Polymake 4.0

Release dates:

• 4.0: January 29th, 2020
  • r1: February 19th, 2020

– general –

• Data file format switched from XML to JSON
• Basic datatype for all sizes and indexes in C++ is now 'Int' which is 'long int'
• Object class in C++ renamed to BigObject

– distribution –

• support for clang 9
• [r1] compatibility with gmp 6.2

– interfaces –

• libnormaliz:
  1. Update bundled version to 3.8.3
  2. configure: check for extra libraries
• cdd: Fix configure.pl for fedora installed cdd
• porta: disable convex hull rules, can still be called via porta_primal and porta_dual
• TOSimplex: various improvements

– core –

• [r1] fix memory leak with pool allocator
• [r1] fix BigObject construct and cast from callable library
• [r1] fix –touch
• [r1] invalid TERMs will warn instead of die

– common –

• PolyDB: new layout of collections and metadata, no XML or perl code stored with data anymore
• PolyDB: using JSON schemas for collection definition
• PolyDB: new object-oriented user interface
• [r1] improve type compatibility for GF2

– fan –

• HyperplaneArrangement: Refactor
  1. Remove property INPUT_HYPERPLANES
  2. Property HYPERPLANES allows redundant hyperplanes now
  3. Introduce simple version of facet_arrangement

– fulton –

• ToricDivisor: Introduce property VERY_AMPLE
• New standard construction for weighted projective space

– polytope –

• Polytope: new property FACET_VOLUMES
• beneath_beyond: fixed bug in corner-case for non-fulldimensional input
• minkowski_sum_fukuda: improvements and cleanup