The following escape sequences can be used to define certain special characters within strings:
|\nnn||Octal number (nnn)|
|\0||Null character (really just the octal number zero)|
|\xnnn||Hexadecimal number (nnn)|
An example of this is contained in the following code (which assumes that the newline character generates complete newlines, i.e. on Unix systems):
printf( "This\nis\na\ntest\n\nShe said, \"How are you?\"\n" );
which would display
This is a test She said, "How are you?"