When Reading An Entire File, Embed The File Input Inside Of The Loop Condition

C Programming Tricks

When reading an entire file, embed the file input inside of the loop condition:

 std::ifstream inf("data.txt");
 char temp[100];
 while(!inf.getline(temp, 100).eof())
 {
   //process the line
 }
 
 the loop will exit once the end of the file is reached