, which should eliminate the need swapping with a temporary.</li> <li><a href="https://en.wikibooks.org/wiki/More_C++_Idioms/Temporary_Base_Class" rel="nofollow noreferrer">Temporary Base Class</a>: Some old C++ libraries use this rather complex idiom. With move semantics it's no longer needed.</li> <li><a href="https://en.wikibooks.org/wiki/More_C++_Idioms/Type_Safe_Enum" rel="nofollow noreferrer">Type Safe Enum</a> Enumerations are very safe in C++11. </li> <li><a href="https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Requiring_or_Prohibiting_Heap-based_Objects" rel="nofollow noreferrer">Prohibiting heap allocation</a>: The <code>= delete</code> syntax is a much more direct way of saying that a particular functionality is explicitly denied. This is applicable to preventing heap allocation (i.e., <code>=delete</code> for member <code>operator new</code>), preventing copies, assignment, etc.</li> <li><a href="https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Type_Generator" rel="nofollow noreferrer">templated typedef</a>: <a href="https://en.wikipedia.org/wiki/C%2B%2B11#Template_aliases" rel="nofollow noreferrer">Alias templates</a> in C++11 reduce the need for simple templated typedefs. However, complex type generators still need meta functions.</li> <li>Some numerical compile-time computations, such as fibonacci can be easily replaced using <a href="http://www.stroustrup.com/C++11FAQ.html#constexpr" rel="nofollow noreferrer">Generalized constant expressions</a></li> <li><a href="http://www.boost.org/libs/utility/utility.htm#result_of" rel="nofollow noreferrer"><code>result_of</code></a>: Uses of class template <code>result_of</code> should be replaced with <code>decltype</code>. I think <code>result_of</code> uses <code>decltype</code> when it is available.</li> <li><a href="http://www.stroustrup.com/C++11FAQ.html#member-init" rel="nofollow noreferrer">In-class member initializers</a> save typing for default initialization of non-static members with default values.</li> <li>In new C++11 code <code>NULL</code> should be redefined as <code>nullptr</code> but see <a href="http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/STL11-Magic-Secrets" rel="nofollow noreferrer">STL's talk</a> to learn why they decided against it.</li> <li><a href="https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Expression-template" rel="nofollow noreferrer">Expression Template</a> fanatics are delighted to have the <a href="http://www.stroustrup.com/C++11FAQ.html#suffix-return" rel="nofollow noreferrer">trailing return type</a> function syntax in C++11. No more 30-line long return types!</li> </ol> <p>I think I'll stop there!</p>

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