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I don't think that's true.

> A C++ standard library function shall not directly or indirectly modify objects (1.10) accessible by threads other than the current thread unless the objects are accessed directly or indirectly via the function’s non-const arguments, including this

Consider the case where I invoke `std::find_if`. It takes const iterators to a std::vector. I'm now indirectly modifying objects through standard library functions that are modifying objects by multiple threads through const arguments.

Pretty sure this is a viral requirement and using any part of the STL can effectively taint your program if you're not careful.



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