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std.algorithm: Fix the hasAssignableElements restriction from HeapSort

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This restriction seems unnecessary (as HeapSortImpl uses swap/swapAt,
which does not require assignability), and was getting in the way of
e.g. sorting a range of Refs. The range can satisfy either
hasAssignableElements, or hasSwappableElements
This commit is contained in:
Vladimir Panteleev 2014-01-14 14:36:27 +00:00
parent d81d540c3e
commit 2e317d0c5d
1 changed files with 1 additions and 1 deletions
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2
std/algorithm.d
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@ -9466,7 +9466,7 @@ private template HeapSortImpl(alias less, Range)
{
static assert(isRandomAccessRange!Range);
static assert(hasLength!Range);
static assert(hasAssignableElements!Range);
static assert(hasSwappableElements!Range || hasAssignableElements!Range);
alias binaryFun!less lessFun;