Make zero function not mandatory for AbstractGraph interface (JuliaGr…

…aphs#85)
Tortar · Feb 9, 2022 · 3628517 · 3628517
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commit 3628517
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diff --git a/docs/src/developing.md b/docs/src/developing.md
@@ -20,7 +20,6 @@ within the Graphs package should just work:
   should be implemented with **both** of the following signatures:
   - `is_directed(::Type{CustomGraph})::Bool` (example: `is_directed(::Type{<:CustomGraph}) = false`)
   - `is_directed(g::CustomGraph)::Bool`
-- [`zero`](@ref)
 
 If the graph structure is designed to represent weights on edges, the [`weights`](@ref) function should also be defined.
 Note that the output does not necessarily have to be a dense matrix, but it must be a subtype of `AbstractMatrix{<:Real}` and indexable via `[u, v]`.