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Metaprogramming is a programming technique in which computer programs have the ability to treat other programs as their data. It means that a program can be designed to read, generate, analyse or transform other programs, and even modify itself while running.
Metaprogramação é a programação de programas que escrevem ou manipulam outros programas (ou a si próprios) assim como seus dados, ou que fazem parte do trabalho em tempo de compilação. Em alguns casos, isso permite que os programadores sejam mais produtivos ao evitar que parte do código seja escrita manualmente.
Metaprogramming refers to a variety of ways a program has knowledge of itself or can manipulate itself. In languages like C#, reflection is a form of metaprogramming since the program can examine information about itself.
However, when C++ programmers talk about metaprogramming, they usually refer to template metaprogramming specifically (which has nothing to do with QT's meta-object system). Several other flavors exist: Some languages allow youto do metaprogramming at runtime (manipulating or extending types while the program is running), and QT's approach ...
Template metaprogramming ( TMP) is a metaprogramming technique in which templates are used by a compiler to generate temporary source code, which is merged by the compiler with the rest of the source code and then compiled. The output of these templates can include compile-time constants, data structures, and complete functions.
13 de set. de 2021 · Metaprogramming. Programs typically read input data, operate on that data and give some output data. Metaprograms read another program, manipulate that program and return a modified program. Sometimes a metaprogram can change its own behaviour by updating itself. The act of writing metaprograms is called metaprogramming.
Some use cases for this pattern are static polymorphism and other metaprogramming techniques such as those described by Andrei Alexandrescu in Modern C++ Design. It also figures prominently in the C++ implementation of the Data, Context, and Interaction paradigm.
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