#4000: [with patch, needs work] Implement QQ['x'] via Flint ZZ['x'] + 
denominator
------------------------------+---------------------------------------------
 Reporter:  malb              |       Owner:  somebody       
     Type:  enhancement       |      Status:  new            
 Priority:  major             |   Milestone:  sage-wishlist  
Component:  basic arithmetic  |    Keywords:                 
 Reviewer:                    |      Author:  Martin Albrecht
   Merged:                    |  
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Comment(by malb):

 Also, I think our design for {{{.den}}} is false. It shouldn't be
 preallocated because this makes you call realloc, i.e. we have two system
 calls instead of one. This is quite expensive.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4000#comment:10>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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