g_utf16_to_utf8 (
  const gunichar2* str,
  glong len,
  glong* items_read,
  glong* items_written,
  GError** error


Convert a string from UTF-16 to UTF-8. The result will be terminated with a 0 byte.

Note that the input is expected to be already in native endianness, an initial byte-order-mark character is not handled specially. g_convert() can be used to convert a byte buffer of UTF-16 data of ambiguous endianness.

Further note that this function does not validate the result string; it may e.g. include embedded NUL characters. The only validation done by this function is to ensure that the input can be correctly interpreted as UTF-16, i.e. it doesn’t contain unpaired surrogates or partial character sequences.


str const gunichar2*

A UTF-16 encoded string.

 The data is owned by the caller of the function.
len glong

The maximum length (number of #gunichar2) of str to use. If len < 0, then the string is nul-terminated.

items_read glong*

Location to store number of words read, or NULL. If NULL, then G_CONVERT_ERROR_PARTIAL_INPUT will be returned in case str contains a trailing partial character. If an error occurs then the index of the invalid input is stored here.

 The argument will be set by the function.
 The argument can be NULL.
items_written glong*

Location to store number of bytes written, or NULL. The value stored here does not include the trailing 0 byte.

 The argument will be set by the function.
 The argument can be NULL.
error GError **
  The return location for a GError*, or NULL.

Return value

Returns: gchar*

A pointer to a newly allocated UTF-8 string. This value must be freed with g_free(). If an error occurs, NULL will be returned and error set.

 The caller of the function takes ownership of the data, and is responsible for freeing it.
 The value is a NUL terminated UTF-8 string.