C++ new operator thread safety in linux and gcc 4 -


I will soon start working on parallel versions of an Aries refine algorithm using shared memory.

A university professor said that we must be very careful about thread protection because neither the compiler nor the thread of the style is known.

I searched this question and the answer was dependent on the compiler (try something to some extent thread-aware) and platform (if the system is called by the compiler Whether it is thread-protected or not).

So, in Linux, the GCC 4 compiler produces a thread-safe code for the new operator?

If not, what is the best way to overcome this problem ? Perhaps every call is locked in the new operator?

You will have to look very hard to find a platform supports thread but there is no thread safe in it < Code> New is not, in fact, the thread protection of new (and malloc ) is very slow.

If you want a thread secured STL On the other hand, you can consider that the thread knows the container (although the thread is not safe for all those operations).


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