C ++程序可以在Mac OS上运行吗？

Question

I have watched a video in which one of the director of scs software (who makes a EURO TRUCK SIMULATOR game) saying that the game is written entirely in C++, yet the game runs on Windows and Mac OS as well. How could they achieve it? Is it possible to run a C++ program on MAC OS?

Answer 1

Yes.

...OK, stack overflow wants at least 30 characters. OS X comes with the C++ compiler clang++ , which is built on top of llvm . In fact, Apple stopped supplying a port of gcc some time ago, so developers either have to build it themselves or adapt to clang . According to Wikipedia, Apple itself develops clang .

Answer 2

可以在终端中运行gcc或使用Xcode对其进行编译，但是您不能再使用Cocoa，但Mac可以使用Qt之类的替代方法。

Answer 3

Sure, there are C++ compilers for Mac OS X as well. One is even included in xcode (the standard development environment on a Mac).

But that does not mean, that you can compile just any C++ program on a Mac. It has to be designed to use libraries, that are available on both platforms (instead of MFC on Windows or Cocoa on the Mac). This is possible for example by using wxwidgets or QT. With these two libraries it is even possible to compile the program for Unix platforms like Linux as well.

Answer 4

Regardless of language a multi-platform program relies on some basic support parts that are implemented differently on each platform. With pure standard C++ this is the standard library and the runtime support, but in practice a game, say, will also rely on 3 ^rd party libraries with platform specific implementations. So given that the platform itself is compatible with the basic platform assumptions of the C++ language, and the Mac is, achieving such portability is conceptually very straightforward, although difficult to get perfect.

As an example of a platform that's not entirely compatible with C++, Microsoft's .NET virtual machine is apparently so at odds with the ideas of C++ that Microsoft has found it necessary to define two different non-standard variants of C++ for it, and offers no way to produce GUI programs for it in pure standard C++. It's not impossible to use only standard C++ for .NET, and indeed one main reason to use C++ with .NET is to combine standard C++ parts with more .NET-y parts; it's just that using only standard C++ the code becomes complex, inefficient and generally impractical. For example, my first questions here on SO concerned how to do a simple .NET message box in standard C++ by way of COM technology as an intermediate layer, and that worked, but with a ridiculous amount of complex non-general support code.

As another example, using C++ in web pages is very much an impedance mismatch, so to speak. Again Microsoft is the main player who has attempted this, with their ActiveX technology. It turned out to be a good way ensure that PCs all over the world got infested with malware, because C++ is not the kind of language where it's easy to constrain what the code can do. As far as I know only Microsoft's own Internet Explorer browser ever supported ActiveX in web pages. And as of Windows 10 the IE browser is being phased out and replaced by the newer Edge browser, that does not support ActiveX in web pages.