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Filter(f, tuple) #32968

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merged 8 commits into from
Dec 3, 2019
Merged

Filter(f, tuple) #32968

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c0f4fa0
filter(f, tuple)
mcabbott Aug 20, 2019
bba1837
one test
mcabbott Aug 20, 2019
eac113a
afoldl magic one-line
mcabbott Sep 26, 2019
d913e80
add news, for 1.4
mcabbott Sep 26, 2019
83d2b79
merge master
mcabbott Sep 26, 2019
6c8dc2e
merge + resolve
mcabbott Sep 29, 2019
f9fe412
Merge branch 'master' into filter
mcabbott Oct 25, 2019
c0da488
Merge branch 'master' into filter
mcabbott Nov 24, 2019
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afoldl magic one-line 
Co-authored-by: Takafumi Arakaki <[email protected]>
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@mcabbott @tkf
mcabbott and tkf committed Sep 26, 2019
commit eac113af06b34a7edadde2a9401cfc8766e23aad
12 changes: 2 additions & 10 deletions base/tuple.jl
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Expand Up @@ -251,16 +251,8 @@ end

## filter ##

filter(f, t::Tuple) = _filter(f, t, ())
function _filter(f, t::Tuple, r::Tuple)
@_inline_meta
if f(first(t))
return _filter(f, tail(t), (r..., first(t)))
else
return _filter(f, tail(t), r)
end
end
_filter(f, t::Tuple{}, r::Tuple) = r
filter(f, xs::Tuple) = afoldl((ys, x) -> f(x) ? (ys..., x) : ys, (), xs...)

# use Array for long tuples
filter(f, t::Any16) = Tuple(filter(f, collect(t)))

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