Sorting function not working (string comparison issue)

I've got a sorting function which should put all usernames starting from 3 character or more to the top of the array, and all the ones under 3

if(wcslen((WCHAR*)playerNames[i]) < 3)

(Which will all be "-") to the bottom and replaced with <Unknown>. I've tried the following but I sets weird debugger values when replacing "-" with "<Unknown>" and crashes.

char* playerNames[30] = { "Player1", "Player2", "Player3", "Player4", "Player5", "Player6", "-", "Player7", "-", "-", "-", "-", "Player8", "Player9", "Player10", "Player11", "Player12", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "Player14", "Player15" };
void sort(){
    char* sorted[29];
    int slot = 0;
    for (int i = 0; i < 30; i++){
        if (playerNames[i] != "-"){
            if (i == slot){
                sorted[slot] = playerNames[i];
            }
            else {
                sorted[i] = playerNames[i];
            }
            slot++;
        }
        else if (playerNames[i] == "-"){
            slot++;
        }
    }
    for (int i = 0; i < 30; i++){
        if (wcslen((WCHAR*)sorted[i]) < 3){
            sorted[i] = "<Unknown>";
        }
        playerNames[i] = sorted[i];
    }
}

This should return

Player1
Player2
Player3
Player4
Player5
Player6
Player7
Player8
Player9
Player10
Player11
Player12
Player13
Player14
Player15
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>
<Unknown>

EDIT: Tried the following, but I still don't get it to work:

void sort(){
    char* sorted[30];
    int slot = 0;
    for (int i = 0; i < 30; i++){
        if (strcmp(playerNames[i], "-") != 0){
            if (i == slot){
                sorted[slot] = playerNames[i];
            }
            else {
                sorted[i] = playerNames[i];
            }
            slot++;
        }
        else if (playerNames[i] == "-"){
            slot++;
        }
    }
    for (int i = 0; i < 30; i++){
        if (strlen(sorted[i]) < 3){
            sorted[i] = "<Unknown>";
        }
        playerNames[i] = sorted[i];
    }
}

Solution

Here's one problem: if (playerNames[i] != "-"){ will never execute the true branch because you're performing a pointer comparison, not a value comparison (C++ is not like Javascript or C#). You're comparing the memory address of a string in playerNames with the address of the literal string "-".

Also a few other points:

Don't use C-style casts in C++. Use the C++ casting operators (static_cast, dynamic_cast or reinterpret_cast instead as needed).
As you're using C++, use the STL's string types instead of C-style strings, as they have built-in comparison features.
playerNames has 30 elements but sorted has 29 elements. Why is there a difference?
sorted has function scope lifetime. Once sort returns any pointer to sorted is invalid and the data will likely be overwritten by a subsequent function call or stack allocation.
Your code doesn't actually perform any sorting, it simply iterates through the list twice resulting in, what seems to me, are meaningless comparisons.