Lazily applies an unary function to each element in the source range that returns another range (possibly empty), flattening the result.
Public Member Functions | |
template<typename Rng , typename Fun > | |
constexpr auto | operator() (Rng &&rng, Fun fun) const |
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constexpr |
viewable_range<Rng> && transformable_range<Rng, Fun> && joinable_range<transform_view<all_t<Rng>, Fun>>