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use std::upper_bound in DisplayBuffer::atom_containing to run in O(log n)

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This commit is contained in:
Maxime Coste 2012-04-05 02:00:34 +00:00
parent e4b872abd2
commit af5c528f04
1 changed files with 4 additions and 6 deletions
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10
src/display_buffer.cc
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@ -1,6 +1,7 @@
#include "display_buffer.hh"
#include "assert.hh"
#include <algorithm>
namespace Kakoune
{
@ -92,12 +93,9 @@ DisplayBuffer::iterator DisplayBuffer::atom_containing(const BufferIterator& whe
DisplayBuffer::iterator DisplayBuffer::atom_containing(const BufferIterator& where,
iterator start)
{
for (iterator it = start; it != m_atoms.end(); ++it)
{
if (it->end() > where)
return it->begin() <= where ? it : end();
}
return end();
return std::upper_bound(start, end(), where,
[](const BufferIterator& where, const DisplayAtom& atom)
{ return where < atom.end(); });
}
DisplayBuffer::iterator DisplayBuffer::split(iterator atom, const BufferIterator& pos)