Is the C++ standard library thread safe? [duplicate]

Question

Possible Duplicate:
Do I need to protect read access to an STL container in a multithreading environment?

I am using the C++ standard library which comes with (Linux) GCC or (Windows) VC.

Can anyone please say clearly whether or not this library is thread safe?

Answer 1

"Thread safe" is not a clearly-defined boolean property of a library. Some things can be done concurrently and others cannot.

Almost certainly if you were to ask a more detailed question specifying what it is you want to do, the answer would be "no, it is not thread-safe". But only almost.

If by "thread-safe" you mean something like the difference between Vector and ArrayList in Java, then C++ standard containers are non-thread-safe.