diff options
Diffstat (limited to 'abseil-cpp/absl/algorithm/container.h')
| -rw-r--r-- | abseil-cpp/absl/algorithm/container.h | 294 |
1 files changed, 152 insertions, 142 deletions
diff --git a/abseil-cpp/absl/algorithm/container.h b/abseil-cpp/absl/algorithm/container.h index f0cee94..679e026 100644 --- a/abseil-cpp/absl/algorithm/container.h +++ b/abseil-cpp/absl/algorithm/container.h @@ -77,9 +77,8 @@ using ContainerIterPairType = decltype(std::make_pair(ContainerIter<C1>(), ContainerIter<C2>())); template <typename C> -using ContainerDifferenceType = - decltype(std::distance(std::declval<ContainerIter<C>>(), - std::declval<ContainerIter<C>>())); +using ContainerDifferenceType = decltype(std::distance( + std::declval<ContainerIter<C>>(), std::declval<ContainerIter<C>>())); template <typename C> using ContainerPointerType = @@ -90,17 +89,21 @@ using ContainerPointerType = // lookup of std::begin and std::end, i.e. // using std::begin; // using std::end; -// std::foo(begin(c), end(c); +// std::foo(begin(c), end(c)); // becomes // std::foo(container_algorithm_internal::begin(c), -// container_algorithm_internal::end(c)); +// container_algorithm_internal::end(c)); // These are meant for internal use only. template <typename C> -ContainerIter<C> c_begin(C& c) { return begin(c); } +ContainerIter<C> c_begin(C& c) { + return begin(c); +} template <typename C> -ContainerIter<C> c_end(C& c) { return end(c); } +ContainerIter<C> c_end(C& c) { + return end(c); +} template <typename T> struct IsUnorderedContainer : std::false_type {}; @@ -166,7 +169,7 @@ container_algorithm_internal::ContainerDifferenceType<const C> c_distance( // c_all_of() // // Container-based version of the <algorithm> `std::all_of()` function to -// test a condition on all elements within a container. +// test if all elements within a container satisfy a condition. template <typename C, typename Pred> bool c_all_of(const C& c, Pred&& pred) { return std::all_of(container_algorithm_internal::c_begin(c), @@ -188,7 +191,7 @@ bool c_any_of(const C& c, Pred&& pred) { // c_none_of() // // Container-based version of the <algorithm> `std::none_of()` function to -// test if no elements in a container fulfil a condition. +// test if no elements in a container fulfill a condition. template <typename C, typename Pred> bool c_none_of(const C& c, Pred&& pred) { return std::none_of(container_algorithm_internal::c_begin(c), @@ -343,8 +346,8 @@ container_algorithm_internal::ContainerDifferenceType<const C> c_count_if( // return the first element where two ordered containers differ. Applies `==` to // the first N elements of `c1` and `c2`, where N = min(size(c1), size(c2)). template <typename C1, typename C2> -container_algorithm_internal::ContainerIterPairType<C1, C2> -c_mismatch(C1& c1, C2& c2) { +container_algorithm_internal::ContainerIterPairType<C1, C2> c_mismatch(C1& c1, + C2& c2) { auto first1 = container_algorithm_internal::c_begin(c1); auto last1 = container_algorithm_internal::c_end(c1); auto first2 = container_algorithm_internal::c_begin(c2); @@ -365,8 +368,8 @@ c_mismatch(C1& c1, C2& c2) { // the function's test condition. Applies `pred`to the first N elements of `c1` // and `c2`, where N = min(size(c1), size(c2)). template <typename C1, typename C2, typename BinaryPredicate> -container_algorithm_internal::ContainerIterPairType<C1, C2> -c_mismatch(C1& c1, C2& c2, BinaryPredicate pred) { +container_algorithm_internal::ContainerIterPairType<C1, C2> c_mismatch( + C1& c1, C2& c2, BinaryPredicate pred) { auto first1 = container_algorithm_internal::c_begin(c1); auto last1 = container_algorithm_internal::c_end(c1); auto first2 = container_algorithm_internal::c_begin(c2); @@ -655,11 +658,10 @@ OutputIterator c_replace_copy(const C& c, OutputIterator result, T&& old_value, // some condition, and return the results within an iterator. template <typename C, typename OutputIterator, typename Pred, typename T> OutputIterator c_replace_copy_if(const C& c, OutputIterator result, Pred&& pred, - T&& new_value) { + const T& new_value) { return std::replace_copy_if(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), result, - std::forward<Pred>(pred), - std::forward<T>(new_value)); + std::forward<Pred>(pred), new_value); } // c_fill() @@ -667,9 +669,9 @@ OutputIterator c_replace_copy_if(const C& c, OutputIterator result, Pred&& pred, // Container-based version of the <algorithm> `std::fill()` function to fill a // container with