decompose-internal
int uc_compat_decomposition (ucs4_t uc, ucs4_t *decomposition);
ucs4_t uc
ucs4_t *decomposition
void gl_uninorm_decompose_merge_sort_inplace (struct ucs4_with_ccc *src, size_t n, struct ucs4_with_ccc *tmp);
struct ucs4_with_ccc *src
size_t n
struct ucs4_with_ccc *tmp
struct ucs4_with_ccc { ucs4_t code; int ccc; /* range 0..255 */ };