如何在 Linux 上编译 .cpp 文件？
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How do I compile a .cpp file on Linux?
提问by pluc
I'm fairly comfortable with Linux and compiling things - I normally just follow the instructions and can manage to get myself out of trouble. This time, I was given a .cpp file by a random Internet citizen and I would really like to know how to compile it. Everything I seem to try (g++, c++, gcc) doesn't seem to work.
我对 Linux 和编译东西相当满意 - 我通常只是按照说明进行操作，并且可以设法让自己摆脱困境。这一次，我随机收到了一个.cpp文件，我很想知道如何编译它。我似乎尝试的一切（g++、c++、gcc）似乎都不起作用。
Anyhow, here's the file: http://pastebin.ca/2073013
无论如何，这是文件：http: //pastebin.ca/2073013
Edit: Updated with verbose output from g++ file.cpp -o whatever: http://pastebin.ca/2073052
编辑：更新详细输出g++ file.cpp -o whatever：http: //pastebin.ca/2073052
回答by loudandclear
You'll need to compile it using:
您需要使用以下命令编译它：
g++ inputfile.cpp -o outputbinary
The file you are referring has a missing #include <cstdlib>directive, if you also include that in your file, everything shall compile fine.
您所引用的文件缺少一个#include <cstdlib>指令，如果您还将该指令包含在您的文件中，则一切都可以正常编译。
回答by rwik
Just type the code and save it in .cpp format. then try "gcc filename.cpp" . This will create the object file. then try "./a.out" (This is the default object file name). If you want to know about gcc you can always try "man gcc"
只需键入代码并将其保存为 .cpp 格式。然后尝试 "gcc filename.cpp" 。这将创建目标文件。然后尝试“./a.out”（这是默认的目标文件名）。如果您想了解 gcc，您可以随时尝试“man gcc”
回答by David Grayson
The compiler is telling you that there are problems starting at line 122 in the middle of that strange FBI-CIA warning message. That message is not valid C++ code and is NOT commented out so of course it will cause compiler errors. Try removing that entire message.
编译器告诉您在奇怪的 FBI-CIA 警告消息中间的第 122 行开始存在问题。该消息不是有效的 C++ 代码并且没有被注释掉，所以它当然会导致编译器错误。尝试删除整个消息。
Also, I agree with In silico: you should always tell us what you tried and exactly what error messages you got.
另外，我同意 In silico：您应该始终告诉我们您尝试了什么以及您收到了哪些错误消息。