some value. template <typename C, typename T> -void c_fill(C& c, T&& value) { +void c_fill(C& c, const T& value) { std::fill(container_algorithm_internal::c_begin(c), - container_algorithm_internal::c_end(c), std::forward<T>(value)); + container_algorithm_internal::c_end(c), value); } // c_fill_n() @@ -677,9 +679,8 @@ void c_fill(C& c, T&& value) { // Container-based version of the <algorithm> `std::fill_n()` function to fill // the first N elements in a container with some value. template <typename C, typename Size, typename T> -void c_fill_n(C& c, Size n, T&& value) { - std::fill_n(container_algorithm_internal::c_begin(c), n, - std::forward<T>(value)); +void c_fill_n(C& c, Size n, const T& value) { + std::fill_n(container_algorithm_internal::c_begin(c), n, value); } // c_generate() @@ -716,10 +717,11 @@ container_algorithm_internal::ContainerIter<C> c_generate_n(C& c, Size n, // copy a container's elements while removing any elements matching the given // `value`. template <typename C, typename OutputIterator, typename T> -OutputIterator c_remove_copy(const C& c, OutputIterator result, T&& value) { +OutputIterator c_remove_copy(const C& c, OutputIterator result, + const T& value) { return std::remove_copy(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), result, - std::forward<T>(value)); + value); } // c_remove_copy_if() @@ -905,11 +907,11 @@ void c_sort(C& c) { // Overload of c_sort() for performing a `comp` comparison other than the // default `operator<`. -template <typename C, typename Compare> -void c_sort(C& c, Compare&& comp) { +template <typename C, typename LessThan> +void c_sort(C& c, LessThan&& comp) { std::sort(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_stable_sort() @@ -925,11 +927,11 @@ void c_stable_sort(C& c) { // Overload of c_stable_sort() for performing a `comp` comparison other than the // default `operator<`. -template <typename C, typename Compare> -void c_stable_sort(C& c, Compare&& comp) { +template <typename C, typename LessThan> +void c_stable_sort(C& c, LessThan&& comp) { std::stable_sort(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_is_sorted() @@ -944,11 +946,11 @@ bool c_is_sorted(const C& c) { // c_is_sorted() overload for performing a `comp` comparison other than the // default `operator<`. -template <typename C, typename Compare> -bool c_is_sorted(const C& c, Compare&& comp) { +template <typename C, typename LessThan> +bool c_is_sorted(const C& c, LessThan&& comp) { return std::is_sorted(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_partial_sort() @@ -966,14 +968,14 @@ void c_partial_sort( // Overload of c_partial_sort() for performing a `comp` comparison other than // the default `operator<`. -template <typename RandomAccessContainer, typename Compare> +template <typename RandomAccessContainer, typename LessThan> void c_partial_sort( RandomAccessContainer& sequence, container_algorithm_internal::ContainerIter<RandomAccessContainer> middle, - Compare&& comp) { + LessThan&& comp) { std::partial_sort(container_algorithm_internal::c_begin(sequence), middle, container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_partial_sort_copy() @@ -994,15 +996,15 @@ c_partial_sort_copy(const C& sequence, RandomAccessContainer& result) { // Overload of c_partial_sort_copy() for performing a `comp` comparison other // than the default `operator<`. -template <typename C, typename RandomAccessContainer, typename Compare> +template <typename C, typename RandomAccessContainer, typename LessThan> container_algorithm_internal::ContainerIter<RandomAccessContainer> c_partial_sort_copy(const C& sequence, RandomAccessContainer& result, - Compare&& comp) { + LessThan&& comp) { return std::partial_sort_copy(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), container_algorithm_internal::c_begin(result), container_algorithm_internal::c_end(result), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_is_sorted_until() @@ -1018,12 +1020,12 @@ container_algorithm_internal::ContainerIter<C> c_is_sorted_until(C& c) { // Overload of c_is_sorted_until() for performing a `comp` comparison other than // the default `operator<`. -template <typename C, typename Compare> +template <typename C, typename LessThan> container_algorithm_internal::ContainerIter<C> c_is_sorted_until( - C& c, Compare&& comp) { + C& c, LessThan&& comp) { return std::is_sorted_until(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_nth_element() @@ -1043,14 +1045,14 @@ void c_nth_element( // Overload of c_nth_element() for performing a `comp` comparison other than // the default `operator<`. -template <typename RandomAccessContainer, typename Compare> +template <typename RandomAccessContainer, typename LessThan> void c_nth_element( RandomAccessContainer& sequence, container_algorithm_internal::ContainerIter<RandomAccessContainer> nth, - Compare&& comp) { + LessThan&& comp) { std::nth_element(container_algorithm_internal::c_begin(sequence), nth, container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } //------------------------------------------------------------------------------ @@ -1064,20 +1066,19 @@ void c_nth_element( // which does not compare less than `value`. template <typename Sequence, typename T> container_algorithm_internal::ContainerIter<Sequence> c_lower_bound( - Sequence& sequence, T&& value) { + Sequence& sequence, const T& value) { return std::lower_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value)); + container_algorithm_internal::c_end(sequence), value); } // Overload of c_lower_bound() for performing a `comp` comparison other than // the default `operator<`. -template <typename Sequence, typename T, typename Compare> +template <typename Sequence, typename T, typename LessThan> container_algorithm_internal::ContainerIter<Sequence> c_lower_bound( - Sequence& sequence, T&& value, Compare&& comp) { + Sequence& sequence, const T& value, LessThan&& comp) { return std::lower_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value), std::forward<Compare>(comp)); + container_algorithm_internal::c_end(sequence), value, + std::forward<LessThan>(comp)); } // c_upper_bound() @@ -1087,20 +1088,19 @@ container_algorithm_internal::ContainerIter<Sequence> c_lower_bound( // which is greater than `value`. template <typename Sequence, typename T> container_algorithm_internal::ContainerIter<Sequence> c_upper_bound( - Sequence& sequence, T&& value) { + Sequence& sequence, const T& value) { return std::upper_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value)); + container_algorithm_internal::c_end(sequence), value); } // Overload of c_upper_bound() for performing a `comp` comparison other than // the default `operator<`. -template <typename Sequence, typename T, typename Compare> +template <typename Sequence, typename T, typename LessThan> container_algorithm_internal::ContainerIter<Sequence> c_upper_bound( - Sequence& sequence, T&& value, Compare&& comp) { + Sequence& sequence, const T& value, LessThan&& comp) { return std::upper_bound(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value), std::forward<Compare>(comp)); + container_algorithm_internal::c_end(sequence), value, + std::forward<LessThan>(comp)); } // c_equal_range() @@ -1110,20 +1110,19 @@ container_algorithm_internal::ContainerIter<Sequence> c_upper_bound( // sorted container which compare equal to `value`. template <typename Sequence, typename T> container_algorithm_internal::ContainerIterPairType<Sequence, Sequence> -c_equal_range(Sequence& sequence, T&& value) { +c_equal_range(Sequence& sequence, const T& value) { return std::equal_range(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value)); + container_algorithm_internal::c_end(sequence), value); } // Overload of c_equal_range() for performing a `comp` comparison other than // the default `operator<`. -template <typename Sequence, typename T, typename Compare> +template <typename Sequence, typename T, typename LessThan> container_algorithm_internal::ContainerIterPairType<Sequence, Sequence> -c_equal_range(Sequence& sequence, T&& value, Compare&& comp) { +c_equal_range(Sequence& sequence, const T& value, LessThan&& comp) { return std::equal_range(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value), std::forward<Compare>(comp)); + container_algorithm_internal::c_end(sequence), value, + std::forward<LessThan>(comp)); } // c_binary_search() @@ -1132,20 +1131,20 @@ c_equal_range(Sequence& sequence, T&& value, Compare&& comp) { // to test if any element in the sorted container contains a value equivalent to // 'value'. template <typename Sequence, typename T> -bool c_binary_search(Sequence&& sequence, T&& value) { +bool c_binary_search(const Sequence& sequence, const T& value) { return std::binary_search(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<T>(value)); + value); } // Overload of c_binary_search() for performing a `comp` comparison other than // the