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 an older version of Boost and was released in 2013. The current version is 1.91.0.

basic_streambuf::consume

Move the start of the get area by the specified number of characters.

void consume(
    std::size_t n);