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/*
* Copyright (c) 2003 Rozhuk Ivan <rozhuk.im@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#if !defined(AFX_BUFFTOLOWERCASE__H__INCLUDED_)
#define AFX_BUFFTOLOWERCASE__H__INCLUDED_
#pragma once
__inline BOOL BuffToLowerCase(LPCVOID lpcOutBuff,LPCVOID lpcBuff,size_t dwLen)
{
BOOL bRet=TRUE;
#if defined(_WIN64) || !defined(_WIN32)
if (lpcOutBuff && lpcBuff && dwLen)
{
BYTE bt;
LPBYTE lpbtIn=(LPBYTE)lpcBuff,lpbtOut=(LPBYTE)lpcOutBuff;
for(size_t i=dwLen;i;i--)
{
bt=(*(lpbtIn++));
if (bt>='A' && bt<='Z') bt|=32;
(*(lpbtOut++))=bt;
}
}
#else
__asm
{
mov ecx,dwLen
test ecx,ecx
jz short end_func
push ebx // сохраняем регистр
push edi // сохраняем регистр
push esi // сохраняем регистр
mov esi,lpcBuff
mov edi,lpcOutBuff
mov bl,'A'
mov bh,'Z'
mov ah,32
cld
lowcaseloop:
lodsb
cmp al,bl
jl short savebyte
cmp al,bh
jg short savebyte
or al,ah
savebyte:
stosb
dec ecx
jnz short lowcaseloop
pop esi // восстанавливаем содержимое регистра
pop edi // восстанавливаем содержимое регистра
pop ebx // восстанавливаем содержимое регистра
end_func:
}
#endif
return(bRet);
}
#endif // !defined(AFX_BUFFTOLOWERCASE__H__INCLUDED_)
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