| 88 | |
| 89 | IteratorStep begin() { return IteratorStep(this, 0); } |
| 90 | IteratorStep at(int64 loc) { |
| 91 | CHECK(loc >= 0 && loc <= ix_.dim_size(0)) |
| 92 | << "loc provided must lie between 0 and " << ix_.dim_size(0); |
| 93 | return IteratorStep(this, loc); |
| 94 | } |
| 95 | IteratorStep end() { return IteratorStep(this, ix_.dim_size(0)); } |
| 96 | |
| 97 | template <typename TIX> |