https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55815
--- Comment #9 from landave <blog at landave dot io> --- I am on Fedora with gcc 8.1.1, and it seems this issue has not been resolved yet. I have attached an example for a multicollision, as well as a small program that inserts the strings into an std::unordered_set<std::string>. The program is compiled as follows $ g++ -O3 multicollision.cpp -o multicollision and executed without arguments $ ./multicollision reading input file... done. generating some random input of same size... done. inserting 32768 randomly generated strings of length 240... done (8ms). the first string is in a bucket of size 1. inserting 32768 maliciously generated strings of length 240... done (7854ms). the first string is in a bucket of size 32768.
