template的一个重要使用方法就是template meta programming,它利用编译器对于template的解释是静态的这一特性,让编译器在编译时做计算,可以有效的提高程序的运行速度。有关于 template meta programming的记载,最早见于Erwin Unruh,他在1994年写了一个用template计算质数的程序。我希望通过这篇文章介绍一些TMP的基本技巧和应...
简要地解释元编程(Meta Programming),元编程类似一个解释器,比如C/C++都是生成了汇编最终生成机器码让计算机运行的。 而模板元编程(TMP)是在C++的体系内,模板实例化后会变成新的代码,但这份新的代码仍然是C++代码,模板的优点就像它的名字一样,套个不同的参数能够刻画出一组组功能相似类型又不同的类或函数。比如...
template class vector: public _Bvector_base { public: typedef bool value_type; .../usr/include/c++/3.3.2/bits/std vector.h /usr/include/c++/3.3.2/bits/std bvector.hC++ Template Meta ProgrammingIntroductionTemplate Metaprogram- ming A Bad Example A Good Example ConclusionsWhat Is ...
c++ templates template-specialization template-meta-programming Raj*_*esh lucky-day 0推荐指数 1解决办法 188查看次数 模板元编程为此? struct findCategoryByName { string name; bool operator()(const category& a) { return (a.name == name); } }; struct findEntryByName { string name; bool ope...
meta_container<void, void, void, void> { public: typedef void type; static const int size = 0; }; // 访问元容器中的数据 template<typename C, unsigned i> class get { public: static_assert(i<C::size, "get<C,i>: index exceed num"); // C++11 引入静态断言 typedef typename get<C...
Reflection Support by means of template Meta-programmingGuiseppe Attardi, Antonio Cisterninohttp://lcgapp.cern.ch/project/architecture/ReflectionPaper.pdf Static Data Structure: Reconciling Template Meta-programming and Generic ProgrammingMichael C. Burton, William G. Griswold, Andrew D. McCulloch, Gr...
{ winrt::weak_ref<Me> m_weakSelf; }; // msvc type_traits(1173,28): error C2139: 'Me': an undefined class is not allowed as an argument to compiler intrinsic type trait '__is_base_of' test.h(16,8): message : see declaration of 'Me' ...
机译:为C ++模板元程序实现monad 2. C++ lambda expressions and closures [J] . Jaakko Jaervi, John Freeman Science of Computer Programming . 2010,第9期 机译:C ++ Lambda表达式和闭包 3. Interval arithmetic using expression templates, template meta programming and the upcoming C++ standard [...
Therefore, MetaC++ functions can take types as arguments and return types. Those are the ones that are most useful in real-life C++ programming. Here s an example that is simple but important and useful nonetheless. It is a MetaC++ function that solves the reference-to-reference problem, ...
More and more C++ applications use template metaprograms directly or indirectly by using libraries based on them. Since C++ template metaprograms follow the functional paradigm, the well known and widely used tools of functional programming should be available for developers of C++ template metaprograms...