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| typedef simd_t __m256i; | |
| // specialized for every container type | |
| simd_t container_to_chunk(const container_t * array, size_t chunk_position); | |
| // intersecting any 2 types of containers | |
| container_intersection(const container *a, const container *b, bitset *dst) { | |
| // promote dst to bitset | |
| for (i = 0; i < N_CHUNKS; ++i) { | |
| simd_t chunk_a = container_to_chunk(a, i); | |
| simd_t chunk_b = container_to_chunk(b, i); | |
| simd_t *addr = &((simd_t*) dst->array)[i] | |
| _mm_save(addr, _mm_intersection(a, b)); | |
| // dst->cardinality += popcount(addr) | |
| } | |
| // optionnally promote dst to best suited container | |
| return dst; | |
| } |
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