iconv_close - codeset conversion deallocation function
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.
iconv(), iconv_open(), the Base Definitions volume of IEEE Std 1003.1-2001, <iconv.h>
First released in Issue 4. Derived from the HP-UX Manual.