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April 2019

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2 discussions

MinGW64 build
by Robert Szalai 05 Nov '19

05 Nov '19

Hi all, I've been trying to build CLN from windows 64, with some success. It compiles fine, but does not work. The problem is that WIN64 is LLP64, and not ILP64 as Linux. CLN uses long to store pointer data, but size_t or ssize_t should be used as it is guaranteed to be the size of the pointer everywhere. The attached patch was my attempt. Could somebody tell me where else should I look? Pointers are also encoding some metadata in the bits that are set to zero by alingnment, what is this data? There is also some hashing of pointers. Thanks, Robert

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Re: [CLN-list] [GiNaC-list] how to convert CLN __float128 and long double?
by Richard B. Kreckel 22 Apr '19

22 Apr '19

Hello Feng Feng, On 15.04.19 01:10, Feng Feng wrote: > I wonder if there is a way to convert the cl_N or GiNaC numeric type to c++ __float128 or long double? since the both also appear in CUBA. I don't konw what long double is in CUBA, but in general it may vary between platforms. But conversion to and from fp128 types would make sense, IMO. In any case, this has little to do with GiNaC and is best discussed on cln-list(a)ginac.de (cross posting there). Best, -richy. -- <https://in.terlu.de/~kreckel/>

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