uint32_t *utf32_casefold_compat(const uint32_t *s, size_t ns, size_t *ndp);
char *utf8_casefold_compat(const char *s, size_t ns, size_t *ndp);
-int utf32_is_gcb(const uint32_t *s, size_t ns, size_t n);
+int utf32_is_grapheme_boundary(const uint32_t *s, size_t ns, size_t n);
int utf32_is_word_boundary(const uint32_t *s, size_t ns, size_t n);
#endif /* UNICODE_H */