如何从boost :: multi_index中删除多个元素？

Question

I am trying to do something like this:

auto& myIndex = myMultiIndex.get<0>();
auto range = myIndex.equal_range(x);
for (auto iter = range.first; iter != range.second; ++iter) {
    if (somePredicate) myIndex.erase(iter);
}

Of course this does not work because the iterator becomes invalid once we erase an element from the container. Also std::remove_if doesn't work since it modifies and overwrites elements in the container which will mess up the other indices. What is the recommended way of doing something like this?

Thanks!

Answer 1

for (auto iter = range.first; iter != range.second;) {
    if (somePredicate) iter = myIndex.erase(iter);
    else ++iter;
}