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| author | Morgan Deters <mdeters@cs.nyu.edu> | 2014-11-08 15:13:24 -0500 |
|---|---|---|
| committer | Morgan Deters <mdeters@cs.nyu.edu> | 2014-11-09 18:53:29 -0500 |
| commit | 5c99a9b0fb5f8c0f0aabc8ddcee1cbb93d493eca (patch) | |
| tree | 23699b1fa483a51a581f029b975548001c1d3002 | |
| parent | 36ff166f3d2976ad13536de8c699e86d1ff99e65 (diff) | |
Work around an apparent bug in libc++ that was causing crashes on Mac..
| -rw-r--r-- | src/expr/node_manager.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/expr/node_manager.cpp b/src/expr/node_manager.cpp index fb1284d0d..2b6feafa5 100644 --- a/src/expr/node_manager.cpp +++ b/src/expr/node_manager.cpp @@ -202,10 +202,21 @@ void NodeManager::reclaimZombies() { NodeValueReferenceCountNonZero()); d_zombies.clear(); +#ifdef _LIBCPP_VERSION + NodeValue* last = NULL; +#endif for(vector<NodeValue*>::iterator i = zombies.begin(); i != zombies.end(); ++i) { NodeValue* nv = *i; +#ifdef _LIBCPP_VERSION + // Work around an apparent bug in libc++'s hash_set<> which can + // (very occasionally) have an element repeated. + if(nv == last) { + continue; + } + last = nv; +#endif // collect ONLY IF still zero if(nv->d_rc == 0) { |