u_strCompareIter

// icuuc.dll
#include <windows.h>

INT u_strCompareIter(
    UCharIterator* iter1,
    UCharIterator* iter2,
    CHAR codePointOrder
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function u_strCompareIter(
    iter1 As IntPtr,   ' UCharIterator* in/out
    iter2 As IntPtr,   ' UCharIterator* in/out
    codePointOrder As SByte   ' CHAR
) As Integer
End Function

' iter1 : UCharIterator* in/out
' iter2 : UCharIterator* in/out
' codePointOrder : CHAR
Declare PtrSafe Function u_strCompareIter Lib "icuuc" ( _
    ByVal iter1 As LongPtr, _
    ByVal iter2 As LongPtr, _
    ByVal codePointOrder As Byte) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

u_strCompareIter = ctypes.cdll.icuuc.u_strCompareIter
u_strCompareIter.restype = ctypes.c_int
u_strCompareIter.argtypes = [
    ctypes.c_void_p,  # iter1 : UCharIterator* in/out
    ctypes.c_void_p,  # iter2 : UCharIterator* in/out
    ctypes.c_byte,  # codePointOrder : CHAR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_strCompareIter = Fiddle::Function.new(
  lib['u_strCompareIter'],
  [
    Fiddle::TYPE_VOIDP,  # iter1 : UCharIterator* in/out
    Fiddle::TYPE_VOIDP,  # iter2 : UCharIterator* in/out
    Fiddle::TYPE_CHAR,  # codePointOrder : CHAR
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_strCompareIter(
        iter1: *mut UCharIterator,  // UCharIterator* in/out
        iter2: *mut UCharIterator,  // UCharIterator* in/out
        codePointOrder: i8  // CHAR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int u_strCompareIter(IntPtr iter1, IntPtr iter2, sbyte codePointOrder);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_strCompareIter' -Namespace Win32 -PassThru
# $api::u_strCompareIter(iter1, iter2, codePointOrder)

#uselib "icuuc.dll"
#func global u_strCompareIter "u_strCompareIter" sptr, sptr, sptr
; u_strCompareIter varptr(iter1), varptr(iter2), codePointOrder   ; 戻り値は stat
; iter1 : UCharIterator* in/out -> "sptr"
; iter2 : UCharIterator* in/out -> "sptr"
; codePointOrder : CHAR -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procu_strCompareIter = icuuc.NewProc("u_strCompareIter")
)

// iter1 (UCharIterator* in/out), iter2 (UCharIterator* in/out), codePointOrder (CHAR)
r1, _, err := procu_strCompareIter.Call(
	uintptr(iter1),
	uintptr(iter2),
	uintptr(codePointOrder),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function u_strCompareIter(
  iter1: Pointer;   // UCharIterator* in/out
  iter2: Pointer;   // UCharIterator* in/out
  codePointOrder: Shortint   // CHAR
): Integer; cdecl;
  external 'icuuc.dll' name 'u_strCompareIter';

result := DllCall("icuuc\u_strCompareIter"
    , "Ptr", iter1   ; UCharIterator* in/out
    , "Ptr", iter2   ; UCharIterator* in/out
    , "Char", codePointOrder   ; CHAR
    , "Cdecl Int")   ; return: INT

●u_strCompareIter(iter1, iter2, codePointOrder) = DLL("icuuc.dll", "int u_strCompareIter(void*, void*, char)")
# 呼び出し: u_strCompareIter(iter1, iter2, codePointOrder)
# iter1 : UCharIterator* in/out -> "void*"
# iter2 : UCharIterator* in/out -> "void*"
# codePointOrder : CHAR -> "char"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。

const std = @import("std");

extern "icuuc" fn u_strCompareIter(
    iter1: [*c]UCharIterator, // UCharIterator* in/out
    iter2: [*c]UCharIterator, // UCharIterator* in/out
    codePointOrder: i8 // CHAR
) callconv(.c) i32;

proc u_strCompareIter(
    iter1: ptr UCharIterator,  # UCharIterator* in/out
    iter2: ptr UCharIterator,  # UCharIterator* in/out
    codePointOrder: int8  # CHAR
): int32 {.importc: "u_strCompareIter", cdecl, dynlib: "icuuc.dll".}

pragma(lib, "icuuc");
extern(C)
int u_strCompareIter(
    UCharIterator* iter1,   // UCharIterator* in/out
    UCharIterator* iter2,   // UCharIterator* in/out
    byte codePointOrder   // CHAR
);

