});
}
+/// A range class that repeats a specific value for a set number of times.
+template <typename T>
+class RepeatRange
+ : public detail::indexed_accessor_range_base<RepeatRange<T>, T, const T> {
+public:
+ using detail::indexed_accessor_range_base<
+ RepeatRange<T>, T, const T>::indexed_accessor_range_base;
+
+ /// Given that we are repeating a specific value, we can simply return that
+ /// value when offsetting the base or dereferencing the iterator.
+ static T offset_base(const T &val, ptrdiff_t) { return val; }
+ static const T &dereference_iterator(const T &val, ptrdiff_t) { return val; }
+};
+
+/// Make a range that repeats the given value 'n' times.
+template <typename ValueTy>
+RepeatRange<ValueTy> make_repeated_range(const ValueTy &value, size_t n) {
+ return RepeatRange<ValueTy>(value, n);
+}
+
/// Returns true of the given range only contains a single element.
template <typename ContainerTy> bool has_single_element(ContainerTy &&c) {
auto it = std::begin(c), e = std::end(c);