variable scoope

[PT Exorcist]

well ive declared a string called "res" in a function...then i made a while that has a if inside that has a switch inside...then i try to assign a value to "res" but it says it's out of scoop..*** is this? it should work! lolol!

[PT Exorcist]

omg my IDE gone insane..now it points error to any operator just like += , % etc..omg LOL

[PT Exorcist]

made build several times and still gave error..now after a while it dont give more stupid errors but still make the out of scoope ...

[CornedBee]

Have you tried copying that part of the code to a different project and compiling it there? Just to test if the compiler really has gone insane.

[PT Exorcist]

hmm i think i gonna reset the comp lol

[PT Exorcist]

here's the code:

string res;
int mod = 0;
int currentDivision;
int currentRes;

currentDivision = decimalNumber;

while (currentDivision > mod)
{
    currentRes = currentDivision / 16;
    mod = currentDivision % 16;
    currentDivision = currentRes;
    
    if (!(mod <= 9))
    {
        switch (mod)
        {
            case 10:
                res += "A";
                break;
            case 11:
                res += "B";
                break;
            case 12:
                res += "C";
                break;
            case 13:
                res += "D";
                break;
            case 14:
                res += "E";
                break;
            case 15:
                res += "F";
                break;
        }
    }
    else
    {
        res += mod.ToString();
    }
}
MessageBox.Show(res);
return ""; 

[PT Exorcist]

tryed in another project and still the same damn bug omg how do i do this then?

[PT Exorcist]

omg it seems like i cant use variables inside a switch?

[Scott Penner]

I think you need to initialize your res variable. There needs to be something in there before you concatentate to it.

[DevGrp]

I think the problem might be with the else statement. I removed the else statement and put a default in. Try this.

string res;
int mod = 0;
int currentDivision;
int currentRes;

currentDivision = decimalNumber;

while (currentDivision > mod)
{
    currentRes = currentDivision / 16;
    mod = currentDivision % 16;
    currentDivision = currentRes;
    
    if (!(mod <= 9))
    {
        switch (mod)
        {
            case 10:
                res += "A";
                break;
            case 11:
                res += "B";
                break;
            case 12:
                res += "C";
                break;
            case 13:
                res += "D";
                break;
            case 14:
                res += "E";
                break;
            case 15:
                res += "F";
                break;
            default:
                res += mod.ToString();
                break;
        }
    }
}
MessageBox.Show(res);
return "";

[Lethal]

Scott is right. You have to initialize a variable before using one of its members. Your shortcut operator accesses a member before initialization. Initialize the variable to zero and you should be able to keep your else construct.

[PT Exorcist]

yea it was initialization that the problem ocurred...welll..but i dunno why that damn bug givin error in every single operator lol

[CornedBee]

Well, because every single operator does an operation on an uninitialized variable.

[Serge]

Just initialize your res variable when you declare it:
string res = "";