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

This is the documentation for a snapshot of the develop branch, built from commit b5267c6e8a.

Assignments from character types would incorrectly assign an integer, so they are not allowed.

field&
operator=(
    char16_t) = delete;