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c++stringmfccomparelpcstr

C++ MFC how to compare LPCTSTR in a if statement?

I have the following code:

LPCTSTR strPermission = Method();

if (strPermission == L"0")
{
    return true;
}
else
{
    return false;
}

While debugging I can see that strPermission does equal "0", yet when I compare it like in the if statement it always returns false.

The only thing I can think of is that it is comparing the memory address of the variable rather than the variable value.

How do I compare strPermission to L"0" so that it would return true if strPermission equals "0".

Thank you!

Solution

  • You'll need to use a C runtime library function. strcmp compares ANSI strings, wcscmp compares UNICODE strings.

    You use it like this:

    bool match = wcscmp(strPermission, L"0") == 0;