default `operator<`. -template <typename Sequence, typename T, typename Compare> -bool c_binary_search(Sequence&& sequence, T&& value, Compare&& comp) { +template <typename Sequence, typename T, typename LessThan> +bool c_binary_search(const Sequence& sequence, const T& value, + LessThan&& comp) { return std::binary_search(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<T>(value), - std::forward<Compare>(comp)); + value, std::forward<LessThan>(comp)); } //------------------------------------------------------------------------------ @@ -1166,14 +1165,14 @@ OutputIterator c_merge(const C1& c1, const C2& c2, OutputIterator result) { // Overload of c_merge() for performing a `comp` comparison other than // the default `operator<`. -template <typename C1, typename C2, typename OutputIterator, typename Compare> +template <typename C1, typename C2, typename OutputIterator, typename LessThan> OutputIterator c_merge(const C1& c1, const C2& c2, OutputIterator result, - Compare&& comp) { + LessThan&& comp) { return std::merge(container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), container_algorithm_internal::c_end(c2), result, - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_inplace_merge() @@ -1189,13 +1188,13 @@ void c_inplace_merge(C& c, // Overload of c_inplace_merge() for performing a merge using a `comp` other // than `operator<`. -template <typename C, typename Compare> +template <typename C, typename LessThan> void c_inplace_merge(C& c, container_algorithm_internal::ContainerIter<C> middle, - Compare&& comp) { + LessThan&& comp) { std::inplace_merge(container_algorithm_internal::c_begin(c), middle, container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_includes() @@ -1213,13 +1212,13 @@ bool c_includes(const C1& c1, const C2& c2) { // Overload of c_includes() for performing a merge using a `comp` other than // `operator<`. -template <typename C1, typename C2, typename Compare> -bool c_includes(const C1& c1, const C2& c2, Compare&& comp) { +template <typename C1, typename C2, typename LessThan> +bool c_includes(const C1& c1, const C2& c2, LessThan&& comp) { return std::includes(container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), container_algorithm_internal::c_end(c2), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_set_union() @@ -1243,7 +1242,7 @@ OutputIterator c_set_union(const C1& c1, const C2& c2, OutputIterator output) { // Overload of c_set_union() for performing a merge using a `comp` other than // `operator<`. -template <typename C1, typename C2, typename OutputIterator, typename Compare, +template <typename C1, typename C2, typename OutputIterator, typename LessThan, typename = typename std::enable_if< !container_algorithm_internal::IsUnorderedContainer<C1>::value, void>::type, @@ -1251,18 +1250,18 @@ template <typename C1, typename C2, typename OutputIterator, typename Compare, !container_algorithm_internal::IsUnorderedContainer<C2>::value, void>::type> OutputIterator c_set_union(const C1& c1, const C2& c2, OutputIterator output, - Compare&& comp) { + LessThan&& comp) { return std::set_union(container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), container_algorithm_internal::c_end(c2), output, - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_set_intersection() // // Container-based version of the <algorithm> `std::set_intersection()` function -// to return an iterator containing the intersection of two containers. +// to return an iterator containing the intersection of two sorted containers. template <typename C1, typename C2, typename OutputIterator, typename = typename std::enable_if< !container_algorithm_internal::IsUnorderedContainer<C1>::value, @@ -1272,6 +1271,11 @@ template <typename C1, typename C2, typename OutputIterator, void>::type> OutputIterator c_set_intersection(const C1& c1, const C2& c2, OutputIterator output) { + // In debug builds, ensure that both containers are sorted with respect to the + // default comparator. std::set_intersection requires the containers be sorted + // using operator<. + assert(absl::c_is_sorted(c1)); + assert(absl::c_is_sorted(c2)); return std::set_intersection(container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), @@ -1280,7 +1284,7 @@ OutputIterator c_set_intersection(const C1& c1, const C2& c2, // Overload of c_set_intersection() for performing a merge using a `comp` other // than `operator<`. -template <typename C1, typename C2, typename