强制将头文件编译为Xcode中的C ++ [英] Force Header Files to Compile as C++ in Xcode

问题描述

我在Xcode 7.0中有一个用于iOS的Xcode项目，其中包含Objective-C，C ++和C代码.Xcode尝试将扩展名为.h(不是.hpp)的C ++头文件编译为C头文件，这会产生错误.

I have an Xcode project for iOS in Xcode 7.0 that contains Objective-C, C++, and C code. Xcode tries to compile the C++ header files with the extension .h (not .hpp) as C header files which generates errors.

我该如何解决?应该有一个设置，用于将哪些文件编译为哪种语言.

How do I fix this? There should be a setting for which files should be compiled as which language.

推荐答案

个别不编译头文件.包含它们的已编译源文件.如果将它们包括在.c中，则它们将像C一样编译，如果像.m这样的Objective-c，如果像.cpp这样的C ++，如果像.mm这样的Objective-C ++，就可以编译.

Individually header files doesn't compiled. Compiled source files where they included. If you include them in .c they will be compiled like C, if in .m - like Objective-c, if in .cpp - like C++, if in .mm - like Objective-C++.

.h或.hpp的命名方式无关紧要.

It doesn't matter how you name them .h or .hpp.

如果h文件中有部分C ++代码，则应将其放入

If you have some portion of C++ code in h-file- you should put it in

#ifdef __cplusplus
#endif

如果h文件中有部分Objective-C代码，则应将其放入

If you have some portion of Objective-C code in h-file you should put it in

#ifdef __OBJC__
#endif

这将使该语句中的代码对其他语言不可见.

This will make code inside this statement invisible for other languages.

您可以在Xcode生成的pch文件中找到此语句.

You can find this statement in Xcode's generated pch-file.

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