<p dir="auto">Not sure if this is fixed on master, but on 0.4.3:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="function ff()
    gg(x,y)=1.0*(x==y)
    xx=[(i,i) for i=1:2]
    yy=xx'
    broadcast(gg,xx,yy)
end

ff()

&gt; ERROR: LoadError: MethodError: `convert` has no method matching
&gt; convert(::Type{Tuple{Int64,Int64}}, ::Float64)
"><pre class="notranslate"><code class="notranslate">function ff()
    gg(x,y)=1.0*(x==y)
    xx=[(i,i) for i=1:2]
    yy=xx'
    broadcast(gg,xx,yy)
end

ff()

&gt; ERROR: LoadError: MethodError: `convert` has no method matching
&gt; convert(::Type{Tuple{Int64,Int64}}, ::Float64)

</code></pre></div>
<p dir="auto">With current 0.5 master:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="julia&gt; map(Float32, [3,4,5])
3-element Array{Float32,1}:
 3.0
 4.0
 5.0

julia&gt; broadcast(Float32, [3,4,5])
3-element Array{Int64,1}:
 3
 4
 5"><pre class="notranslate"><code class="notranslate">julia&gt; map(Float32, [3,4,5])
3-element Array{Float32,1}:
 3.0
 4.0
 5.0

julia&gt; broadcast(Float32, [3,4,5])
3-element Array{Int64,1}:
 3
 4
 5
</code></pre></div>
<p dir="auto">We presumably want to return a <code class="notranslate">Float32</code> array in both cases?</p>
<p dir="auto">cc: <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/ViralBShah/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/ViralBShah">@ViralBShah</a>: this affects the case you asked about in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="43641309" data-permission-text="Title is private" data-url="https://github.com/JuliaLang/julia/issues/8450" data-hovercard-type="issue" data-hovercard-url="/JuliaLang/julia/issues/8450/hovercard" href="https://github.com/JuliaLang/julia/issues/8450">#8450</a>, since my <code class="notranslate">f.(x...)</code> implementation in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="133107578" data-permission-text="Title is private" data-url="https://github.com/JuliaLang/julia/issues/15032" data-hovercard-type="pull_request" data-hovercard-url="/JuliaLang/julia/pull/15032/hovercard" href="https://github.com/JuliaLang/julia/pull/15032">#15032</a> is equivalent to <code class="notranslate">broadcast</code>.</p>