Thread: UCHAR array question

Originally Posted by Witchfinder

Hello,

I am trying to search a UCHAR array for the word DVD.

Code:

UCHAR  VolumeIdentifier[32];

Code:

        for(int i = 0; i < 30; i++)
        {
            if(VolumeIdentifier[i] == 'D')  
            {
                if(VolumeIdentifier[i + 1] == 'V')
                {
                    if(VolumeIdentifier[i + 2] == 'D')
                    {
                        counter++;
                    }
                }
                
            }
        }

The error is on each if statement. Error = invalid types UCHAR[int] for array subscript.

Does anyone know what would work?


Many thanks!

Interesting, UCHAR is defined as typdef unsigned char UCHAR, so the if statements should be fine, you can give this a try.

if ( temp[i] == (UCHAR)'A')

Make sure UCHAR is defined within the scope of your program(#ifdef). Also I might recommend using a function like strncmp.

Originally Posted by sbattu

Interesting, UCHAR is defined as typdef unsigned char UCHAR, so the if statements should be fine, you can give this a try.

if ( temp[i] == (UCHAR)'A')

Unfortunately it doesn't work. Thanks tho.

I can print VolumeIdentifier so it must be within the scope of the program. I could use strncmp but I still need to go to certain positions within the array, I think.

Sorted it. The functions going to output data through a GUI.

Thanks again.

Originally Posted by Witchfinder

I could use strncmp but I still need to go to certain positions within the array, I think.

You could still use strncmp. strncmp takes in a pointer, so as long as your keeping track of what position you are at, you can just add that number to the pointer.

counts word in line