Install cppreference-doc-en-html by entering the following commands in the terminal:
sudo apt update sudo apt install cppreference-doc-en-html
Description:
C and C++ standard library reference (English, Devhelp variant)
A version of online C and C++ standard library reference manual available at en.cppreference.com, suitable for viewing offline. . This package contains a Devhelp book.
Homepage: http://en.cppreference.com/w/Cppreference:Archives
Version: 20170409-1
Section: universe/doc