[NumPy-Tickets] [NumPy] #1403: long double check is failing on GNU/Linux PPC

NumPy Trac numpy-tickets@scipy....
Mon Feb 22 12:50:45 CST 2010


#1403: long double check is failing on GNU/Linux PPC
----------------------------+-----------------------------------------------
 Reporter:  mounir.lamouri  |       Owner:  somebody
     Type:  defect          |      Status:  new     
 Priority:  normal          |   Milestone:          
Component:  numpy.core      |     Version:  1.4.0   
 Keywords:                  |  
----------------------------+-----------------------------------------------

Comment(by JoseJX):

 I've looked into this a little, here's some more info:

 On a G4 (ppc32) gcc-4.4.3, G5 (ppc32/ppc64 userland) gcc-4.4.3, and a G5
 (ppc64 userland) gcc-4.3.4, all use the IBM Long Double format, which
 actually is a pair of 64 bit longs, basically as shown in this document
 http://publib.boulder.ibm.com/infocenter/aix/v6r1/index.jsp?topic=/com.ibm.aix.genprogc/doc/genprogc
 /128bit_long_double_floating-point_datatype.htm

 I'm sure there's a document that describes it for Linux as well, but it's
 the same format. As far as I know it was made default some time around
 gcc-4.1.

-- 
Ticket URL: <http://projects.scipy.org/numpy/ticket/1403#comment:1>
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