| 434 | |
| 435 | TCB_SPAN_CONSTEXPR11 span<element_type, dynamic_extent> |
| 436 | first(size_type count) const |
| 437 | { |
| 438 | TCB_SPAN_EXPECT(count <= size()); |
| 439 | return {data(), count}; |
| 440 | } |
| 441 | |
| 442 | TCB_SPAN_CONSTEXPR11 span<element_type, dynamic_extent> |
| 443 | last(size_type count) const |