| // { dg-do compile { target c++20 } } |
| |
| // Bug 121919 ranges::shuffle assumes a uniform_random_bit_generator |
| // provides result_type |
| |
| #include <algorithm> |
| #include <testsuite_iterators.h> |
| |
| struct G |
| { |
| constexpr static unsigned min() { return 0; } |
| constexpr static unsigned max() { return 10; } |
| unsigned operator()() const; |
| }; |
| |
| static_assert(std::uniform_random_bit_generator<G>); |
| |
| void |
| test_pr121919() |
| { |
| int arr[2]{ 1, 2 }; |
| __gnu_test::test_random_access_range r(arr); |
| std::ranges::shuffle(r, G{}); |
| std::ranges::shuffle(std::ranges::begin(r), std::ranges::end(r), G{}); |
| } |
