u_strrstr

関数

文字列中で部分文字列を末尾から検索する。

DLLicuuc.dll呼出規約cdecl

シグネチャ

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

WORD* u_strrstr(
    const WORD* s,
    const WORD* substring
);

パラメーター

名前	型	方向
s	WORD*	in
substring	WORD*	in

戻り値の型: WORD*

各言語での呼び出し定義

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

WORD* u_strrstr(
    const WORD* s,
    const WORD* substring
);

[DllImport("icuuc.dll", ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
static extern IntPtr u_strrstr(
    ref ushort s,   // WORD*
    ref ushort substring   // WORD*
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function u_strrstr(
    ByRef s As UShort,   ' WORD*
    ByRef substring As UShort   ' WORD*
) As IntPtr
End Function

' s : WORD*
' substring : WORD*
Declare PtrSafe Function u_strrstr Lib "icuuc" ( _
    ByRef s As Integer, _
    ByRef substring As Integer) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

u_strrstr = ctypes.cdll.icuuc.u_strrstr
u_strrstr.restype = ctypes.c_void_p
u_strrstr.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # s : WORD*
    ctypes.POINTER(ctypes.c_ushort),  # substring : WORD*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_strrstr = Fiddle::Function.new(
  lib['u_strrstr'],
  [
    Fiddle::TYPE_VOIDP,  # s : WORD*
    Fiddle::TYPE_VOIDP,  # substring : WORD*
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_strrstr(
        s: *const u16,  // WORD*
        substring: *const u16  // WORD*
    ) -> *mut u16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr u_strrstr(ref ushort s, ref ushort substring);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_strrstr' -Namespace Win32 -PassThru
# $api::u_strrstr(s, substring)

#uselib "icuuc.dll"
#func global u_strrstr "u_strrstr" sptr, sptr
; u_strrstr varptr(s), varptr(substring)   ; 戻り値は stat
; s : WORD* -> "sptr"
; substring : WORD* -> "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。

出力引数:

#uselib "icuuc.dll"
#cfunc global u_strrstr "u_strrstr" var, var
; res = u_strrstr(s, substring)
; s : WORD* -> "var"
; substring : WORD* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "icuuc.dll"
#cfunc global u_strrstr "u_strrstr" sptr, sptr
; res = u_strrstr(varptr(s), varptr(substring))
; s : WORD* -> "sptr"
; substring : WORD* -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; WORD* u_strrstr(WORD* s, WORD* substring)
#uselib "icuuc.dll"
#cfunc global u_strrstr "u_strrstr" var, var
; res = u_strrstr(s, substring)
; s : WORD* -> "var"
; substring : WORD* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; WORD* u_strrstr(WORD* s, WORD* substring)
#uselib "icuuc.dll"
#cfunc global u_strrstr "u_strrstr" intptr, intptr
; res = u_strrstr(varptr(s), varptr(substring))
; s : WORD* -> "intptr"
; substring : WORD* -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procu_strrstr = icuuc.NewProc("u_strrstr")
)

// s (WORD*), substring (WORD*)
r1, _, err := procu_strrstr.Call(
	uintptr(s),
	uintptr(substring),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WORD*

function u_strrstr(
  s: Pointer;   // WORD*
  substring: Pointer   // WORD*
): Pointer; cdecl;
  external 'icuuc.dll' name 'u_strrstr';

result := DllCall("icuuc\u_strrstr"
    , "Ptr", s   ; WORD*
    , "Ptr", substring   ; WORD*
    , "Cdecl Ptr")   ; return: WORD*

●u_strrstr(s, substring) = DLL("icuuc.dll", "void* u_strrstr(void*, void*)")
# 呼び出し: u_strrstr(s, substring)
# s : WORD* -> "void*"
# substring : WORD* -> "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。