Can somebody explain the following syntax in this C++ code

Asked Oct 07 '20 at 10:30

Active Oct 07 '20 at 10:30

Viewed 36 times

 string swapLettersUpdated(string s, char c1, char c2) {
   transform(s.begin(), s.end(), s.begin(), [&c1, &c2](char c) {
        return c == c1 ? c2 : c == c2 ? c1 : c;
        });

    return s;
}

I have problems understanding the [&c1, &c2](char c) part and the part after return. It is a function that swaps letters.

asked Oct 07 '20 at 10:30

calin sirbu

That's a lambda capture and parameter list: https://en.cppreference.com/w/cpp/language/lambda – Simon Kraemer Oct 07 '20 at 10:33
the dupe is for lambdas, after the return is the conditional operator https://en.cppreference.com/w/cpp/language/operator_other – 463035818_is_not_a_number Oct 07 '20 at 10:33

Can somebody explain the following syntax in this C++ code

0 Answers0