iconv_close - charset converter deallocation function
#include <iconv.h>
int iconv_close(iconv_t cd);
The iconv_close() function deallocates the conversion descriptor
cd and all other associated resources allocated by the
iconv_open(3) function.
If a file descriptor is used to implement the type iconv_t,
that file descriptor will be closed.
Upon successful completion, iconv_close() returns 0; otherwise, it
returns -1 and sets errno to indicate the error.
The iconv_close() function may fail if:
- EBADF
- The conversion descriptor is invalid.