How to split long lines of code in c++?

Question

I need to make sure none of the lines in my code exceeds a a certain length.

Normally I separate lines where there\'s a comma or another suitable break.

How

Answer 1

Two options:

cout << "Error:This is a really long "
 << "error message that exceeds "
 << "the maximum permitted length.\n";

Or:

cout << "Error:This is a really long "
    "error message that exceeds "
    "the maximum permitted length.\n";

The second one is more efficient.