+/* Converts an entire Unicode string, possibly including NUL units, from a
+ Unicode encoding to a given encoding.
+ Converts a memory region to encoding TOCODE. TOCODE is as for
+ iconv_open(3).
+ The input is in the memory region between SRC (inclusive) and SRC + SRCLEN
+ (exclusive).
+ If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this
+ array is filled with offsets into the result, i.e. the character starting
+ at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]],
+ and other offsets are set to (size_t)(-1).
+ *RESULTP and *LENGTH should initially be a scratch buffer and its size,
+ or *RESULTP can initially be NULL.
+ May erase the contents of the memory at *RESULTP.
+ Return value: 0 if successful, otherwise -1 and errno set.
+ If successful: The resulting string is stored in *RESULTP and its length
+ in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is
+ unchanged if no dynamic memory allocation was necessary.
+ Particular errno values: EINVAL, EILSEQ, ENOMEM. */
+extern int
+ u8_conv_to_encoding (const char *tocode,
+ enum iconv_ilseq_handler handler,
+ const uint8_t *src, size_t srclen,
+ size_t *offsets,
+ char **resultp, size_t *lengthp);
+extern int
+ u16_conv_to_encoding (const char *tocode,
+ enum iconv_ilseq_handler handler,
+ const uint16_t *src, size_t srclen,
+ size_t *offsets,
+ char **resultp, size_t *lengthp);
+extern int
+ u32_conv_to_encoding (const char *tocode,
+ enum iconv_ilseq_handler handler,
+ const uint32_t *src, size_t srclen,
+ size_t *offsets,
+ char **resultp, size_t *lengthp);
+