[Lldb-commits] [PATCH] D39967: Disable breakpoints before writing memory and re-enable after.

[Tatyana Krasnukha via Phabricator via lldb-commits]

tatyana-krasnukha added inline comments.


================
Comment at: source/Breakpoint/BreakpointSiteList.cpp:191
   if (lower != m_bp_site_list.begin()) {
-    collection::const_iterator prev_pos = lower;
-    prev_pos--;
+    auto prev_pos = std::prev(lower);
     const BreakpointSiteSP &prev_bp = (*prev_pos).second;
----------------
xiaobai wrote:
> If `m_bp_site_list` is empty, `prev_pos` could be `m_bp_site_list.end()`, I believe, so you would have to check for that here. This is assuming that this method can be invoked when `m_bp_site_list` is empty, which I'm not entirely sure about. 
If m_bp_site_list is empty, lower  == begin() and we never fall in this code, isn't it?


https://reviews.llvm.org/D39967