Range-v3
Range algorithms, views, and actions for the Standard Library
ranges::index_fn Struct Reference

Description

Unchecked indexed range access.

Public Member Functions

template<typename Rng , typename Int >
requires random_access_range< Rng > &&integral< Int > &&constexpr borrowed_range< Rng > range_reference_t< Rng > operator() (Rng &&rng, Int n) const
 

Member Function Documentation

◆ operator()()

template<typename Rng , typename Int >
requires random_access_range<Rng>&& integral<Int>&& constexpr borrowed_range<Rng> range_reference_t<Rng> ranges::index_fn::operator() ( Rng &&  rng,
Int  n 
) const
constexpr
Returns
begin(rng)[n]