OutputIterator, typename Compare, +template <typename C1, typename C2, typename OutputIterator, typename LessThan, typename = typename std::enable_if< !container_algorithm_internal::IsUnorderedContainer<C1>::value, void>::type, @@ -1288,12 +1292,17 @@ template <typename C1, typename C2, typename OutputIterator, typename Compare, !container_algorithm_internal::IsUnorderedContainer<C2>::value, void>::type> OutputIterator c_set_intersection(const C1& c1, const C2& c2, - OutputIterator output, Compare&& comp) { + OutputIterator output, LessThan&& comp) { + // In debug builds, ensure that both containers are sorted with respect to the + // default comparator. std::set_intersection requires the containers be sorted + // using the same comparator. + assert(absl::c_is_sorted(c1, comp)); + assert(absl::c_is_sorted(c2, comp)); return std::set_intersection(container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), container_algorithm_internal::c_end(c2), output, - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_set_difference() @@ -1318,7 +1327,7 @@ OutputIterator c_set_difference(const C1& c1, const C2& c2, // Overload of c_set_difference() for performing a merge using a `comp` other // than `operator<`. -template <typename C1, typename C2, typename OutputIterator, typename Compare, +template <typename C1, typename C2, typename OutputIterator, typename LessThan, typename = typename std::enable_if< !container_algorithm_internal::IsUnorderedContainer<C1>::value, void>::type, @@ -1326,12 +1335,12 @@ template <typename C1, typename C2, typename OutputIterator, typename Compare, !container_algorithm_internal::IsUnorderedContainer<C2>::value, void>::type> OutputIterator c_set_difference(const C1& c1, const C2& c2, - OutputIterator output, Compare&& comp) { + OutputIterator output, LessThan&& comp) { return std::set_difference(container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), container_algorithm_internal::c_end(c2), output, - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_set_symmetric_difference() @@ -1357,7 +1366,7 @@ OutputIterator c_set_symmetric_difference(const C1& c1, const C2& c2, // Overload of c_set_symmetric_difference() for performing a merge using a // `comp` other than `operator<`. -template <typename C1, typename C2, typename OutputIterator, typename Compare, +template <typename C1, typename C2, typename OutputIterator, typename LessThan, typename = typename std::enable_if< !container_algorithm_internal::IsUnorderedContainer<C1>::value, void>::type, @@ -1366,13 +1375,13 @@ template <typename C1, typename C2, typename OutputIterator, typename Compare, void>::type> OutputIterator c_set_symmetric_difference(const C1& c1, const C2& c2, OutputIterator output, - Compare&& comp) { + LessThan&& comp) { return std::set_symmetric_difference( container_algorithm_internal::c_begin(c1), container_algorithm_internal::c_end(c1), container_algorithm_internal::c_begin(c2), container_algorithm_internal::c_end(c2), output, - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } //------------------------------------------------------------------------------ @@ -1391,11 +1400,11 @@ void c_push_heap(RandomAccessContainer& sequence) { // Overload of c_push_heap() for performing a push operation on a heap using a // `comp` other than `operator<`. -template <typename RandomAccessContainer, typename Compare> -void c_push_heap(RandomAccessContainer& sequence, Compare&& comp) { +template <typename RandomAccessContainer, typename LessThan> +void c_push_heap(RandomAccessContainer& sequence, LessThan&& comp) { std::push_heap(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_pop_heap() @@ -1410,11 +1419,11 @@ void c_pop_heap(RandomAccessContainer& sequence) { // Overload of c_pop_heap() for performing a pop operation on a heap using a // `comp` other than `operator<`. -template <typename RandomAccessContainer, typename Compare> -void c_pop_heap(RandomAccessContainer& sequence, Compare&& comp) { +template <typename RandomAccessContainer, typename LessThan> +void c_pop_heap(RandomAccessContainer& sequence, LessThan&& comp) { std::pop_heap(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_make_heap() @@ -1429,11 +1438,11 @@ void c_make_heap(RandomAccessContainer& sequence) { // Overload of c_make_heap() for performing heap comparisons using a // `comp` other than `operator<` -template <typename RandomAccessContainer, typename Compare> -void