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Merge pull request #6032 from RazvanN7/Issue_18230

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Fix Issue 18230 - multiwayUnion sets wrong pred lambdas
merged-on-behalf-of: Andrei Alexandrescu <andralex@users.noreply.github.com>
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The Dlang Bot 2018-01-16 23:10:54 +01:00 • committed by GitHub
commit 17fbc92d59
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1 changed files with 11 additions and 1 deletions
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12
std/algorithm/setops.d
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@ -949,7 +949,8 @@ See also: $(LREF multiwayMerge)
auto multiwayUnion(alias less = "a < b", RangeOfRanges)(RangeOfRanges ror)
{
import std.algorithm.iteration : uniq;
return ror.multiwayMerge.uniq;
import std.functional : not;
return ror.multiwayMerge!(less).uniq!(not!less);
}
///
@ -980,6 +981,15 @@ auto multiwayUnion(alias less = "a < b", RangeOfRanges)(RangeOfRanges ror)
[ 7 ],
];
assert(equal(multiwayUnion(b), witness));
double[][] c =
[
[9, 8, 8, 8, 7, 6],
[9, 8, 6],
[9, 8, 5]
];
auto witness2 = [9, 8, 7, 6, 5];
assert(equal(multiwayUnion!"a > b"(c), witness2));
}
/**