kalmar/Groups.jl
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specific hash and == for AutGrouElem (as functions)

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kalmar 2017-05-15 17:20:44 +02:00
parent 3de09cbab5
commit c20259e1b7
1 changed files with 12 additions and 0 deletions
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12
src/AutGroup.jl
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@ -176,6 +176,11 @@ end
hash(s::AutSymbol, h::UInt) = hash(s.str, hash(s.pow, hash(:AutSymbol, h)))
function hash(g::AutGroupElem, h::UInt)
gens = generators(parent(g).objectGroup)
return hash(g(gens), hash(typeof(g), hash(parent(g), h)))
end
function change_pow(s::AutSymbol, n::Int)
if n == 0
return id_autsymbol()
@ -217,6 +222,13 @@ generators(G::AutGroup) = [G(AutGroupElem(elt)) for elt in G.gens]
(==)(s::AutSymbol, t::AutSymbol) = s.str == t.str && s.pow == t.pow
function (==)(g::AutGroupElem, h::AutGroupElem)
parent(g) == parent(h) || return false
G = parent(g).objectGroup
gens = generators(G)
return g(gens) == h(gens)
end
###############################################################################
#
# Binary operators