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Avoid array overrun in OSX's wxCheckListBox::IsChecked

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This commit is contained in:
Robin Dunn
2020-12-29 18:07:20 -08:00
parent be5b68459d
commit bf6fee0af9
1 changed files with 7 additions and 1 deletions
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8
src/osx/checklst_osx.cpp
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@@ -83,7 +83,13 @@ bool wxCheckListBox::IsChecked(unsigned int n) const
wxCHECK_MSG( IsValid(n), false, wxCHECK_MSG( IsValid(n), false,
wxT("invalid index in wxCheckListBox::IsChecked") ); wxT("invalid index in wxCheckListBox::IsChecked") );
return m_checks[n] != 0; // It's possible that m_checks has not yet been expanded to match the
// wxCheckListBox::GetCount() value (for example while in the midst of
// appending a new item) so double-check that we don't read beyond the end
// of the array.
if (n < m_checks.size())
return m_checks[n] != 0;
return false;
} }
void wxCheckListBox::Check(unsigned int n, bool check) void wxCheckListBox::Check(unsigned int n, bool check)