Compacting an array in C++

[wael.salman]

bool bRemoveDuplicates(int array[], int iSize){
if(iSize <1)
return false;
if(array == NULL)
return false;
if(iSize == 1)
return true;

int left_comp = 0;
int right_comp = 1;
bool start_move = false;
int hole = iSize;

for(; right_comp <iSize;right_comp++,left_comp++){
if(array[left_comp] == array[right_comp]){
if(!start_move){
start_move = true;
hole = right_comp;
}
}
else if(start_move){
array[hole++] = array[right_comp];
}
}

for(;hole<iSize;hole++){
array[hole] = 0;
}

return true;
}