using namespace std;
-static int memcmp_different_len(const void *s1, size_t n1, const void *s2, size_t n2)
+static inline int memcmp_different_len(const void *s1, size_t n1, const void *s2, size_t n2)
{
- int shared_len = min(n1, n2);
+ size_t shared_len = min(n1, n2);
+ if (shared_len >= 8) {
+ uint64_t a1 = *(const uint64_t *)s1;
+ uint64_t a2 = *(const uint64_t *)s2;
+ if (a1 != a2) {
+ a1 = __builtin_bswap64(a1);
+ a2 = __builtin_bswap64(a2);
+ return (a1 < a2) ? -1 : 1;
+ }
+ }
+
int s = memcmp(s1, s2, shared_len);
if (s != 0) {
return s;
}
- if (n1 < n2) {
- return -1;
- } else if (n1 > n2) {
- return 1;
- } else {
- return 0;
- }
+ return n2 - n1;
}
enum Result { WHITE = 0, DRAW, BLACK };
struct Element {
- char *bpfen;
+ char *bpfen; // includes prev_board_hash
int bpfen_len;
char move[8]; // Na1xc3+
Result result;
e.bpfen_len != shard->elems[i + 1].bpfen_len ||
memcmp(e.bpfen, shard->elems[i + 1].bpfen, e.bpfen_len) != 0) {
c.SerializeToString(&buf);
- mtbl_writer_add(mtbl,
+ mtbl_res res = mtbl_writer_add(mtbl,
(const uint8_t *)e.bpfen, e.bpfen_len,
(const uint8_t *)buf.data(), buf.size());
+ assert(res == mtbl_res_success);
c = Count();
moves.clear();
}