u8_mbtouc 218 maint/gnulib/lib/unistr.in.h u8_mbtouc (ucs4_t *puc, const uint8_t *s, size_t n) u8_mbtouc 31 maint/gnulib/lib/unistr/u8-mbtouc.c u8_mbtouc (ucs4_t *puc, const uint8_t *s, size_t n)