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903 lines
23 KiB
C
903 lines
23 KiB
C
/*
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* NTDLL wide-char functions
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*
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* Copyright 2000 Alexandre Julliard
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* Copyright 2000 Jon Griffiths
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* Copyright 2003 Thomas Mertes
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "winternl.h"
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static const unsigned short wctypes[256] =
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{
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/* 00 */
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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0x0020, 0x0068, 0x0028, 0x0028, 0x0028, 0x0028, 0x0020, 0x0020,
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/* 10 */
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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/* 20 */
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0x0048, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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/* 30 */
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0x0084, 0x0084, 0x0084, 0x0084, 0x0084, 0x0084, 0x0084, 0x0084,
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0x0084, 0x0084, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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/* 40 */
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0x0010, 0x0181, 0x0181, 0x0181, 0x0181, 0x0181, 0x0181, 0x0101,
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0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
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/* 50 */
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0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
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0x0101, 0x0101, 0x0101, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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/* 60 */
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0x0010, 0x0182, 0x0182, 0x0182, 0x0182, 0x0182, 0x0182, 0x0102,
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0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102,
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/* 70 */
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0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102,
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0x0102, 0x0102, 0x0102, 0x0010, 0x0010, 0x0010, 0x0010, 0x0020,
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/* 80 */
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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/* 90 */
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020, 0x0020,
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/* a0 */
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0x0048, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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/* b0 */
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0x0010, 0x0010, 0x0014, 0x0014, 0x0010, 0x0010, 0x0010, 0x0010,
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0x0010, 0x0014, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010, 0x0010,
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/* c0 */
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0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
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0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
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/* d0 */
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0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0010,
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0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0102,
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/* e0 */
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0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102,
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0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102,
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/* f0 */
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0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0010,
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0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102, 0x0102
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};
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/*********************************************************************
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* _wcsicmp (NTDLL.@)
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*/
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INT __cdecl NTDLL__wcsicmp( LPCWSTR str1, LPCWSTR str2 )
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{
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for (;;)
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{
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WCHAR ch1 = (*str1 >= 'A' && *str1 <= 'Z') ? *str1 + 32 : *str1;
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WCHAR ch2 = (*str2 >= 'A' && *str2 <= 'Z') ? *str2 + 32 : *str2;
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if (ch1 != ch2 || !*str1) return ch1 - ch2;
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str1++;
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str2++;
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}
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}
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/*********************************************************************
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* _wcslwr (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL__wcslwr( LPWSTR str )
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{
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WCHAR *ret = str;
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while (*str)
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{
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WCHAR ch = *str;
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if (ch >= 'A' && ch <= 'Z') ch += 32;
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*str++ = ch;
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}
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return ret;
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}
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/*********************************************************************
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* _wcsnicmp (NTDLL.@)
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*/
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INT __cdecl NTDLL__wcsnicmp( LPCWSTR str1, LPCWSTR str2, INT n )
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{
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int ret = 0;
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for ( ; n > 0; n--, str1++, str2++)
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{
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WCHAR ch1 = (*str1 >= 'A' && *str1 <= 'Z') ? *str1 + 32 : *str1;
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WCHAR ch2 = (*str2 >= 'A' && *str2 <= 'Z') ? *str2 + 32 : *str2;
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if ((ret = ch1 - ch2) || !*str1) break;
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}
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return ret;
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}
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/*********************************************************************
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* _wcsupr (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL__wcsupr( LPWSTR str )
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{
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WCHAR *ret = str;
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while (*str)
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{
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WCHAR ch = *str;
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if (ch >= 'a' && ch <= 'z') ch -= 32;
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*str++ = ch;
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}
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return ret;
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}
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/***********************************************************************
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* wcscpy (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcscpy( LPWSTR dst, LPCWSTR src )
