从C程序调用C ++函数 [英] Calling a C++ function from a C program

问题描述

如何从C程序调用C ++函数，这可能吗?如果可以，怎么办?谢谢.

How can I call a C++ function from a C program, is it possible?, and if it is how can I do it?. Thank you.

推荐答案

如果您尝试从C调用C ++函数，那么您可能会遇到

If you are trying to call a C++ function from C, then you are probably running into name mangling issues. The compiler does this in order to support function overloading and other features of C++.

您可以使用extern "C"通知C ++编译器将从C代码中调用函数CMACInit():

You can use extern "C" to inform the C++ compiler that the function CMACInit() will be called from C code:

extern "C" CMACInit() { ... }

以这种方式声明时，C ++编译器不会更改名称，而是会进行所有设置，以便可以从C代码中调用该函数.

When declared in this way, the C++ compiler will not mangle the name and will set everything up so the function can be called from C code.

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