ucptrie_internalU8PrevIndex

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

INT ucptrie_internalU8PrevIndex(
    const UCPTrie* trie,
    INT c,
    const BYTE* start,
    const BYTE* src
);

<DllImport("icu.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucptrie_internalU8PrevIndex(
    trie As IntPtr,   ' UCPTrie*
    c As Integer,   ' INT
    start As IntPtr,   ' BYTE*
    src As IntPtr   ' BYTE*
) As Integer
End Function

' trie : UCPTrie*
' c : INT
' start : BYTE*
' src : BYTE*
Declare PtrSafe Function ucptrie_internalU8PrevIndex Lib "icu" ( _
    ByVal trie As LongPtr, _
    ByVal c As Long, _
    ByVal start As LongPtr, _
    ByVal src As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucptrie_internalU8PrevIndex = ctypes.cdll.icu.ucptrie_internalU8PrevIndex
ucptrie_internalU8PrevIndex.restype = ctypes.c_int
ucptrie_internalU8PrevIndex.argtypes = [
    ctypes.c_void_p,  # trie : UCPTrie*
    ctypes.c_int,  # c : INT
    ctypes.POINTER(ctypes.c_ubyte),  # start : BYTE*
    ctypes.POINTER(ctypes.c_ubyte),  # src : BYTE*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icu.dll')
ucptrie_internalU8PrevIndex = Fiddle::Function.new(
  lib['ucptrie_internalU8PrevIndex'],
  [
    Fiddle::TYPE_VOIDP,  # trie : UCPTrie*
    Fiddle::TYPE_INT,  # c : INT
    Fiddle::TYPE_VOIDP,  # start : BYTE*
    Fiddle::TYPE_VOIDP,  # src : BYTE*
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icu")]
extern "C" {
    fn ucptrie_internalU8PrevIndex(
        trie: *const UCPTrie,  // UCPTrie*
        c: i32,  // INT
        start: *const u8,  // BYTE*
        src: *const u8  // BYTE*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icu.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int ucptrie_internalU8PrevIndex(IntPtr trie, int c, IntPtr start, IntPtr src);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icu_ucptrie_internalU8PrevIndex' -Namespace Win32 -PassThru
# $api::ucptrie_internalU8PrevIndex(trie, c, start, src)

#uselib "icu.dll"
#func global ucptrie_internalU8PrevIndex "ucptrie_internalU8PrevIndex" sptr, sptr, sptr, sptr
; ucptrie_internalU8PrevIndex varptr(trie), c, varptr(start), varptr(src)   ; 戻り値は stat
; trie : UCPTrie* -> "sptr"
; c : INT -> "sptr"
; start : BYTE* -> "sptr"
; src : BYTE* -> "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 (
	icu = windows.NewLazySystemDLL("icu.dll")
	procucptrie_internalU8PrevIndex = icu.NewProc("ucptrie_internalU8PrevIndex")
)

// trie (UCPTrie*), c (INT), start (BYTE*), src (BYTE*)
r1, _, err := procucptrie_internalU8PrevIndex.Call(
	uintptr(trie),
	uintptr(c),
	uintptr(start),
	uintptr(src),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ucptrie_internalU8PrevIndex(
  trie: Pointer;   // UCPTrie*
  c: Integer;   // INT
  start: Pointer;   // BYTE*
  src: Pointer   // BYTE*
): Integer; cdecl;
  external 'icu.dll' name 'ucptrie_internalU8PrevIndex';

result := DllCall("icu\ucptrie_internalU8PrevIndex"
    , "Ptr", trie   ; UCPTrie*
    , "Int", c   ; INT
    , "Ptr", start   ; BYTE*
    , "Ptr", src   ; BYTE*
    , "Cdecl Int")   ; return: INT

●ucptrie_internalU8PrevIndex(trie, c, start, src) = DLL("icu.dll", "int ucptrie_internalU8PrevIndex(void*, int, void*, void*)")
# 呼び出し: ucptrie_internalU8PrevIndex(trie, c, start, src)
# trie : UCPTrie* -> "void*"
# c : INT -> "int"
# start : BYTE* -> "void*"
# src : BYTE* -> "void*"
# 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 "icu" fn ucptrie_internalU8PrevIndex(
    trie: [*c]UCPTrie, // UCPTrie*
    c: i32, // INT
    start: [*c]u8, // BYTE*
    src: [*c]u8 // BYTE*
) callconv(.c) i32;

proc ucptrie_internalU8PrevIndex(
    trie: ptr UCPTrie,  # UCPTrie*
    c: int32,  # INT
    start: ptr uint8,  # BYTE*
    src: ptr uint8  # BYTE*
): int32 {.importc: "ucptrie_internalU8PrevIndex", cdecl, dynlib: "icu.dll".}

pragma(lib, "icu");
extern(C)
int ucptrie_internalU8PrevIndex(
    UCPTrie* trie,   // UCPTrie*
    int c,   // INT
    ubyte* start,   // BYTE*
    ubyte* src   // BYTE*
);