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{
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WCHAR *p = dst;
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while ((*p++ = *src++));
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return dst;
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}
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/***********************************************************************
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* wcslen (NTDLL.@)
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*/
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INT __cdecl NTDLL_wcslen( LPCWSTR str )
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{
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const WCHAR *s = str;
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while (*s) s++;
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return s - str;
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}
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/***********************************************************************
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* wcscat (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcscat( LPWSTR dst, LPCWSTR src )
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{
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NTDLL_wcscpy( dst + NTDLL_wcslen(dst), src );
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return dst;
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}
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/*********************************************************************
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* wcschr (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcschr( LPCWSTR str, WCHAR ch )
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{
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do { if (*str == ch) return (WCHAR *)(ULONG_PTR)str; } while (*str++);
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return NULL;
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}
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/*********************************************************************
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* wcscmp (NTDLL.@)
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*/
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INT __cdecl NTDLL_wcscmp( LPCWSTR str1, LPCWSTR str2 )
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{
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while (*str1 && (*str1 == *str2)) { str1++; str2++; }
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return *str1 - *str2;
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}
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/*********************************************************************
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* wcscspn (NTDLL.@)
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*/
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INT __cdecl NTDLL_wcscspn( LPCWSTR str, LPCWSTR reject )
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{
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const WCHAR *ptr;
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for (ptr = str; *ptr; ptr++) if (NTDLL_wcschr( reject, *ptr )) break;
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return ptr - str;
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}
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/*********************************************************************
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* wcsncat (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcsncat( LPWSTR s1, LPCWSTR s2, INT n )
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{
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LPWSTR ret = s1;
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while (*s1) s1++;
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while (n-- > 0) if (!(*s1++ = *s2++)) return ret;
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*s1 = 0;
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return ret;
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}
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/*********************************************************************
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* wcsncmp (NTDLL.@)
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*/
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INT __cdecl NTDLL_wcsncmp( LPCWSTR str1, LPCWSTR str2, INT n )
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{
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if (n <= 0) return 0;
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while ((--n > 0) && *str1 && (*str1 == *str2)) { str1++; str2++; }
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return *str1 - *str2;
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}
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/*********************************************************************
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* wcsncpy (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcsncpy( LPWSTR s1, LPCWSTR s2, INT n )
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{
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WCHAR *ret = s1;
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while (n-- > 0) if (!(*s1++ = *s2++)) break;
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while (n-- > 0) *s1++ = 0;
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return ret;
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}
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/*********************************************************************
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* wcspbrk (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcspbrk( LPCWSTR str, LPCWSTR accept )
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{
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for ( ; *str; str++) if (NTDLL_wcschr( accept, *str )) return (WCHAR *)(ULONG_PTR)str;
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return NULL;
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}
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/*********************************************************************
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* wcsrchr (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcsrchr( LPWSTR str, WCHAR ch )
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{
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WCHAR *ret = NULL;
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do { if (*str == ch) ret = (WCHAR *)(ULONG_PTR)str; } while (*str++);
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return ret;
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}
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/*********************************************************************
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* wcsspn (NTDLL.@)
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*/
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INT __cdecl NTDLL_wcsspn( LPCWSTR str, LPCWSTR accept )
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{
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const WCHAR *ptr;
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for (ptr = str; *ptr; ptr++) if (!NTDLL_wcschr( accept, *ptr )) break;
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return ptr - str;
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}
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/*********************************************************************
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* wcsstr (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcsstr( LPCWSTR str, LPCWSTR sub )
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{
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while (*str)
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{
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const WCHAR *p1 = str, *p2 = sub;
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while (*p1 && *p2 && *p1 == *p2) { p1++; p2++; }
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if (!*p2) return (WCHAR *)str;
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str++;
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}
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return NULL;
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}
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/*********************************************************************
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* wcstok (NTDLL.@)
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*/
