[tor-bugs] #7419 [Tor]: Choose a faster memwipe implementation

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#7419: Choose a faster memwipe implementation
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     Reporter:  nickm        |      Owner:
         Type:  enhancement  |     Status:  needs_review
     Priority:  normal       |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-relay, nickm-patch
Actual Points:               |  Parent ID:
       Points:               |
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Comment (by nickm):

 Well, for test-memwipe.c, we _want_ the compiler to remove the memwipe if
 it can.  I worry that making 'secret' volatile might keep some compiler
 out there from using its memset optimization, and thereby make our test
 invalid.

 Heap allocations are probably even simpler to test than stack allocations.
 Let me see what I can come up with.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7419#comment:14>
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