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Return correct type add_vertex! and add_vertices! #17

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Return correct type add_vertex! and add_vertices! #17

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2 changes: 1 addition & 1 deletion src/abstract_multigraph.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,7 @@ rem_edge!(mg::AbstractMultigraph, x, y, z) = rem_edge!(mg, MultipleEdge(x, y, z)

has_vertex(mg::AbstractMultigraph, v::Integer) = v in vertices(mg)
rem_vertex!(mg::AbstractMultigraph{T}, v::T) where {T<:Integer} = rem_vertices!(mg, [v])
add_vertex!(mg::AbstractMultigraph{T}) where {T<:Integer} = add_vertices!(mg, one(T))
add_vertex!(mg::AbstractMultigraph{T}) where {T<:Integer} = add_vertices!(mg, one(T)) == 1 ? true : false

function outneighbors(mg::AbstractMultigraph, v) end
function inneighbors(mg::AbstractMultigraph, v) end
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2 changes: 1 addition & 1 deletion src/multigraph_adjlist.jl
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Expand Up @@ -131,7 +131,7 @@ function add_vertices!(mg::Multigraph{T}, n::Integer) where {T<:Integer}
for i in new_ids
mg.adjlist[i] = T[]
end
return new_ids
return length(new_ids)
end

function outneighbors(mg::Multigraph, v::Integer; count_mul::Bool = false)
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6 changes: 5 additions & 1 deletion test/multigraph_adjlist.jl
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Expand Up @@ -68,4 +68,8 @@ add_vertex!(g)
@test indegree(g) == outdegree(g)

mg0 = Multigraph(0)
@test nv(mg0) == ne(mg0) == 0
@test nv(mg0) == ne(mg0) == 0
# addvertex returns correct type
@test add_vertex!(mg0)
@test add_vertices!(mg0, 5) == 5