Writing log file in c++

void saveLog(int n,double timeelapsed1,double timeelapsed2)
{

ofstream SaveFile("logsort.txt",ios::app);
SaveFile << "No. of elements : "<<n<<endl;
SaveFile << "Time taken by bubblesort : "<<timeelapsed1<<endl;
SaveFile << "Time taken by quicksort : "<<timeelapsed2<<endl;
SaveFile.close();

}