tests/unit-iterators2: use std::ranges::equals for range comparisons #3950
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This fixes a build error on GCC 13:
/home/arsen/nlohmann_json/tests/src/unit-iterators2.cpp: In function ‘void _DOCTEST_ANON_FUNC_2()’:
/home/arsen/nlohmann_json/tests/src/unit-iterators2.cpp:946:32: error: no match for ‘operator==’ (operand types are ‘doctest::detail::Expression_lhs<std::ranges::reverse_view<std::ranges::ref_view<nlohmann::json_abi_v3_11_2::basic_json<> > >&>’ and ‘nlohmann::json_abi_v3_11_2::json’ {aka ‘nlohmann::json_abi_v3_11_2::basic_json<>’})
946 | CHECK(reversed == j_expected);
| ^~ ~~~~~~~~~~
| |
| nlohmann::json_abi_v3_11_2::json {aka nlohmann::json_abi_v3_11_2::basic_json<>}
Bug: https://bugs.gentoo.org/895692
Closes: #3927
This PR also depends on trofis PR: #3895
Tested on x86_64-pc-linux-gnu in the default CMake configuration.
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