I profiled the C++ code using APA. It's spending all it's time bit
twiddling and doing mod division. The Java version uses a much more
efficient implementation that uses an array of boolean's which isn't
initialized to turn the bits on.
On 25/06/2021 1:01 pm, Andrew Rowley wrote:
On 25/06/2021 2:34 pm, David Crayford wrote:
If you've got the XLC 2.4.1 it will will be installed in the
/usr/lpp/cbc/xlclang/exe directory. It's 64-bit only. We use this
compiler exclusively now. It's really cool and has neat features such
as type checking printf() format flags at compile time.
I have /usr/lpp/cbclib/xlclang/exe/, but:
ls -l /usr/lpp/cbclib/xlclang/exe/
total 16
erwxrwxrwx 1 OMVSKERN OMVSGRP 7 Jun 12 2019 clcdrvr -> CLCDRVR
I think that is linking to a program outside the filesystem.
I found IBM XL C/C++ V2.4.1 for z/OS V2.4 web deliverable with a
program directory. It has a z/OS dataset that goes in the linklist, I
can't see that on my system. I suspect I have the OMVS bits but need
to request the z/OS components be attached to my system (Dallas RDP
system).
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