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LPWSTR __cdecl NTDLL_wcstok( LPWSTR str, LPCWSTR delim )
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{
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static LPWSTR next = NULL;
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LPWSTR ret;
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if (!str)
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if (!(str = next)) return NULL;
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while (*str && NTDLL_wcschr( delim, *str )) str++;
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if (!*str) return NULL;
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ret = str++;
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while (*str && !NTDLL_wcschr( delim, *str )) str++;
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if (*str) *str++ = 0;
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next = str;
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return ret;
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}
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/*********************************************************************
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* wcstombs (NTDLL.@)
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*/
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INT __cdecl NTDLL_wcstombs( LPSTR dst, LPCWSTR src, INT n )
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{
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DWORD len;
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if (!dst)
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{
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RtlUnicodeToMultiByteSize( &len, src, NTDLL_wcslen(src) * sizeof(WCHAR) );
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return len;
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}
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else
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{
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if (n <= 0) return 0;
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RtlUnicodeToMultiByteN( dst, n, &len, src, NTDLL_wcslen(src) * sizeof(WCHAR) );
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if (len < n) dst[len] = 0;
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}
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return len;
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}
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/*********************************************************************
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* mbstowcs (NTDLL.@)
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*/
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INT __cdecl NTDLL_mbstowcs( LPWSTR dst, LPCSTR src, INT n )
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{
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DWORD len;
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if (!dst)
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{
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RtlMultiByteToUnicodeSize( &len, src, strlen(src) );
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}
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else
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{
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if (n <= 0) return 0;
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RtlMultiByteToUnicodeN( dst, n*sizeof(WCHAR), &len, src, strlen(src) );
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if (len / sizeof(WCHAR) < n) dst[len / sizeof(WCHAR)] = 0;
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}
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return len / sizeof(WCHAR);
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}
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/*********************************************************************
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* iswctype (NTDLL.@)
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*/
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INT __cdecl NTDLL_iswctype( WCHAR wc, unsigned short type )
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{
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if (wc >= 256) return 0;
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return wctypes[wc] & type;
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}
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/*********************************************************************
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* iswalpha (NTDLL.@)
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*/
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INT __cdecl NTDLL_iswalpha( WCHAR wc )
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{
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if (wc >= 256) return 0;
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return wctypes[wc] & (C1_ALPHA | C1_UPPER | C1_LOWER);
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}
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/*********************************************************************
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* iswdigit (NTDLL.@)
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*
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* Checks if a unicode char wc is a digit
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*
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* RETURNS
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* TRUE: The unicode char wc is a digit.
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* FALSE: Otherwise
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*/
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INT __cdecl NTDLL_iswdigit( WCHAR wc )
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{
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if (wc >= 256) return 0;
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return wctypes[wc] & C1_DIGIT;
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}
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/*********************************************************************
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* iswlower (NTDLL.@)
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*
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* Checks if a unicode char wc is a lower case letter
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*
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* RETURNS
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* TRUE: The unicode char wc is a lower case letter.
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* FALSE: Otherwise
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*/
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INT __cdecl NTDLL_iswlower( WCHAR wc )
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{
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if (wc >= 256) return 0;
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return wctypes[wc] & C1_LOWER;
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}
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/*********************************************************************
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* iswspace (NTDLL.@)
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*
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* Checks if a unicode char wc is a white space character
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*
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* RETURNS
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* TRUE: The unicode char wc is a white space character.
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* FALSE: Otherwise
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*/
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INT __cdecl NTDLL_iswspace( WCHAR wc )
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{
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if (wc >= 256) return 0;
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return wctypes[wc] & C1_SPACE;
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}
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/*********************************************************************
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* iswxdigit (NTDLL.@)
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*
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* Checks if a unicode char wc is an extended digit
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*
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* RETURNS
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* TRUE: The unicode char wc is an extended digit.
