C++ Standard Library

Iterating over an array

Accessing shared variables in threads

chrono::high_resolution_clock now()

bind

tmpnam

mem_fn

ofstream: Writing a file

std::hex is a manipulator that causes the following integers to be represented in hexadecimal representation.

std::setw align text for tabular output (might also be used in conjunction with std::right).

std::boolalpha

std::cin / std::cout

std::ostringstream

Assigning a string in a C-like function that copies to a char*

string::to_string()

thread::join()

this_thread::sleep_for(…)

std::string_view