ccall((:ucptrie_internalU8PrevIndex, "icu.dll"), Int32,
      (Ptr{UCPTrie}, Int32, Ptr{UInt8}, Ptr{UInt8}),
      trie, c, start, src)
# trie : UCPTrie* -> Ptr{UCPTrie}
# c : INT -> Int32
# start : BYTE* -> Ptr{UInt8}
# src : BYTE* -> Ptr{UInt8}

local ffi = require("ffi")
ffi.cdef[[
int32_t ucptrie_internalU8PrevIndex(
    void* trie,
    int32_t c,
    uint8_t* start,
    uint8_t* src);
]]
local icu = ffi.load("icu")
-- icu.ucptrie_internalU8PrevIndex(trie, c, start, src)
-- trie : UCPTrie*
-- c : INT
-- start : BYTE*
-- src : BYTE*
-- 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('icu.dll');
const ucptrie_internalU8PrevIndex = lib.func('__cdecl', 'ucptrie_internalU8PrevIndex', 'int32_t', ['void *', 'int32_t', 'uint8_t *', 'uint8_t *']);
// ucptrie_internalU8PrevIndex(trie, c, start, src)
// trie : UCPTrie* -> 'void *'
// c : INT -> 'int32_t'
// start : BYTE* -> 'uint8_t *'
// src : BYTE* -> 'uint8_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("icu.dll", {
  ucptrie_internalU8PrevIndex: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.ucptrie_internalU8PrevIndex(trie, c, start, src)
// trie : UCPTrie* -> "pointer"
// c : INT -> "i32"
// start : BYTE* -> "pointer"
// src : BYTE* -> "pointer"
// 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 ucptrie_internalU8PrevIndex(
    void* trie,
    int32_t c,
    uint8_t* start,
    uint8_t* src);
C, "icu.dll");
// $ffi->ucptrie_internalU8PrevIndex(trie, c, start, src);
// trie : UCPTrie*
// c : INT
// start : BYTE*
// src : BYTE*
// 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 Icu extends Library {
    Icu INSTANCE = Native.load("icu", Icu.class);
    int ucptrie_internalU8PrevIndex(
        Pointer trie,   // UCPTrie*
        int c,   // INT
        byte[] start,   // BYTE*
        byte[] src   // BYTE*
    );
}

@[Link("icu")]
lib Libicu
  fun ucptrie_internalU8PrevIndex = ucptrie_internalU8PrevIndex(
    trie : UCPTrie*,   # UCPTrie*
    c : Int32,   # INT
    start : UInt8*,   # BYTE*
    src : UInt8*   # BYTE*
  ) : 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 ucptrie_internalU8PrevIndexNative = Int32 Function(Pointer<Void>, Int32, Pointer<Uint8>, Pointer<Uint8>);
typedef ucptrie_internalU8PrevIndexDart = int Function(Pointer<Void>, int, Pointer<Uint8>, Pointer<Uint8>);
final ucptrie_internalU8PrevIndex = DynamicLibrary.open('icu.dll')
    .lookupFunction<ucptrie_internalU8PrevIndexNative, ucptrie_internalU8PrevIndexDart>('ucptrie_internalU8PrevIndex');
// trie : UCPTrie* -> Pointer<Void>
// c : INT -> Int32
// start : BYTE* -> Pointer<Uint8>
// src : BYTE* -> Pointer<Uint8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ucptrie_internalU8PrevIndex(
  trie: Pointer;   // UCPTrie*
  c: Integer;   // INT
  start: Pointer;   // BYTE*
  src: Pointer   // BYTE*
): Integer; cdecl;
  external 'icu.dll' name 'ucptrie_internalU8PrevIndex';

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

foreign import ccall safe "ucptrie_internalU8PrevIndex"
  c_ucptrie_internalU8PrevIndex :: Ptr () -> Int32 -> Ptr Word8 -> Ptr Word8 -> IO Int32
-- trie : UCPTrie* -> Ptr ()
-- c : INT -> Int32
-- start : BYTE* -> Ptr Word8
-- src : BYTE* -> Ptr Word8
-- 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 ucptrie_internalu8previndex =
  foreign "ucptrie_internalU8PrevIndex"
    ((ptr void) @-> int32_t @-> (ptr uint8_t) @-> (ptr uint8_t) @-> returning int32_t)
(* trie : UCPTrie* -> (ptr void) *)
(* c : INT -> int32_t *)
(* start : BYTE* -> (ptr uint8_t) *)
(* src : BYTE* -> (ptr uint8_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 icu (t "icu.dll"))
(cffi:use-foreign-library icu)

(cffi:defcfun ("ucptrie_internalU8PrevIndex" ucptrie-internal-u8-prev-index :convention :cdecl) :int32
  (trie :pointer)   ; UCPTrie*
  (c :int32)   ; INT
  (start :pointer)   ; BYTE*
  (src :pointer))   ; BYTE*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ucptrie_internalU8PrevIndex = Win32::API::More->new('icu',
    'int ucptrie_internalU8PrevIndex(LPVOID trie, int c, LPVOID start, LPVOID src)');
# my $ret = $ucptrie_internalU8PrevIndex->Call($trie, $c, $start, $src);
# trie : UCPTrie* -> LPVOID
# c : INT -> int
# start : BYTE* -> LPVOID
# src : BYTE* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。