On Saturday 18 April 2009 05:52:08 Bill Hart wrote:
> Here is the relevant line of code:
>
> if (memcmp (got_data, data[i].want_data, got_count * data[i].size) != 0)
> {
> printf ("wrong result data\n");
> error = 1;
> }
>
> As got_count is 0 then it is comparing two length 0 arrays and says
> they are not equal. So this appears to be a problem with memcmp which
> is just a C library function.
>
memcmp may not be defined for zero sizes , looking at a few manual pages ,
most don't mention that case
> Why it passes on one version of MPIR and not the other I cannot say.
> The data used is identical in both cases and the test code is
> identical.
>
> Bill.
>
> 2009/4/17 Burcin Erocal <[email protected]>:
> > Hi,
> >
> > I got the following error while building Sage-3.4.1.rc3 on my 32-bit
> > Pentium D workstation (prescott?):
> >
> > ...
> > PASS: t-import
> > wrong result data
> > at data[0] align=0
> > src "0"
> > src=0x0
> > order=1 size=1 endian=1 nail=0
> > want count 0
> > got count 0
> > want
> > got
> > /bin/sh: line 4: 31987 Aborted ${dir}$tst
> > FAIL: t-export
> > PASS: t-pprime_p
> > PASS: t-perfpow
> > =============================================================
> > 1 of 57 tests failed
> > Please report to http://groups.google.co.uk/group/mpir-devel/
> > =============================================================
> > ...
> >
> >
> > The tests for mpir-1.1.0, built outside of Sage don't report any
> > problems.
> >
> > Here is my /proc/cpuinfo:
> >
> > processor : 1
> > vendor_id : GenuineIntel
> > cpu family : 15
> > model : 6
> > model name : Intel(R) Pentium(R) D CPU 3.40GHz
> > stepping : 4
> > cpu MHz : 3400.055
> > cache size : 2048 KB
> > physical id : 0
> > siblings : 2
> > core id : 1
> > cpu cores : 2
> > fdiv_bug : no
> > hlt_bug : no
> > f00f_bug : no
> > coma_bug : no
> > fpu : yes
> > fpu_exception : yes
> > cpuid level : 6
> > wp : yes
> > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> > mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
> > constant_tsc pebs bts sync_rdtsc pni monitor ds_cpl est cid cx16 xtpr
> > lahf_lm bogomips : 6800.08
> > clflush size : 64
> >
> >
> > Let me know if you need any more info.
> >
> > Thanks.
> >
> > Burcin
>
>
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