Question: I have serial data I want to compare a specific byte to the letter "G".

LPtype is a byte that was read from the serial port.

```
if (LPtype == "G")
{
    doThis();
}

```

I get the following error:

C++ forbids comparison between pointer and integer

What would be the proper way of comparing the incoming bye to the letter G? (or any other letter for that matter)

Answer: 
```
LPtype == 'G'

```

Singular quotes. But LP usually prefixes pointer types, in which case you should dereference it

```
*LPtype == 'G'

```

But if you're sure LPtype is indeed a byte value, then

```
LPtype == 'G' 

```

should work. The thing is that `"G"` has type `const char[2]`, and is not an integer type, whereas `'G'` has type `char` and is integer type
You can do this:

```
  LPtype == 'G'

```