The iconv_close() function shall deallocate the conversion descriptor
cd and all other associated resources
allocated by iconv_open().
If a file descriptor is used to implement the type iconv_t,
that file descriptor shall be closed.
Upon successful completion, 0 shall be returned; otherwise, -1 shall
be returned and errno set to indicate the error.
The iconv_close() function may fail if:
The conversion descriptor is invalid.
The following sections are informative.
iconv() , iconv_open() , the Base Definitions volume of
IEEE Std 1003.1-2001, <iconv.h>
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at