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AK: Add Queue::head()

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This returns a const T& for the first element in the queue, without
dequeuing it.
This commit is contained in:
Andreas Kling 2019-11-03 12:09:19 +01:00
parent c1d3ac7108
commit 78a744da77
1 changed files with 6 additions and 0 deletions
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6
AK/Queue.h
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@ -40,6 +40,12 @@ public:
return value;
}
const T& head() const
{
ASSERT(!is_empty());
return (*m_segments.first())[m_index_into_first];
}
void clear()
{
m_segments.clear();