dlls/ntdll/string.c

   1 /*
   2  * NTDLL string functions
   3  *
   4  * Copyright 2000 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8
   9 #include <ctype.h>
  10 #include <string.h>
  11
  12 #include "windef.h"
  13
  14 /*********************************************************************
  15  *                  _memicmp   (NTDLL)
  16  */
  17 INT __cdecl _memicmp( LPCSTR s1, LPCSTR s2, DWORD len )
  18 {
  19     int ret = 0;
  20     while (len--)
  21     {
  22         if ((ret = tolower(*s1) - tolower(*s2))) break;
  23         s1++;
  24         s2++;
  25     }
  26     return ret;
  27 }
  28
  29 /*********************************************************************
  30  *                  _strupr   (NTDLL)
  31  */
  32 LPSTR __cdecl _strupr( LPSTR str )
  33 {
  34     LPSTR ret = str;
  35     for ( ; *str; str++) *str = toupper(*str);
  36     return ret;
  37 }
  38
  39 /*********************************************************************
  40  *                  _strlwr   (NTDLL)
  41  *
  42  * convert a string in place to lowercase
  43  */
  44 LPSTR __cdecl _strlwr( LPSTR str )
  45 {
  46     LPSTR ret = str;
  47     for ( ; *str; str++) *str = tolower(*str);
  48     return ret;
  49 }
  50
  51
  52 /*********************************************************************
  53  *                  _ultoa   (NTDLL)
  54  */
  55 LPSTR  __cdecl _ultoa( unsigned long x, LPSTR buf, INT radix )
  56 {
  57     char buffer[32], *p;
  58
  59     p = buffer + sizeof(buffer);
  60     *--p = 0;
  61     do
  62     {
  63         int rem = x % radix;
  64         *--p = (rem <= 9) ? rem + '0' : rem + 'a' - 10;
  65         x /= radix;
  66     } while (x);
  67     strcpy( buf, p + 1 );
  68     return buf;
  69 }
  70
  71
  72 /*********************************************************************
  73  *                  _ltoa   (NTDLL)
  74  */
  75 LPSTR  __cdecl _ltoa( long x, LPSTR buf, INT radix )
  76 {
  77     LPSTR p = buf;
  78     if (x < 0)
  79     {
  80         *p++ = '-';
  81         x = -x;
  82     }
  83     _ultoa( x, p, radix );
  84     return buf;
  85 }
  86
  87
  88 /*********************************************************************
  89  *                  _itoa           (NTDLL)
  90  */
  91 LPSTR  __cdecl _itoa( int x, LPSTR buf, INT radix )
  92 {
  93     return _ltoa( x, buf, radix );
  94 }