Your contribution will go a long way in helping us serve. Metaprogramming is programming that manipulates programs as data. Template metaprogramming is in fact turingcomplete, meaning that any computation expressible by a computer program can be computed, in some form, by a template metaprogram. In this tutorial, ill cover decorators, class decorators. In some languages, the difference between programming and metaprogramming isnt all that significant. C is ideally suited to modern computers and modern programming. This allows computations to be performed once at compile time rather than at each run time. Metaprogramming with templates yes, the code checks whether the number is a prime number template struct isprime2 static const int resisprime2 res.
Metaprogramming is a programming technique in which computer programs have the ability to treat other programs as their data. Metaprogramming or more specifically, template metaprogramming is the practice of using templates to create constants, functions, or data structures at compiletime. David beazley some of the most significant changes in python 3 are related to metaprogramming. Metaprogramming allows programs to create methods on the fly instead of having to define them in the program itself. Note that in this case the metaprogram yacc is written in a language c which does not directly support the. 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 use of templates can be thought of as compiletime polymorphism.
Its aim is to teach c to a beginner, but with enough of the details so as not be outgrown as the years go by. Work through a list of examples of metaprogramming, including a practical approach to build code that writes code using the ruby programming language. Learn why metaprogramming is necessary and look at some of the components of metaprogramming textual macro languages, specialized code generators. Tutorial loosely based on content in python cookbook, 3rd ed. In this article, they attempt to make amends, by helping programmers eschew cleverness. Template metaprogramming is much more fun than mere generic classes. An introduction to metaprogramming for scientific computing dr conrad sanderson senior research scientist version 1. Lisp dialects, for example, use the same sexpression representation for code and data, a property called homoiconicity. Levels vvii consist of programming done in the brain on a biological and unconscious level. One of the most underused programming techniques is writing programs that generate programs or program parts. Note that the resulting class must be inserted into the global namespace, otherwise.
Levels iiv consist of biological and neurological signals, autonomous and automatic. Pdf c template metaprogramming download full pdf book. Programming and metaprogramming in the human biocomputer, john c. Michele and david feel, in part, responsible for some excesses of cleverness in python metaclasses. With help from the excellent boost metaprogramming library, david and aleksey take tmp from the laboratory to the workplace with readable prose and practical examples, showing that compiletime stl is as able as its runtime counterpart. Most people insist on trying to metaprogram from inside their favorite language.
Download pdf c template metaprogramming book full free. They are almost completed so i thought that i should combine all those tutorials at one place and make an ebook. See how to build a code generator and get a closer look at languagesensitive macro programming in scheme. Those who downloaded this book also downloaded the following books. Now expanding about the use of templates for that purpose. It means that a program can be designed to read, generate, analyze or transform other programs, and even modify itself while running. A way around this is to do metaprogramming from outside the language, using program transformation tools. Domain specific language implementation via compiletime. C template metaprogramming available for download and read online in other formats. Metaprogramming python 3 patterns, recipes and idioms. The complete guide by david vandevoorder and nicolai m.
C language tutorial pdf 124p this note covers the following topics. That doesnt work if the language doesnt support metaprogramming well. Learn why metaprogramming is necessary and look at some of the. However, before you get visions in your mind of robots writing code to take over the world, understand that its actually much less intense. Too much cleverness in programming makes designs more complicated, code more fragile, learning curves steeper, and worst of all, it makes debugging harder. The output of these templates include compiletime constants, data structures, and complete functions. With variadic templates, parameter packs and template aliases. Research on metaprogramming is about convenient, principled, general. Learn c programming pdf free ebook for beginners hello everyone, from very long time i was sharing c programming tutorials regularly. One use of templates is for mathematical structures. I was motivated to write this after i read eric nieblers thoughtprovoking tiny metaprogramming library article.
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