struct strbuf buf = STRBUF_INIT;
size_t word_bits = bitsizeof(odb->loose_objects_subdir_seen[0]);
size_t word_index = subdir_nr / word_bits;
- size_t mask = 1 << (subdir_nr % word_bits);
+ size_t mask = 1u << (subdir_nr % word_bits);
uint32_t *bitmap;
if (subdir_nr < 0 ||