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Override ==, any() and all() for AbstractArray{:>Null} #37
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1 +1,2 @@ | ||
julia 0.6 | ||
Compat 0.31 |
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I wouldn't have thought to use
===
for checking booleans before seeing this, but it's noticably fasteris there any reason to not always use
===
rather than==
for boolean comparison?There was a problem hiding this comment.
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In general, boolean comparisons aren't that common, especially in control flow, since it's typically easier to just say
if eq
orif !eq
. In this case===
is needed to ensure thatnull
doesn't propagate in the comparison.There was a problem hiding this comment.
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I wouldn't trust benchmarks on elementary operations like this. Wrapping these in a function gives exactly the same native code.
I could also have used
isequal(eq, true)
, but using===
we ensure no other type can overrideisequal
, as "truthiness" isn't considered as a good idea in general in Base Julia.