@subheading stringprep_4i
@anchor{stringprep_4i}
@deftypefun {int} {stringprep_4i} (uint32_t * @var{ucs4}, size_t * @var{len}, size_t @var{maxucs4len}, Stringprep_profile_flags @var{flags}, const Stringprep_profile * @var{profile})
@var{ucs4}: input/output array with string to prepare.

@var{len}: on input, length of input array with Unicode code points,
on exit, length of output array with Unicode code points.

@var{maxucs4len}: maximum length of input/output array.

@var{flags}: a @code{Stringprep_profile_flags}  value, or 0.

@var{profile}: pointer to @code{Stringprep_profile}  to use.

Prepare the input UCS-4 string according to the stringprep profile,
and write back the result to the input string.

The input is not required to be zero terminated ( @code{ucs4} [ @code{len} ] = 0).
The output will not be zero terminated unless  @code{ucs4} [ @code{len} ] = 0.
Instead, see @code{stringprep_4zi()}  if your input is zero terminated or
if you want the output to be.

Since the stringprep operation can expand the string,  @code{maxucs4len} indicate how large the buffer holding the string is.  This function
will not read or write to code points outside that size.

The  @code{flags} are one of @code{Stringprep_profile_flags}  values, or 0.

The  @code{profile} contain the @code{Stringprep_profile}  instructions to
perform.  Your application can define new profiles, possibly
reusing the generic stringprep tables that always will be part of
the library, or use one of the currently supported profiles.

Return value: Returns @code{STRINGPREP_OK}  iff successful, or an
@code{Stringprep_rc}  error code.
Prepare the input UCS-4 string according to the stringprep profile,
and write back the result to the input string.

The input is not required to be zero terminated ( @code{ucs4} [ @code{len} ] = 0).
The output will not be zero terminated unless  @code{ucs4} [ @code{len} ] = 0.
Instead, see @code{stringprep_4zi()}  if your input is zero terminated or
if you want the output to be.

Since the stringprep operation can expand the string,  @code{maxucs4len} indicate how large the buffer holding the string is.  This function
will not read or write to code points outside that size.

The  @code{flags} are one of @code{Stringprep_profile_flags}  values, or 0.

The  @code{profile} contain the @code{Stringprep_profile}  instructions to
perform.  Your application can define new profiles, possibly
reusing the generic stringprep tables that always will be part of
the library, or use one of the currently supported profiles.

Return value: Returns @code{STRINGPREP_OK}  iff successful, or an
@code{Stringprep_rc}  error code.
@end deftypefun

