c++ - 如何编译flex代码以获得动态库？

Question

我想编译我的 flex scanner.l 以便从我的 C/C++ 项目中调用一个动态库。正确的做法是什么？我能否在不同线程中从我的 C/C++ 程序同时调用扫描器？

Answer 1

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@Josh 写道:

The same way you make any other dynamic library with your compiler.

Have your other program call the method(s) defined in lex.yy.c. When you go to compile, tell gcc to compile both your primary program and lex.yy.c. Making it a dynamic library seems a bit overkill.

Flex can generate a re-entrant parser (safe for multi threaded applications):
Flex manual

And if you just want to learn how to create a shared library with gcc, a quick google search should turn up plenty of good results. If you run into specific issues you can be helped further from there.