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ad-freiburg / qlever

Very fast SPARQL Engine, which can handle very large knowledge graphs like the complete Wikidata, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search. It's faster than engines like Blazegraph or Virtuoso, especially for queries involving large result sets.
Apache License 2.0
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Any support for older C++ standards? #1258

Open gpicciuca opened 9 months ago

gpicciuca commented 9 months ago

Hello, Is there any chance that QLever may support older, more "mature" C++ standards? We're looking for a modern C++ knowledge graph solution which supports RDF and semantic reasoning, but are restricted to C++14 at best (GCC9, CLang15), and we're unable to change these restrictions as per project requirements (automotive area).

hannahbast commented 9 months ago

@gpicciuca QLever makes quite extensive use of modern C++ because it makes the code much cleaner, safer, and more maintainable. Of course, it would be possible to write code that realizes the features we use from C++17 and C++20 based on C++14. If you want to try it, we are happy to support you, but we do not have the capacity to do this ourselves.

Out of curiosity: How long will you be bound by this restriction?

gpicciuca commented 8 months ago

@hannahbast

Sorry for the late response. I double checked and we can actually use C++17 as of latest but C++20 is still far as there are internal procedures (auditing, etc) for new features to be allowed into the Automotive domain (mainly related, but not limited, to MISRA compliance). MISRA23 was released recently which covers C++17 only so I can't really give you a precise answer for when C++20 will be accepted.