Function is_permutation

tests/SelfTest/IntrospectiveTests/Algorithms.tests.cpp:18–22

namespace {
    template <typename Range1, typename Range2>
    static bool is_permutation(Range1 const& r1, Range2 const& r2) {
        using std::begin; using std::end;
        return Catch::Detail::is_permutation(
            begin( r1 ), end( r1 ), begin( r2 ), end( r2 ), std::equal_to<>{} );
    }
}

TEST_CASE("is_permutation", "[algorithms][approvals]") {