评分程序 - 编译/执行c ++中的c ++代码 [英] Grading Program - Compile/executing c++ code within c++

问题描述

我正在写一个程序来评分学生提交的c ++代码。现在，它使用系统调用来编译每个源文件，然后将输入重定向到一个文件，并在进程中调用新的可执行文件，并在输出中搜索某些字符串。这也允许我对程序崩溃的进程超时。

有没有更好的方法来做这个比系统调用？

解决方案

您可能希望在备用帐户下运行程序，如果任何分配需要用户交互，那么 expect

/ code>（这是基于Tcl的）将是一个不错的选择。

I am writing a program to grade c++ code that students submit. Right now it uses a system call to compile every source file then redirects the input to a file and calls the new executables in processes and searches the output for certain strings. This also allows me to have a timeout on processes for programs that crash.

Is there a better way to do this than a system call? Or a better way to do this in general?

解决方案

You may want to run the programs under an alternate account, e.g. ssh with key-based authentication is a good way to switch to a dummy account.

If any of the assignments require user interaction, then expect (which is Tcl-based) would be a good choice.

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