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all_of.hpp
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1 // Range v3 library
3 //
4 // Copyright Andrew Sutton 2014
5 //
6 // Use, modification and distribution is subject to the
7 // Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
10 //
11 // Project home: https://github.com/ericniebler/range-v3
12 //
13 #ifndef RANGES_V3_ALGORITHM_ALL_OF_HPP
14 #define RANGES_V3_ALGORITHM_ALL_OF_HPP
15 
16 #include <utility>
17 
18 #include <range/v3/range_fwd.hpp>
19 
27 #include <range/v3/utility/static_const.hpp>
28 
29 #include <range/v3/detail/prologue.hpp>
30 
31 namespace ranges
32 {
35  RANGES_FUNC_BEGIN(all_of)
36 
37 
38  template(typename I, typename S, typename F, typename P = identity)(
39  requires input_iterator<I> AND sentinel_for<S, I> AND
40  indirect_unary_predicate<F, projected<I, P>>)
41  constexpr bool RANGES_FUNC(all_of)(I first, S last, F pred, P proj = P{}) //
42  {
43  for(; first != last; ++first)
44  if(!invoke(pred, invoke(proj, *first)))
45  break;
46  return first == last;
47  }
48 
50  template(typename Rng, typename F, typename P = identity)(
51  requires input_range<Rng> AND
52  indirect_unary_predicate<F, projected<iterator_t<Rng>, P>>)
53  constexpr bool RANGES_FUNC(all_of)(Rng && rng, F pred, P proj = P{}) //
54  {
55  return (*this)(begin(rng), end(rng), std::move(pred), std::move(proj));
56  }
57 
58  RANGES_FUNC_END(all_of)
59 
60  namespace cpp20
61  {
62  using ranges::all_of;
63  }
65 } // namespace ranges
66 
67 #include <range/v3/detail/epilogue.hpp>
68 
69 #endif
template(typename Rng, typename F, typename P=identity)(requires input_range< Rng > AND indirect_unary_predicate< F
This is an overloaded member function, provided for convenience. It differs from the above function o...
CPP_concept sentinel_for
\concept sentinel_for
Definition: concepts.hpp:306
CPP_concept indirect_unary_predicate
\concept indirect_unary_predicate
Definition: concepts.hpp:632
CPP_concept input_iterator
\concept input_iterator
Definition: concepts.hpp:362
decltype(begin(declval(Rng &))) iterator_t
Definition: access.hpp:698
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
Definition: identity.hpp:25