使用 Clang 将 C++ 转换为 C 代码 [英] Use Clang to convert C++ to C code

问题描述

我知道llvm可以用来把c++转成c代码.我想知道 clang 是否可以做同样的事情(看到 clang 是从 llvm 派生的).

I know that llvm can be used to convert c++ into c code. I was wondering if clang could do the same thing (seeing as clang was derived from llvm).

那么我可以使用clang将c++代码转换成c代码吗?

So can I use clang to convert c++ code into c code?

如果你想知道我为什么要这样做，这是我的场景:

If you want to know why I want to do this here is my scenario:

PIC 是一家微控制器制造商，不生产 c++ 编译器，但为他们的大多数产品生产 c 编译器.我想用 c++ 编写，然后作为构建过程的一部分，将 c++ 代码转换为临时 c 文件，然后将其输入 PIC 编译器，中提琴我已经为 PIC micro 编写了 c++ 代码.

PIC, which is a micro controller manufacturer, does not make c++ compilers, but does make c compilers for most of their products. I want to write in c++ and then as part of my build process, convert the c++ code into a temporary c file, which is then fed into the PIC compiler, and viola I have written c++ code for a PIC micro.

推荐答案

Clang 可以读取 C++ 并发出 LLVM IR.您似乎知道 LLVM 可以读取 IR 并发出 C(来自您自己的链接:http://llvm.org/releases/3.1/docs/FAQ.html#translatecxx).所以 Clang 不能直接发出 C，但它可以发出 LLVM IR，然后你转身转换为 C.两步，Clang 就是其中之一.

Clang can read C++ and emit LLVM IR. You seem to be aware that LLVM can read IR and emit C (from your own link: http://llvm.org/releases/3.1/docs/FAQ.html#translatecxx). So Clang cannot directly emit C, but it can emit LLVM IR which you then turn around and convert to C. Two steps, and Clang is one of them.

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