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DynamicBufferIterator: fix end of buffer corner case

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This commit is contained in:
Maxime Coste 2011-12-02 18:57:18 +00:00
parent b1daf8de16
commit 8e39edc567
1 changed files with 3 additions and 1 deletions
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4
src/dynamic_buffer_iterator.cc
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@ -44,7 +44,9 @@ void DynamicBufferIterator::on_modification(const BufferModification& modificati
size_t length = modification.content.length();
if (modification.type == BufferModification::Erase)
{
if (*this <= modification.position + length)
// do not move length on the other side of the inequality,
// as modification.position + length may be after buffer end
if (*this - length <= modification.position)
BufferIterator::operator=(modification.position);
else
*this -= length;