Question

I’m reading page 86 in this book about string and literals and i don’t understand why it says the following about string s1 and s2.

string s1("hello, ");  
string s2("world\n");  
string s3 = s1+s2;  
..

it says s1 and s2 included punctuation directly. Punctuation? What punctuation.

Also on page 87.

string s1 = "hello"; // no punctuation. Again what punctuation?

Can anyone explain?

Answer 1

I actually went in and looked at the book in question. The author is considering the “,” and the “\n” to be “punctuation.”

The very next sentence on page 86 said:

The strings s1 and s2 included punctuation directly. 
We could achieve the same result by mixing string objects 
and string literals as follows:

string s1("hello");
string s2("world");
string s3 = s1 + ", " + s2 + "\n";

— Dan