Thread: whats the difference

Originally Posted by lilhawk2892

whats the difference between \n and endl they both do the same thing?

endl prints a newline AND flushes the output stream.

so you can do

Code:

for (int i = 0; i < 200; ++i)
{
   cout << i << '\n';
   if (i == 66)
   {  
      // crash here
      ASSERT(false);
   }
}

and your output may or may not get to 66 depending on your systems buffering.
but if you do

Code:

for (int i = 0; i < 200; ++i)
{
   cout << i << endl;
   if (i == 66)
   {  
      // crash here
      ASSERT(false);
   }
}

you're guarenteed to get 0-66 printed out. Of course, flushing the buffer causes a slight performance penalty. Profile to find out if it affects you.