| // { dg-do run { target c++23 } } |
| |
| #include <numeric> |
| #include <testsuite_hooks.h> |
| #include <testsuite_iterators.h> |
| |
| #if __cpp_lib_ranges_iota != 202202L |
| # error "Feature-test macro __cpp_lib_ranges_iota has wrong value in <numeric>" |
| #endif |
| |
| namespace ranges = std::ranges; |
| |
| void |
| test01() |
| { |
| int x[3] = {}; |
| __gnu_test::test_output_range<int> rx(x); |
| auto r0 = ranges::iota(rx, 0); |
| VERIFY( r0.out.ptr == x+3 ); |
| VERIFY( r0.value == 3 ); |
| VERIFY( ranges::equal(x, (int[]){0,1,2}) ); |
| auto r1 = ranges::iota(x, x+2, 5); |
| VERIFY( r1.out == x+2 ); |
| VERIFY( r1.value == 7 ); |
| VERIFY( ranges::equal(x, (int[]){5,6,2}) ); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| } |
