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Thread safety and string

To: "'libstdc++ AT sourceware.cygnus dot com'" <libstdc++ AT sourceware.cygnus dot com>
Subject: Thread safety and string
From: Jonathan H Lundquist <jhl AT sssonline dot com>
Date: Mon, 13 Sep 1999 13:42:50 -0700

Title: Thread safety and string

As far as I can tell, the string implementation in libstd++ is *not* thread safe. The documentation includes the following:

"While parts of the SGI STL are used in libstdc++-v3, their string class is not. The SGI string is essentially vector<char> and does not do any reference counting like libstdc++-v3's does. (It is O(n), though.) Contrary to what some say, reference counting is not incompatable with multithreading, if done correctly"

Is it currently thought to be threadsafe?

Follow-Ups:
- Re: Thread safety and string
  - From: Benjamin Kosnik
- Re: Thread safety and string
  - From: Ulrich Drepper

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