iconv_close − deallocate descriptor for character set conversion
#include <iconv.h>
int iconv_close (iconv_t cd);
The iconv_close function deallocates a conversion descriptor cd previously allocated using iconv_open.
When successful, the iconv_close function returns 0. In case of error, it sets errno and returns −1.
POSIX:2001
iconv_open(3) iconv(3)