[tor-bugs] #17794 [Tor]: Decrease casting in rendcache functions

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#17794: Decrease casting in rendcache functions
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 Reporter:  cypherpunks  |          Owner:
     Type:  defect       |         Status:  new
 Priority:  Low          |      Milestone:
Component:  Tor          |        Version:  Tor: unspecified
 Severity:  Minor        |     Resolution:
 Keywords:               |  Actual Points:
Parent ID:               |         Points:
  Sponsor:               |
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Comment (by cypherpunks):

 To avoid merge conflicts let's first get #17776 merged because both
 tickets touch the same sections of code.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17794#comment:1>
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