ccall((:u_strCompareIter, "icuuc.dll"), Int32,
      (Ptr{UCharIterator}, Ptr{UCharIterator}, Int8),
      iter1, iter2, codePointOrder)
# iter1 : UCharIterator* in/out -> Ptr{UCharIterator}
# iter2 : UCharIterator* in/out -> Ptr{UCharIterator}
# codePointOrder : CHAR -> Int8

local ffi = require("ffi")
ffi.cdef[[
int32_t u_strCompareIter(
    void* iter1,
    void* iter2,
    int8_t codePointOrder);
]]
local icuuc = ffi.load("icuuc")
-- icuuc.u_strCompareIter(iter1, iter2, codePointOrder)
-- iter1 : UCharIterator* in/out
-- iter2 : UCharIterator* in/out
-- codePointOrder : CHAR
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('icuuc.dll');
const u_strCompareIter = lib.func('__cdecl', 'u_strCompareIter', 'int32_t', ['void *', 'void *', 'int8_t']);
// u_strCompareIter(iter1, iter2, codePointOrder)
// iter1 : UCharIterator* in/out -> 'void *'
// iter2 : UCharIterator* in/out -> 'void *'
// codePointOrder : CHAR -> 'int8_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("icuuc.dll", {
  u_strCompareIter: { parameters: ["pointer", "pointer", "i8"], result: "i32" },
});
// lib.symbols.u_strCompareIter(iter1, iter2, codePointOrder)
// iter1 : UCharIterator* in/out -> "pointer"
// iter2 : UCharIterator* in/out -> "pointer"
// codePointOrder : CHAR -> "i8"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t u_strCompareIter(
    void* iter1,
    void* iter2,
    int8_t codePointOrder);
C, "icuuc.dll");
// $ffi->u_strCompareIter(iter1, iter2, codePointOrder);
// iter1 : UCharIterator* in/out
// iter2 : UCharIterator* in/out
// codePointOrder : CHAR
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Icuuc extends Library {
    Icuuc INSTANCE = Native.load("icuuc", Icuuc.class);
    int u_strCompareIter(
        Pointer iter1,   // UCharIterator* in/out
        Pointer iter2,   // UCharIterator* in/out
        byte codePointOrder   // CHAR
    );
}

@[Link("icuuc")]
lib Libicuuc
  fun u_strCompareIter = u_strCompareIter(
    iter1 : UCharIterator*,   # UCharIterator* in/out
    iter2 : UCharIterator*,   # UCharIterator* in/out
    codePointOrder : Int8   # CHAR
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef u_strCompareIterNative = Int32 Function(Pointer<Void>, Pointer<Void>, Int8);
typedef u_strCompareIterDart = int Function(Pointer<Void>, Pointer<Void>, int);
final u_strCompareIter = DynamicLibrary.open('icuuc.dll')
    .lookupFunction<u_strCompareIterNative, u_strCompareIterDart>('u_strCompareIter');
// iter1 : UCharIterator* in/out -> Pointer<Void>
// iter2 : UCharIterator* in/out -> Pointer<Void>
// codePointOrder : CHAR -> Int8
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function u_strCompareIter(
  iter1: Pointer;   // UCharIterator* in/out
  iter2: Pointer;   // UCharIterator* in/out
  codePointOrder: Shortint   // CHAR
): Integer; cdecl;
  external 'icuuc.dll' name 'u_strCompareIter';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import ccall safe "u_strCompareIter"
  c_u_strCompareIter :: Ptr () -> Ptr () -> Int8 -> IO Int32
-- iter1 : UCharIterator* in/out -> Ptr ()
-- iter2 : UCharIterator* in/out -> Ptr ()
-- codePointOrder : CHAR -> Int8
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let u_strcompareiter =
  foreign "u_strCompareIter"
    ((ptr void) @-> (ptr void) @-> int8_t @-> returning int32_t)
(* iter1 : UCharIterator* in/out -> (ptr void) *)
(* iter2 : UCharIterator* in/out -> (ptr void) *)
(* codePointOrder : CHAR -> int8_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library icuuc (t "icuuc.dll"))
(cffi:use-foreign-library icuuc)

(cffi:defcfun ("u_strCompareIter" u-str-compare-iter :convention :cdecl) :int32
  (iter1 :pointer)   ; UCharIterator* in/out
  (iter2 :pointer)   ; UCharIterator* in/out
  (code-point-order :int8))   ; CHAR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $u_strCompareIter = Win32::API::More->new('icuuc',
    'int u_strCompareIter(LPVOID iter1, LPVOID iter2, char codePointOrder)');
# my $ret = $u_strCompareIter->Call($iter1, $iter2, $codePointOrder);
# iter1 : UCharIterator* in/out -> LPVOID
# iter2 : UCharIterator* in/out -> LPVOID
# codePointOrder : CHAR -> char
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。