C ++ Template Metaprogramming - 是否可以输出生成的代码？ [英] C++ Template Metaprogramming - Is it possible to output the generated code?

问题描述

我想调试一些模板化的代码来更好地理解它。

不幸的是，我对模板元编程很陌生，很难进入。

I would like to debug some templated code to understand it better.
Unfortunately I'm new to template metaprogramming and it IS hard for me to get in.

当我尝试输出预处理的源文件时，我得到125 000行代码：/

When I try to output the preprocessed source files I get 125 000 lines of code :/

所以有一种方式，我可以看到生成码？ （我使用的图书馆是 SeqAn ）

So is there a way I can see the generated Code? (The library I'm using is SeqAn)

推荐答案

不是。预处理器与模板处理无关，这由编译器执行。模板不生成C ++代码，除了函数调用，它们是C ++语言本身的组成部分。

No it isn't. The preprocessor has nothing to do with template processing, which is performed by the compiler. Templates do not generate C++ code, any more than a function call does - they are an integral part of the C++ language itself.

这篇关于C ++ Template Metaprogramming - 是否可以输出生成的代码？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！