Return the Stream for Chaining

Write a function ostream& printPair(ostream& out, int a, int b) that writes (a, b) — an opening parenthesis, the first number, a comma and a space, the second number, a closing parenthesis — to out with NO newline, and then returns out.

Output of printPair(cout, 1, 2) << "!\n"; (see Expected Output).

Do NOT write a main function.

Expected Output:

(1, 2)!↵
(5, 9) end↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Streamsostream

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