btowc(3C) btowc(3C)
NAME
btowc(), wctob() - conversion between single-byte and wide character
SYNOPSIS
DESCRIPTION
The function determines whether c constitutes a valid (one-byte) character in the initial shift state.
The function determines whether c corresponds to a member of the extended character set whose character representation is a sin-
gle byte when in the initial shift state.
APPLICATION USAGE
The prototypes of these functions are available to applications if they are:
a. conformant.
b. Compiled with the macro with a value >=500.
c. Compiled with the macro with a value >= 200112.
EXTERNAL INFLUENCES
Environment Variables
The behavior of these functions is affected by the category.
RETURN VALUE
The function returns if c has the value or if c as an unsigned character does not constitute a valid (one-byte) character in the initial
shift state. Otherwise, it returns the wide character representation of that character.
The function returns if c does not correspond to a character with length one in the initial shift state. Otherwise, it returns the single-
byte representation of that character.
ERRORS
No errors are defined.
AUTHOR
was developed by HP and Mitsubishi Electric Corp.
SEE ALSO
thread_safety(5).
btowc(3C)
