| // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-options "-std=gnu++2a" } |
| // { dg-do run { target c++2a } } |
| |
| #include <algorithm> |
| #include <testsuite_hooks.h> |
| #include <testsuite_iterators.h> |
| |
| using __gnu_test::test_range; |
| using __gnu_test::input_iterator_wrapper; |
| using __gnu_test::output_iterator_wrapper; |
| using __gnu_test::forward_iterator_wrapper; |
| |
| namespace ranges = std::ranges; |
| |
| template<template<typename> typename source_wrapper, |
| template<typename> typename dest_wrapper> |
| void |
| test01() |
| { |
| int x[6] = {0, 0, 0, 1, 1, 1}; |
| int y[2]; |
| const int z[2] = {0, 1}; |
| |
| test_range<int, source_wrapper> rx(x); |
| test_range<int, dest_wrapper> ry(y); |
| auto [in,out] = ranges::unique_copy(rx, ry.begin()); |
| VERIFY( in == ranges::end(rx) && out == ranges::end(ry) ); |
| VERIFY( ranges::equal(y, z) ); |
| } |
| |
| template<template<typename> typename source_wrapper, |
| template<typename> typename dest_wrapper> |
| void |
| test02() |
| { |
| int x[6] = {0, 0, 0, 1, 1, 1}; |
| int y[2] = {0, 0}; |
| const int z[2] = {0, 0}; |
| |
| test_range<int, source_wrapper> rx(x, x); |
| test_range<int, dest_wrapper> ry(y, y); |
| auto [in, out] = ranges::unique_copy(rx.begin(), rx.end(), ry.begin()); |
| VERIFY( in.ptr == x && out.ptr == y ); |
| VERIFY( ranges::equal(y, z) ); |
| } |
| |
| template<template<typename> typename source_wrapper, |
| template<typename> typename dest_wrapper> |
| void |
| test03() |
| { |
| struct X { int i; }; |
| X x[6] = { {1}, {2}, {2}, {4}, {4}, {6} }; |
| X y[4] = { {1}, {2}, {4}, {6} }; |
| const X z[4] = { {1}, {2}, {4}, {6} }; |
| |
| test_range<X, source_wrapper> rx(x); |
| test_range<X, dest_wrapper> ry(y); |
| auto [in, out] |
| = ranges::unique_copy(rx, ry.begin(), ranges::equal_to{}, &X::i); |
| VERIFY( in == ranges::end(rx) && out == ranges::end(ry) ); |
| VERIFY( ranges::equal(y, z, {}, &X::i, &X::i) ); |
| } |
| |
| constexpr bool |
| test04() |
| { |
| struct X { int i; }; |
| X x[7] = { {1}, {2}, {2}, {2}, {4}, {4}, {6} }; |
| X y[4] = { {1}, {2}, {4}, {6} }; |
| const X z[4] = { {1}, {2}, {4}, {6} }; |
| |
| auto [in, out] |
| = ranges::unique_copy(x, x+7, y, ranges::equal_to{}, &X::i); |
| return (in == ranges::end(x) |
| && out == ranges::end(y) |
| && ranges::equal(y, z, {}, &X::i, &X::i)); |
| } |
| |
| int |
| main() |
| { |
| test01<input_iterator_wrapper, output_iterator_wrapper>(); |
| test01<input_iterator_wrapper, forward_iterator_wrapper>(); |
| test01<forward_iterator_wrapper, output_iterator_wrapper>(); |
| |
| test02<input_iterator_wrapper, output_iterator_wrapper>(); |
| test02<input_iterator_wrapper, forward_iterator_wrapper>(); |
| test02<forward_iterator_wrapper, output_iterator_wrapper>(); |
| |
| test03<input_iterator_wrapper, output_iterator_wrapper>(); |
| test03<input_iterator_wrapper, forward_iterator_wrapper>(); |
| test03<forward_iterator_wrapper, output_iterator_wrapper>(); |
| |
| static_assert(test04()); |
| } |