memsert

memsert is not a standard function in the C++ standard library. It does not exist in the standard library as of C++17. If you are looking for an equivalent operation, you may want to consider using the std::vector::insert or std::map::insert functions, depending on the specific context of your use case. If you have a custom memsert function in your codebase, please provide the specific details or implementation of the function for further assistance.