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* FALSE: Otherwise
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*/
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INT __cdecl NTDLL_iswxdigit( WCHAR wc )
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{
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if (wc >= 256) return 0;
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return wctypes[wc] & C1_XDIGIT;
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}
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static int wctoint( WCHAR c )
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{
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/* NOTE: MAP_FOLDDIGITS supports too many things. */
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/* Unicode points that contain digits 0-9; keep this sorted! */
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static const WCHAR zeros[] =
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{
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0x0660, 0x06f0, 0x0966, 0x09e6, 0x0a66, 0x0ae6, 0x0b66, 0x0c66, 0x0ce6,
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0x0d66, 0x0e50, 0x0ed0, 0x0f20, 0x1040, 0x17e0, 0x1810, 0xff10
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};
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int i;
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if ('0' <= c && c <= '9') return c - '0';
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if ('A' <= c && c <= 'Z') return c - 'A' + 10;
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if ('a' <= c && c <= 'z') return c - 'a' + 10;
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for (i = 0; i < ARRAY_SIZE(zeros) && c >= zeros[i]; i++)
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if (zeros[i] <= c && c <= zeros[i] + 9) return c - zeros[i];
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return -1;
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}
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/*********************************************************************
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* wcstol (NTDLL.@)
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*/
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LONG __cdecl NTDLL_wcstol(LPCWSTR s, LPWSTR *end, INT base)
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{
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BOOL negative = FALSE, empty = TRUE;
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LONG ret = 0;
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if (base < 0 || base == 1 || base > 36) return 0;
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if (end) *end = (WCHAR *)s;
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while (NTDLL_iswspace(*s)) s++;
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if (*s == '-')
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{
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negative = TRUE;
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s++;
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}
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else if (*s == '+') s++;
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if ((base == 0 || base == 16) && !wctoint( *s ) && (s[1] == 'x' || s[1] == 'X'))
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{
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base = 16;
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s += 2;
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}
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if (base == 0) base = wctoint( *s ) ? 10 : 8;
|
|
|
|
while (*s)
|
|
{
|
|
int v = wctoint( *s );
|
|
if (v < 0 || v >= base) break;
|
|
if (negative) v = -v;
|
|
s++;
|
|
empty = FALSE;
|
|
|
|
if (!negative && (ret > MAXLONG / base || ret * base > MAXLONG - v))
|
|
ret = MAXLONG;
|
|
else if (negative && (ret < (LONG)MINLONG / base || ret * base < (LONG)(MINLONG - v)))
|
|
ret = MINLONG;
|
|
else
|
|
ret = ret * base + v;
|
|
}
|
|
|
|
if (end && !empty) *end = (WCHAR *)s;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* wcstoul (NTDLL.@)
|
|
*/
|
|
ULONG __cdecl NTDLL_wcstoul(LPCWSTR s, LPWSTR *end, INT base)
|
|
{
|
|
BOOL negative = FALSE, empty = TRUE;
|
|
ULONG ret = 0;
|
|
|
|
if (base < 0 || base == 1 || base > 36) return 0;
|
|
if (end) *end = (WCHAR *)s;
|
|
while (NTDLL_iswspace(*s)) s++;
|
|
|
|
if (*s == '-')
|
|
{
|
|
negative = TRUE;
|
|
s++;
|
|
}
|
|
else if (*s == '+') s++;
|
|
|
|
if ((base == 0 || base == 16) && !wctoint( *s ) && (s[1] == 'x' || s[1] == 'X'))
|
|
{
|
|
base = 16;
|
|
s += 2;
|
|
}
|
|
if (base == 0) base = wctoint( *s ) ? 10 : 8;
|
|
|
|
while (*s)
|
|
{
|
|
int v = wctoint( *s );
|
|
if (v < 0 || v >= base) break;
|
|
s++;
|
|
empty = FALSE;
|
|
|
|
if (ret > MAXDWORD / base || ret * base > MAXDWORD - v)
|
|
ret = MAXDWORD;
|
|
else
|
|
ret = ret * base + v;
|
|
}
|
|
|
|
if (end && !empty) *end = (WCHAR *)s;
|
|
return negative ? -ret : ret;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _ultow (NTDLL.@)
|
|
*
|
|
* Converts an unsigned long integer to a unicode string.