c_make_heap(RandomAccessContainer& sequence, Compare&& comp) { +template <typename RandomAccessContainer, typename LessThan> +void c_make_heap(RandomAccessContainer& sequence, LessThan&& comp) { std::make_heap(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_sort_heap() @@ -1448,11 +1457,11 @@ void c_sort_heap(RandomAccessContainer& sequence) { // Overload of c_sort_heap() for performing heap comparisons using a // `comp` other than `operator<` -template <typename RandomAccessContainer, typename Compare> -void c_sort_heap(RandomAccessContainer& sequence, Compare&& comp) { +template <typename RandomAccessContainer, typename LessThan> +void c_sort_heap(RandomAccessContainer& sequence, LessThan&& comp) { std::sort_heap(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_is_heap() @@ -1467,11 +1476,11 @@ bool c_is_heap(const RandomAccessContainer& sequence) { // Overload of c_is_heap() for performing heap comparisons using a // `comp` other than `operator<` -template <typename RandomAccessContainer, typename Compare> -bool c_is_heap(const RandomAccessContainer& sequence, Compare&& comp) { +template <typename RandomAccessContainer, typename LessThan> +bool c_is_heap(const RandomAccessContainer& sequence, LessThan&& comp) { return std::is_heap(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_is_heap_until() @@ -1487,12 +1496,12 @@ c_is_heap_until(RandomAccessContainer& sequence) { // Overload of c_is_heap_until() for performing heap comparisons using a // `comp` other than `operator<` -template <typename RandomAccessContainer, typename Compare> +template <typename RandomAccessContainer, typename LessThan> container_algorithm_internal::ContainerIter<RandomAccessContainer> -c_is_heap_until(RandomAccessContainer& sequence, Compare&& comp) { +c_is_heap_until(RandomAccessContainer& sequence, LessThan&& comp) { return std::is_heap_until(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } //------------------------------------------------------------------------------ @@ -1513,12 +1522,12 @@ container_algorithm_internal::ContainerIter<Sequence> c_min_element( // Overload of c_min_element() for performing a `comp` comparison other than // `operator<`. -template <typename Sequence, typename Compare> +template <typename Sequence, typename LessThan> container_algorithm_internal::ContainerIter<Sequence> c_min_element( - Sequence& sequence, Compare&& comp) { + Sequence& sequence, LessThan&& comp) { return std::min_element(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_max_element() @@ -1535,12 +1544,12 @@ container_algorithm_internal::ContainerIter<Sequence> c_max_element( // Overload of c_max_element() for performing a `comp` comparison other than // `operator<`. -template <typename Sequence, typename Compare> +template <typename Sequence, typename LessThan> container_algorithm_internal::ContainerIter<Sequence> c_max_element( - Sequence& sequence, Compare&& comp) { + Sequence& sequence, LessThan&& comp) { return std::max_element(container_algorithm_internal::c_begin(sequence), container_algorithm_internal::c_end(sequence), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_minmax_element() @@ -1550,20 +1559,20 @@ container_algorithm_internal::ContainerIter<Sequence> c_max_element( // smallest and largest values, respectively, using `operator<` to make the // comparisons. template <typename C> -container_algorithm_internal::ContainerIterPairType<C, C> -c_minmax_element(C& c) { +container_algorithm_internal::ContainerIterPairType<C, C> c_minmax_element( + C& c) { return std::minmax_element(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c)); } // Overload of c_minmax_element() for performing `comp` comparisons other than // `operator<`. -template <typename C, typename Compare> -container_algorithm_internal::ContainerIterPairType<C, C> -c_minmax_element(C& c, Compare&& comp) { +template <typename C, typename LessThan> +container_algorithm_internal::ContainerIterPairType<C, C> c_minmax_element( + C& c, LessThan&& comp) { return std::minmax_element(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } //------------------------------------------------------------------------------ @@ -1578,7 +1587,8 @@ c_minmax_element(C& c, Compare&& comp) { // that capital letters ("A-Z") have ASCII values less than lowercase letters // ("a-z"). template <typename Sequence1, typename Sequence2> -bool c_lexicographical_compare(Sequence1&& sequence1, Sequence2&& sequence2) { +bool c_lexicographical_compare(const