Solved

compare BSTR

Posted on 2000-02-26
7
3,907 Views
Last Modified: 2008-08-26
Hi Folks,

what is your preferred way of comparing BSTRs - this is the only way i know:

int func1(BSTR val)
{
if(!strcmp((char *)val, "true")) return 1;
else return 0;
}

not surprising this doesn't work anyway...

thanks and regards.

0
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Question by:meverest
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7 Comments
 
LVL 5

Expert Comment

by:Wyn
ID: 2560811


int func1(BSTR val)
{
wchar_t str[]=L"true";
wchar_t* temp=val;
if(!wcscmp(++temp, temp))
return 1;
else return 0;
}
0
 
LVL 5

Expert Comment

by:Wyn
ID: 2560812


0
 
LVL 5

Expert Comment

by:Wyn
ID: 2560831
sorry,many typo:

int func1(BSTR val)
{
wchar_t str[]=L"true";
if(!wcscmp(val,str))
return 1;
else return 0;
}
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LVL 5

Expert Comment

by:Wyn
ID: 2560832
sorry,many typo:

int func1(BSTR val)
{
wchar_t str[]=L"true";
if(!wcscmp((wchar_t*)val,str))
return 1;
else return 0;
}
0
 
LVL 5

Accepted Solution

by:
Wyn earned 50 total points
ID: 2560836
hmmm
0
 
LVL 5

Expert Comment

by:Wyn
ID: 2560841
Here code again in case mess you up:)

int func1(BSTR val)
{
wchar_t str[]=L"true";
if(!wcscmp((wchar_t*)val, str))

//or simply use wcscmp((...),L"true")

return 1;
else return 0
}

Regards
W.Yinan
0
 
LVL 37

Author Comment

by:meverest
ID: 2562254
thanks, wcscmp() works fine.
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