u_islower

関数

文字が小文字か判定する。

DLLicuuc.dll呼出規約cdecl

シグネチャ

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

CHAR u_islower(
    INT c
);

パラメーター

名前	型	方向
c	INT	in

戻り値の型: CHAR

各言語での呼び出し定義

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

CHAR u_islower(
    INT c
);

[DllImport("icuuc.dll", ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
static extern sbyte u_islower(
    int c   // INT
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function u_islower(
    c As Integer   ' INT
) As SByte
End Function

' c : INT
Declare PtrSafe Function u_islower Lib "icuuc" ( _
    ByVal c As Long) As Byte
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

u_islower = ctypes.cdll.icuuc.u_islower
u_islower.restype = ctypes.c_byte
u_islower.argtypes = [
    ctypes.c_int,  # c : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
u_islower = Fiddle::Function.new(
  lib['u_islower'],
  [
    Fiddle::TYPE_INT,  # c : INT
  ],
  Fiddle::TYPE_CHAR, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn u_islower(
        c: i32  // INT
    ) -> i8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern sbyte u_islower(int c);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_u_islower' -Namespace Win32 -PassThru
# $api::u_islower(c)

#uselib "icuuc.dll"
#func global u_islower "u_islower" sptr
; u_islower c   ; 戻り値は stat
; c : INT -> "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。

#uselib "icuuc.dll"
#cfunc global u_islower "u_islower" int
; res = u_islower(c)
; c : INT -> "int"

; CHAR u_islower(INT c)
#uselib "icuuc.dll"
#cfunc global u_islower "u_islower" int
; res = u_islower(c)
; c : INT -> "int"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procu_islower = icuuc.NewProc("u_islower")
)

// c (INT)
r1, _, err := procu_islower.Call(
	uintptr(c),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CHAR

function u_islower(
  c: Integer   // INT
): Shortint; cdecl;
  external 'icuuc.dll' name 'u_islower';

result := DllCall("icuuc\u_islower"
    , "Int", c   ; INT
    , "Cdecl Char")   ; return: CHAR

●u_islower(c) = DLL("icuuc.dll", "char u_islower(int)")
# 呼び出し: u_islower(c)
# c : INT -> "int"
# 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。