template<class InputIterator> typename iterator_traits<InputIterator>::value_type reduce(InputIterator first, InputIterator last);
Effects: Equivalent to:
return reduce(first, last,
typename iterator_traits<InputIterator>::value_type{});
template<class ExecutionPolicy, class ForwardIterator> typename iterator_traits<ForwardIterator>::value_type reduce(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last);
Effects: Equivalent to:
return reduce(std::forward<ExecutionPolicy>(exec), first, last,
typename iterator_traits<ForwardIterator>::value_type{});
template<class InputIterator, class T> T reduce(InputIterator first, InputIterator last, T init);
Effects: Equivalent to:
return reduce(first, last, init, plus<>());
template<class ExecutionPolicy, class ForwardIterator, class T> T reduce(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, T init);
Effects: Equivalent to:
return reduce(std::forward<ExecutionPolicy>(exec), first, last, init, plus<>());
template<class InputIterator, class T, class BinaryOperation> T reduce(InputIterator first, InputIterator last, T init, BinaryOperation binary_op); template<class ExecutionPolicy, class ForwardIterator, class T, class BinaryOperation> T reduce(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last, T init, BinaryOperation binary_op);
Requires:
T shall be MoveConstructible (Table 23).
All of binary_op(init, *first), binary_op(*first, init), binary_op(init, init), and binary_op(*first, *first) shall be convertible to T.
binary_op shall neither invalidate iterators or subranges, nor modify elements in the range [first, last].
Returns: GENERALIZED_SUM(binary_op, init, *i, ...) for every i in [first, last).
Complexity: O(last - first) applications of binary_op.
[ Note: The difference between reduce and accumulate is that reduce applies binary_op in an unspecified order, which yields a nondeterministic result for non-associative or non-commutative binary_op such as floating-point addition. — end note ]
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4