|
|
*
|
|
* RETURNS
|
|
* Always returns str.
|
|
*
|
|
* NOTES
|
|
* Converts value to a '\0' terminated wstring which is copied to str.
|
|
* The maximum length of the copied str is 33 bytes.
|
|
* Does not check if radix is in the range of 2 to 36.
|
|
* If str is NULL it just returns NULL.
|
|
*/
|
|
LPWSTR __cdecl _ultow(
|
|
ULONG value, /* [I] Value to be converted */
|
|
LPWSTR str, /* [O] Destination for the converted value */
|
|
INT radix) /* [I] Number base for conversion */
|
|
{
|
|
WCHAR buffer[33];
|
|
PWCHAR pos;
|
|
WCHAR digit;
|
|
|
|
pos = &buffer[32];
|
|
*pos = '\0';
|
|
|
|
do {
|
|
digit = value % radix;
|
|
value = value / radix;
|
|
if (digit < 10) {
|
|
*--pos = '0' + digit;
|
|
} else {
|
|
*--pos = 'a' + digit - 10;
|
|
} /* if */
|
|
} while (value != 0L);
|
|
|
|
if (str != NULL) {
|
|
memcpy(str, pos, (&buffer[32] - pos + 1) * sizeof(WCHAR));
|
|
} /* if */
|
|
return str;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _ltow (NTDLL.@)
|
|
*
|
|
* Converts a long integer to a unicode string.
|
|
*
|
|
* RETURNS
|
|
* Always returns str.
|
|
*
|
|
* NOTES
|
|
* Converts value to a '\0' terminated wstring which is copied to str.
|
|
* The maximum length of the copied str is 33 bytes. If radix
|
|
* is 10 and value is negative, the value is converted with sign.
|
|
* Does not check if radix is in the range of 2 to 36.
|
|
* If str is NULL it just returns NULL.
|
|
*/
|
|
LPWSTR __cdecl _ltow(
|
|
LONG value, /* [I] Value to be converted */
|
|
LPWSTR str, /* [O] Destination for the converted value */
|
|
INT radix) /* [I] Number base for conversion */
|
|
{
|
|
ULONG val;
|
|
int negative;
|
|
WCHAR buffer[33];
|
|
PWCHAR pos;
|
|
WCHAR digit;
|
|
|
|
if (value < 0 && radix == 10) {
|
|
negative = 1;
|
|
val = -value;
|
|
} else {
|
|
negative = 0;
|
|
val = value;
|
|
} /* if */
|
|
|
|
pos = &buffer[32];
|
|
*pos = '\0';
|
|
|
|
do {
|
|
digit = val % radix;
|
|
val = val / radix;
|
|
if (digit < 10) {
|
|
*--pos = '0' + digit;
|
|
} else {
|
|
*--pos = 'a' + digit - 10;
|
|
} /* if */
|
|
} while (val != 0L);
|
|
|
|
if (negative) {
|
|
*--pos = '-';
|
|
} /* if */
|
|
|
|
if (str != NULL) {
|
|
memcpy(str, pos, (&buffer[32] - pos + 1) * sizeof(WCHAR));
|
|
} /* if */
|
|
return str;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _itow (NTDLL.@)
|
|
*
|
|
* Converts an integer to a unicode string.
|
|
*
|
|
* RETURNS
|
|
* Always returns str.
|
|
*
|
|
* NOTES
|
|
* Converts value to a '\0' terminated wstring which is copied to str.
|
|
* The maximum length of the copied str is 33 bytes. If radix
|
|
* is 10 and value is negative, the value is converted with sign.
|
|
* Does not check if radix is in the range of 2 to 36.
|
|
* If str is NULL it just returns NULL.
