btowc(3) Library Functions Manual btowc(3) btowc - (libc -lc) #include wint_t btowc(int c); btowc() c 1 . c EOF 1 btowc() WEOF. btowc() c. c EOF 1 WEOF. attributes(7). +------------+------------------------------------+--------------------+ || | | +------------+------------------------------------+--------------------+ |btowc() | | MT-Safe | +------------+------------------------------------+--------------------+ C11, POSIX.1-2008. C99 POSIX.1-2001. btowc() LC_CTYPE . . . mbtowc(3) mbrtowc(3) . mbrtowc(3), mbtowc(3), wctob(3) 3 . . : . 6.18 8 2026 btowc(3)