In C++14, the single-quote character may be used arbitrarily as a digit separator in numeric literals, both integer literals and floating point literals.This can make it easier for human readers to parse large numbers through subitizing.
auto integer_literal = 1'000'000;
auto floating_point_literal = 0.000'015'3;
auto binary_literal = 0b0100'1100'0110;
auto silly_example = 1'0'0'000'00;