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wstring.c
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wstring.c
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#include "wstring.h"
void w2cstrcpy(void* dst, void* src)
{
int ix = 0;
while (1)
{
*(char *)(dst + ix) = *(XCHAR *)(src + ix*2) & 0x00FF;
if (*(char *)(dst + ix) == 0)
break;
ix++;
}
}
void w2cstrcat(void* dst, void* src)
{
int ix = 0, iy = 0;
// find end of str in dst
while (1)
{
if (*(char *)(dst + ix) == 0)
break;
ix++;
}
while (1)
{
*(char *)(dst + ix) = *(XCHAR *)(src + iy*2) & 0x00FF;
if (*(char *)(dst + ix) == 0)
break;
ix++;
iy++;
}
}
void c2wstrcpy(void* dst, void* src)
{
int ix = 0;
while (1)
{
*(XCHAR *)(dst + ix*2) = *(char *)(src + ix) & 0x00FF;
if (*(XCHAR *)(dst + ix*2) == (XCHAR)0)
break;
ix++;
}
}
void c2wstrcat(void* dst, void* src)
{
int ix = 0, iy = 0;
// find end of str in dst
while (1)
{
if (*(XCHAR *)(dst + ix*2) == (XCHAR)0)
break;
ix++;
}
while (1)
{
*(XCHAR *)(dst + ix*2) = *(char *)(src + iy) & 0x00FF;
if (*(XCHAR *)(dst + ix*2) == (XCHAR)0)
break;
ix++;
iy++;
}
}
int wstrcmp(WCHAR* ws1, WCHAR* ws2)
{
int ix = 0;
while (ws1[ix] && ws2[ix] && (ws1[ix] == ws2[ix])) ix++;
if (!ws1[ix] && ws2[ix])
return -1; // ws1 < ws2
if (ws1[ix] && !ws2[ix])
return 1; // ws1 > ws2
return (int)ws1[ix] - (int)ws2[ix];
}