- {
- if (min (PTRDIFF_MAX, SIZE_MAX) / 2 - 1 - path_len < next_len)
- memory_full (SIZE_MAX);
- path_size = (path_len + next_len + 1) * 2;
- path = xrealloc (path, path_size);
- }
+ path = xpalloc (path, &path_size, path_len - path_size + next_len + 1,
+ -1, sizeof *path);