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use default library for Polyhedra in 0.7 #831

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Oct 20, 2018
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use default library for Polyhedra in 0.7 #831

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54 changes: 36 additions & 18 deletions src/AbstractPolytope.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -116,27 +116,45 @@ function load_polyhedra_abstractpolytope() # function to be loaded by Requires

return quote

import CDDLib # default backend
import Polyhedra:polyhedron,
HRep, VRep,
removehredundancy!, removevredundancy!,
hreps, vreps,
intersect,
convexhull,
hcartesianproduct,
points

@static if VERSION < v"0.7-"
import Polyhedra:polyhedron,
HRep, VRep,
removehredundancy!, removevredundancy!,
hreps, vreps,
intersect,
convexhull,
hcartesianproduct,
points

import CDDLib # default backend
import Polyhedra:SimpleHRepresentation, SimpleHRepresentation
end

function default_polyhedra_backend(N::Type{<:AbstractFloat})
return CDDLib.CDDLibrary()
function default_polyhedra_backend(N::Type{<:AbstractFloat})
return CDDLib.CDDLibrary()
end

function default_polyhedra_backend(N::Type{<:Rational})
return CDDLib.CDDLibrary(:exact)
end

else
import .Polyhedra:polyhedron,
HRep, VRep,
removehredundancy!, removevredundancy!,
hreps, vreps,
intersect,
convexhull,
hcartesianproduct,
points,
default_library

function default_polyhedra_backend(N::Type{<:AbstractFloat})
return default_library(2, Float64)
end

function default_polyhedra_backend(N::Type{<:Rational})
return default_library(2, Rational{Int})
end
end

function default_polyhedra_backend(N::Type{<:Rational})
return CDDLib.CDDLibrary(:exact)
end

end # quote
end # function load_polyhedra_hpolytope()