Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Remove a field.

const_iterator
erase(
    const_iterator pos);

References and iterators to the erased elements are invalidated. Other references and iterators are not affected.

Name	Description
`pos`	An iterator to the element to remove.

An iterator following the last removed element. If the iterator refers to the last element, the end() iterator is returned.