Sequence1& sequence1, + const Sequence2& sequence2) { return std::lexicographical_compare( container_algorithm_internal::c_begin(sequence1), container_algorithm_internal::c_end(sequence1), @@ -1588,15 +1598,15 @@ bool c_lexicographical_compare(Sequence1&& sequence1, Sequence2&& sequence2) { // Overload of c_lexicographical_compare() for performing a lexicographical // comparison using a `comp` operator instead of `operator<`. -template <typename Sequence1, typename Sequence2, typename Compare> -bool c_lexicographical_compare(Sequence1&& sequence1, Sequence2&& sequence2, - Compare&& comp) { +template <typename Sequence1, typename Sequence2, typename LessThan> +bool c_lexicographical_compare(const Sequence1& sequence1, + const Sequence2& sequence2, LessThan&& comp) { return std::lexicographical_compare( container_algorithm_internal::c_begin(sequence1), container_algorithm_internal::c_end(sequence1), container_algorithm_internal::c_begin(sequence2), container_algorithm_internal::c_end(sequence2), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_next_permutation() @@ -1612,11 +1622,11 @@ bool c_next_permutation(C& c) { // Overload of c_next_permutation() for performing a lexicographical // comparison using a `comp` operator instead of `operator<`. -template <typename C, typename Compare> -bool c_next_permutation(C& c, Compare&& comp) { +template <typename C, typename LessThan> +bool c_next_permutation(C& c, LessThan&& comp) { return std::next_permutation(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } // c_prev_permutation() @@ -1632,11 +1642,11 @@ bool c_prev_permutation(C& c) { // Overload of c_prev_permutation() for performing a lexicographical // comparison using a `comp` operator instead of `operator<`. -template <typename C, typename Compare> -bool c_prev_permutation(C& c, Compare&& comp) { +template <typename C, typename LessThan> +bool c_prev_permutation(C& c, LessThan&& comp) { return std::prev_permutation(container_algorithm_internal::c_begin(c), container_algorithm_internal::c_end(c), - std::forward<Compare>(comp)); + std::forward<LessThan>(comp)); } //------------------------------------------------------------------------------ @@ -1645,18 +1655,18 @@ bool c_prev_permutation(C& c, Compare&& comp) { // c_iota() // -// Container-based version of the <algorithm> `std::iota()` function +// Container-based version of the <numeric> `std::iota()` function // to compute successive values of `value`, as if incremented with `++value` // after each element is written. and write them to the container. template <typename Sequence, typename T> -void c_iota(Sequence& sequence, T&& value) { +void c_iota(Sequence& sequence, const T& value) { std::iota(container_algorithm_internal::c_begin(sequence), - container_algorithm_internal::c_end(sequence), - std::forward<T>(value)); + container_algorithm_internal::c_end(sequence), value); } + // c_accumulate() // -// Container-based version of the <algorithm> `std::accumulate()` function +// Container-based version of the <numeric> `std::accumulate()` function // to accumulate the element values of a container to `init` and return that // accumulation by value. // @@ -1683,7 +1693,7 @@ decay_t<T> c_accumulate(const Sequence& sequence, T&& init, // c_inner_product() // -// Container-based version of the <algorithm> `std::inner_product()` function +// Container-based version of the <numeric> `std::inner_product()` function // to compute the cumulative inner product of container element pairs. // // Note: Due to a language technicality this function has return type @@ -1714,7 +1724,7 @@ decay_t<T> c_inner_product(const Sequence1& factors1, const Sequence2& factors2, // c_adjacent_difference() // -// Container-based version of the <algorithm> `std::adjacent_difference()` +// Container-based version of the <numeric> `std::adjacent_difference()` // function to compute the difference between each element and the one preceding // it and write it to an iterator. template <typename InputSequence, typename OutputIt> @@ -1737,7 +1747,7 @@ OutputIt c_adjacent_difference(const InputSequence& input, // c_partial_sum() // -// Container-based version of the <algorithm> `std::partial_sum()` function +// Container-based version of the <numeric> `std::partial_sum()` function // to compute the partial sum of the elements in a sequence and write them // to an iterator. The partial sum is the sum of all element values so far in // the sequence. |