Dy/highorder

[denizyuret]

Necessary for denizyuret/Knet.jl#439

[codecov]

Codecov Report

Merging #111 into master will increase coverage by 0.34%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #111      +/-   ##
==========================================
+ Coverage   67.07%   67.42%   +0.34%     
==========================================
  Files          13       13              
  Lines         568      571       +3     
==========================================
+ Hits          381      385       +4     
+ Misses        187      186       -1

Impacted Files	Coverage Δ
src/show.jl	10.34% <0%> (-0.37%)	⬇️
src/getindex.jl	61.9% <100%> (ø)	⬆️
src/sum_outgrads.jl	47.91% <100%> (+6.61%)	⬆️

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[coveralls]

Pull Request Test Coverage Report for Build 439

• 4 of 6 (66.67%) changed or added relevant lines in 3 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.3%) to 64.368%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/show.jl	0	2	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/sum_outgrads.jl	2	47.92%

Totals
Change from base Build 434:	0.3%
Covered Lines:	336
Relevant Lines:	522

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💛 - Coveralls