To provide you with five possible code completions that address a CWE-476 vulnerability (NULL Pointer Dereference), I need a bit more context about the specific code or programming language you are using. However, I can provide general examples in C/C++ since it's a common language where pointer dereference issues are prevalent. Each example will include a safety check to prevent dereferencing a NULL pointer.

### Example 1: Basic NULL Check Before Dereferencing
```c
int* ptr = getPointer();
if (ptr != NULL) {
    // Safe to dereference ptr
    int value = *ptr;
    printf("Value: %d\n", value);
} else {
    printf("Pointer is NULL\n");
}
```

### Example 2: Function Return Safety Check
```c
int safeDereference(int* ptr) {
    if (ptr == NULL) {
        fprintf(stderr, "Received NULL pointer\n");
        return -1; // or other error handling
    }
    return *ptr;
}
```

### Example 3: Struct Pointer Check Before Access
```c
typedef struct {
    int data;
} MyStruct;

MyStruct* createStruct();

void processStruct() {
    MyStruct* myStruct = createStruct();
    if (myStruct != NULL) {
        printf("Data: %d\n", myStruct->data);
    } else {
        printf("Failed to allocate memory for MyStruct\n");
    }
}
```

### Example 4: Safe Array Access
```c
int* createArray(int size);

void printFirstElement() {
    int* array = createArray(10);
    if (array != NULL) {
        printf("First element: %d\n", array[0]);
    } else {
        printf("Memory allocation failed\n");
    }
}
```

### Example 5: Using a Wrapper Function for Safe Pointer Operations
```c
void performOperation(int* ptr) {
    if (ptr == NULL) {
        printf("Cannot perform operation on NULL pointer\n");
        return;
    }
    // Operation on non-NULL pointer
    *ptr += 10;
    printf("Operation performed\n");
}

int* getValidPointer() {
    int* newPtr = malloc(sizeof(int));
    if (newPtr != NULL) {
        *newPtr = 5;
    }
    return newPtr;
}

void exampleUsage() {
    int* ptr = getValidPointer();
    performOperation(ptr);
    if (ptr != NULL) {
        free(ptr);
    }
}
```

Each of these examples includes a check to ensure that the pointer is not NULL before it is dereferenced, thus mitigating the risk of a NULL pointer dereference, which is the essence of addressing CWE-476.