iconv_open - allocate descriptor for character set conversion

       For an explanation of the terms used in this section, see attributes(7).
       ┌──────────────────────────────────────────────────────────────────────┬───────────────┬────────────────┐
       │ Interface                                                            │ Attribute     │ Value          │
       ├──────────────────────────────────────────────────────────────────────┼───────────────┼────────────────┤
       │ iconv_open()                                                         │ Thread safety │ MT-Safe locale │
       └──────────────────────────────────────────────────────────────────────┴───────────────┴────────────────┘

       The  iconv_open()  function allocates a conversion descriptor suitable for converting byte sequences from
       character encoding fromcode to character encoding tocode.

       The values permitted for fromcode and tocode and the supported combinations  are  system-dependent.   For
       the  GNU  C library, the permitted values are listed by the iconv--list command, and all combinations of
       the listed values are supported.  Furthermore the GNU C library and the GNU libiconv library support  the
       following two suffixes:

       //TRANSLIT
              When the string "//TRANSLIT" is appended to tocode, transliteration is activated.  This means that
              when a character cannot be represented in the target character set, it can be approximated through
              one or several similarly looking characters.

       //IGNORE
              When  the  string  "//IGNORE"  is appended to tocode, characters that cannot be represented in the
              target character set will be silently discarded.

       The resulting conversion descriptor can be used with iconv(3) any number  of  times.   It  remains  valid
       until deallocated using iconv_close(3).

       A  conversion descriptor contains a conversion state.  After creation using iconv_open(), the state is in
       the initial state.  Using iconv(3) modifies the descriptor's conversion state.  To bring the  state  back
       to the initial state, use iconv(3) with NULL as inbuf argument.

       The following error can occur, among others:

       EINVAL The conversion from fromcode to tocode is not supported by the implementation.

       glibc 2.1.  POSIX.1-2001, SUSv2.

       Standard C library (libc, -lc)

       iconv_open - allocate descriptor for character set conversion

       On  success,  iconv_open()  returns  a  freshly  allocated conversion descriptor.  On failure, it returns
       (iconv_t)-1 and sets errno to indicate the error.

iconv(1), iconv(3), iconv_close(3)

Linux man-pages 6.9.1                              2024-05-02                                      iconv_open(3)

       POSIX.1-2008.

#include<iconv.h>iconv_ticonv_open(constchar*tocode,constchar*fromcode);