Add doctest example for fill!

JuliaLang · Nov 25, 2016 · 93372d3 · 93372d3
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diff --git a/base/docs/helpdb/Base.jl b/base/docs/helpdb/Base.jl
@@ -15,6 +15,18 @@ systemerror
 Fill array `A` with the value `x`. If `x` is an object reference, all elements will refer to
 the same object. `fill!(A, Foo())` will return `A` filled with the result of evaluating
 `Foo()` once.
+
+```jldoctest
+julia> A = zeros(2,3)
+2×3 Array{Float64,2}:
+ 0.0  0.0  0.0
+ 0.0  0.0  0.0
+
+julia> fill!(A, 2.)
+2×3 Array{Float64,2}:
+ 2.0  2.0  2.0
+ 2.0  2.0  2.0
+```
 """
 fill!
 

diff --git a/doc/stdlib/arrays.rst b/doc/stdlib/arrays.rst
@@ -464,6 +464,18 @@ Constructors
 
    Fill array ``A`` with the value ``x``\ . If ``x`` is an object reference, all elements will refer to the same object. ``fill!(A, Foo())`` will return ``A`` filled with the result of evaluating ``Foo()`` once.
 
+   .. doctest::
+
+       julia> A = zeros(2,3)
+       2×3 Array{Float64,2}:
+        0.0  0.0  0.0
+        0.0  0.0  0.0
+
+       julia> fill!(A, 2.)
+       2×3 Array{Float64,2}:
+        2.0  2.0  2.0
+        2.0  2.0  2.0
+
 .. function:: reshape(A, dims)
 
    .. Docstring generated from Julia source