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

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";

or

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