Compare CString with TCHAR pointer

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How to compare CString with TCHAR pointer.

CSstring sFile1 = _T(d:\\gh");
TCHAR szFile1 = new TCHAR[100];

szFile1 = "d:\\gh";

how to compare sFile1 with szFile1

Posted 4-Dec-14 0:46am

Member 10168792

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barneyman 4-Dec-14 7:01am

http://msdn.microsoft.com/en-us/library/aa315043(v=vs.60).aspx#_mfc_cstring_comparison

2 solutions

Solution 1

Try Something Like this:

C++

if(sFile1.Compare((CString)szFile1)==0)
{
//Equal
}
else{
//Not Equal
}

Here first typecast szFile1 to CString then compare it.

Posted 4-Dec-14 1:38am

Member 10641779

Updated 4-Dec-14 1:39am

v2

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CPallini 4-Dec-14 7:56am

What are you doing?

Member 10641779 5-Dec-14 7:22am

First I'm typecasting TCHAR to CString then just comparing them.

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CPallini · Accepted Answer · 2014-12-04T01:54:00

You may safely compare the two string using the CString == operator (see MSDN[^]), e.g.

C++

CString str = _T("FOO");
TCHAR s[] = _T("FOO");
if ( str == s )
{// they are equal
}

Please note, your code

Quote:
TCHAR szFile1 = new TCHAR[100];

szFile1 = "d:\\gh";

features, at least, two mistakes:

You are trying to assigning an array to a single TCHAR variable (compiler error).
If you fix the previous error then, with next statement you are discarding the reference to dynamically allocated memory (runtime bad behavior: memory leak).