wint_t
btowc(
int c
)
)
function converts a single byte character
c
in the initial shift state of the current locale to a corresponding
wide character.
The behaviour of
btowc()
is affected by the
LC_CTYPE
category of the current locale.
)
function returns:
WEOF
c
is
EOF
or if (unsigned char)
c
does not correspond to a valid single byte character representation.
c
.
)
function conforms to
ISO/IEC 9899/AMD1:1990 (``ISO C90'') .