Adding view::remove_when. #1219
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| /// \file | ||
| // Range v3 library | ||
| // | ||
| // Copyright Eric Niebler 2013-present |
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This should be your copyright. See #1137 (comment).
| { | ||
| /// \addtogroup group-views | ||
| /// @{ | ||
| template<typename Rng, typename Pred> |
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I think these Pred should be Fun, like in split_when, except for the one in the range adaptor that really takes a predicate and transforms it into a function.
range-v3/include/range/v3/view/split_when.hpp
Lines 44 to 45 in 66c9f5f
| namespace detail | ||
| { | ||
| template<typename Pred> | ||
| struct predicate_pred |
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I think this should be moved to the ../detail directory, and definitely renamed, maybe to delimiter_specifier.
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| namespace view | ||
| { | ||
| /// Given a source range, unary predicate, and optional projection, |
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This should go into doc/index.md after remove_if. I recommend the following description:
<DT>\link ranges::view::remove_when_fn `view::remove_when`\endlink</DT>
<DD>Given a source range and a delimiter specifier, filter out those elements specified by the delimiter specifier. The delimiter specifier can be a predicate or a function. The predicate should take a single argument of the range's reference type and return `true` if and only if the element is part of a delimiter. The function should accept an iterator and sentinel indicating the current position and end of the source range and return `std::make_pair(true, iterator_past_the_delimiter)` if the current position is a boundary; otherwise `std::make_pair(false, ignored_iterator_value)`.</DD>
test/view/remove_when.cpp
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| // Range v3 library | |||
| // | |||
| // Copyright Eric Niebler 2014-present | |||
| static auto bind(remove_when_fn remove_when, Fun && fun) | ||
| { | ||
| return make_pipeable(std::bind( | ||
| remove_when, std::placeholders::_1, static_cast<Fun &&>(fun))); |
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Please rebase on master and replace std::bind with bind_back, and make this function constexpr. (You should also #include <range/v3/functional/bind_back.hpp>.)
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When you rebase on master, you also need to accommodate the Great Concept Rename (i.e., the great_concept_rename), and the fact that the |
Implements #1171, based on what my understanding is of what that's supposed to do.