13 #ifndef RANGES_V3_ALGORITHM_GENERATE_HPP
14 #define RANGES_V3_ALGORITHM_GENERATE_HPP
20 #include <range/v3/algorithm/result_types.hpp>
28 #include <range/v3/utility/static_const.hpp>
30 #include <range/v3/detail/prologue.hpp>
36 template<
typename O,
typename F>
37 using generate_result = detail::out_fun_result<O, F>;
39 RANGES_FUNC_BEGIN(generate)
45 constexpr generate_result<O, F> RANGES_FUNC(generate)(O
first, S last, F fun)
49 return {detail::move(
first), detail::move(fun)};
53 template(
typename Rng,
typename F)(
54 requires invocable<F &> AND
output_range<Rng, invoke_result_t<F &>>)
55 constexpr generate_result<borrowed_iterator_t<Rng>, F>
56 RANGES_FUNC(generate)(Rng && rng, F fun)
58 return {(*this)(begin(rng), end(rng), ref(fun)).out, detail::move(fun)};
61 RANGES_FUNC_END(generate)
65 using ranges::generate;
66 using ranges::generate_result;
71 #include <range/v3/detail/epilogue.hpp>
template(typename Rng, typename F)(requires invocable< F & > AND output_range< Rng
This is an overloaded member function, provided for convenience. It differs from the above function o...
CPP_concept invocable
\concept invocable
Definition: concepts.hpp:48
CPP_concept sentinel_for
\concept sentinel_for
Definition: concepts.hpp:306
CPP_concept output_iterator
\concept output_iterator
Definition: concepts.hpp:347
CPP_concept output_range
\concept output_range
Definition: concepts.hpp:91
typename Fn::template invoke< Args... > invoke
Evaluate the invocable Fn with the arguments Args.
Definition: meta.hpp:541
front< Pair > first
Retrieve the first element of the pair Pair.
Definition: meta.hpp:2251