[Chicken-janitors] #453: Allow unsigned-integer64 as an FFI return type

[Chicken Trac]

#453: Allow unsigned-integer64 as an FFI return type
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 Reporter:  syn          |       Owner:       
     Type:  enhancement  |      Status:  new  
 Priority:  minor        |   Milestone:  4.7.0
Component:  unknown      |     Version:  4.6.x
 Keywords:               |  
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 As of 4.6.3, {{{unsigned-integer64}}} is available as an FFI type for
 function arguments and locations but it is not yet as a return type. I see
 that this belongs into the {{{foreign-result-conversion}}} procedure in
 {{{support.scm}}} but I don't really know how exactly the conversion has
 to be done.

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Ticket URL: <http://bugs.call-cc.org/ticket/453>
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