|
|
*
|
|
* DIFFERENCES
|
|
* - The native function crashes when the string is longer than 19 chars.
|
|
* This function does not have this bug.
|
|
*/
|
|
LPWSTR __cdecl _itow(
|
|
int value, /* [I] Value to be converted */
|
|
LPWSTR str, /* [O] Destination for the converted value */
|
|
INT radix) /* [I] Number base for conversion */
|
|
{
|
|
return _ltow(value, str, radix);
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _ui64tow (NTDLL.@)
|
|
*
|
|
* Converts a large unsigned integer to a unicode string.
|
|
*
|
|
* RETURNS
|
|
* Always returns str.
|
|
*
|
|
* NOTES
|
|
* Converts value to a '\0' terminated wstring which is copied to str.
|
|
* The maximum length of the copied str is 33 bytes.
|
|
* Does not check if radix is in the range of 2 to 36.
|
|
* If str is NULL it just returns NULL.
|
|
*
|
|
* DIFFERENCES
|
|
* - This function does not exist in the native DLL (but in msvcrt).
|
|
* But since the maintenance of all these functions is better done
|
|
* in one place we implement it here.
|
|
*/
|
|
LPWSTR __cdecl _ui64tow(
|
|
ULONGLONG value, /* [I] Value to be converted */
|
|
LPWSTR str, /* [O] Destination for the converted value */
|
|
INT radix) /* [I] Number base for conversion */
|
|
{
|
|
WCHAR buffer[65];
|
|
PWCHAR pos;
|
|
WCHAR digit;
|
|
|
|
pos = &buffer[64];
|
|
*pos = '\0';
|
|
|
|
do {
|
|
digit = value % radix;
|
|
value = value / radix;
|
|
if (digit < 10) {
|
|
*--pos = '0' + digit;
|
|
} else {
|
|
*--pos = 'a' + digit - 10;
|
|
} /* if */
|
|
} while (value != 0L);
|
|
|
|
if (str != NULL) {
|
|
memcpy(str, pos, (&buffer[64] - pos + 1) * sizeof(WCHAR));
|
|
} /* if */
|
|
return str;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _i64tow (NTDLL.@)
|
|
*
|
|
* Converts a large integer to a unicode string.
|
|
*
|
|
* RETURNS
|
|
* Always returns str.
|
|
*
|
|
* NOTES
|
|
* Converts value to a '\0' terminated wstring which is copied to str.
|
|
* The maximum length of the copied str is 33 bytes. If radix
|
|
* is 10 and value is negative, the value is converted with sign.
|
|
* Does not check if radix is in the range of 2 to 36.
|
|
* If str is NULL it just returns NULL.
|
|
*
|
|
* DIFFERENCES
|
|
* - The native DLL converts negative values (for base 10) wrong:
|
|
* -1 is converted to -18446744073709551615
|
|
* -2 is converted to -18446744073709551614
|
|
* -9223372036854775807 is converted to -9223372036854775809
|
|
* -9223372036854775808 is converted to -9223372036854775808
|
|
* The native msvcrt _i64tow function and our ntdll function do
|
|
* not have this bug.
|
|
*/
|
|
LPWSTR __cdecl _i64tow(
|
|
LONGLONG value, /* [I] Value to be converted */
|
|
LPWSTR str, /* [O] Destination for the converted value */
|
|
INT radix) /* [I] Number base for conversion */
|
|
{
|
|
ULONGLONG val;
|
|
int negative;
|
|
WCHAR buffer[65];
|
|
PWCHAR pos;
|
|
WCHAR digit;
|
|
|
|
if (value < 0 && radix == 10) {
|
|
negative = 1;
|
|
val = -value;
|
|
} else {
|
|
negative = 0;
|
|
val = value;
|
|
} /* if */
|
|
|
|
pos = &buffer[64];
|
|
*pos = '\0';
|
|
|
|
do {
|
|
digit = val % radix;
|
|
val = val / radix;
|
|
if (digit < 10) {
|
|
*--pos = '0' + digit;
|
|
} else {
|
|
*--pos = 'a' + digit - 10;
|
|
} /* if */
|
|
} while (val != 0L);
|
|
|
|
if (negative) {
|
|
*--pos = '-';
|
|
} /* if */
|
|
|
|
if (str != NULL) {
|
|
memcpy(str, pos, (&buffer[64] - pos + 1) * sizeof(WCHAR));
|
|
} /* if */
|
|
return str;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _wtol (NTDLL.@)
|
|
*
|
|
* Converts a unicode string to a long integer.
|
|
*
|
|
* PARAMS
|
|
* str [I] Wstring to be converted
|
|
*
|
|
* RETURNS
|
|
* On success it returns the integer value otherwise it returns 0.
|
|
*
|
|
* NOTES
|
|
* Accepts: {whitespace} [+|-] {digits}
|
|
* No check is made for value overflow, only the lower 32 bits are assigned.
|
|
* If str is NULL it crashes, as the native function does.
|
|
*/
|
|
LONG __cdecl _wtol( LPCWSTR str )
|
|
{
|
|
ULONG RunningTotal = 0;
|
|
BOOL bMinus = FALSE;
|
|
|
|
while (NTDLL_iswspace(*str)) str++;
|
|
|
|
if (*str == '+') {
|
|
str++;
|
|
} else if (*str == '-') {
|
|
bMinus = TRUE;
|
|
str++;
|
|
} /* if */
|
|
|
|
while (*str >= '0' && *str <= '9') {
|
|
RunningTotal = RunningTotal * 10 + *str - '0';
|
|
str++;
|
|
} /* while */
|
|
|
|
return bMinus ? -RunningTotal : RunningTotal;
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _wtoi (NTDLL.@)
|
|
*
|
|
* Converts a unicode string to an integer.
|
|
*
|
|
* PARAMS
|
|
* str [I] Wstring to be converted
|
|
*
|
|
* RETURNS
|
|
* On success it returns the integer value otherwise it returns 0.
|
|
*
|
|
* NOTES
|
|
* Accepts: {whitespace} [+|-] {digits}
|
|
* No check is made for value overflow, only the lower 32 bits are assigned.
|
|
* If str is NULL it crashes, as the native function does.
|
|
*/
|
|
int __cdecl _wtoi( LPCWSTR str )
|
|
{
|
|
return _wtol(str);
|
|
}
|
|
|
|
|
|
/*********************************************************************
|
|
* _wtoi64 (NTDLL.@)
|
|
*
|
|
* Converts a unicode string to a large integer.
|
|
*
|
|
* PARAMS
|
|
* str [I] Wstring to be converted
|
|
*
|
|
* RETURNS
|
|
* On success it returns the integer value otherwise it returns 0.
|
|
*
|
|
* NOTES
|
|
* Accepts: {whitespace} [+|-] {digits}
|
|
* No check is made for value overflow, only the lower 64 bits are assigned.
|
|
* If str is NULL it crashes, as the native function does.
|
|
*/
|
|
LONGLONG __cdecl _wtoi64( LPCWSTR str )
|
|
{
|
|
ULONGLONG RunningTotal = 0;
|
|
BOOL bMinus = FALSE;
|
|
|
|
while (NTDLL_iswspace(*str)) str++;
|
|
|
|
if (*str == '+') {
|
|
str++;
|
|
} else if (*str == '-') {
|
|
bMinus = TRUE;
|
|
str++;
|
|
} /* if */
|
|
|
|
while (*str >= '0' && *str <= '9') {
|
|
RunningTotal = RunningTotal * 10 + *str - '0';
|
|
str++;
|
|
} /* while */
|
|
|
|
return bMinus ? -RunningTotal : RunningTotal;
|
|
}
|