std::string construction

This is a discussion on std::string construction within the C++ Programming forums, part of the General Programming Boards category; Hello Whats the shortest/easiest way to do the following thing with std::string: Code: std::string r; r = somestr + "@" ...

  1. #1
    l2u
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    std::string construction

    Hello

    Whats the shortest/easiest way to do the following thing with std::string:


    Code:
    std::string r;
    r = somestr + "@" + somestr2;
    Is it possible to do this in one line statement?

  2. #2
    Just Lurking Dave_Sinkula's Avatar
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    Code:
       std::string r(somestr + "@" + somestr2);
    7. It is easier to write an incorrect program than understand a correct one.
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  3. #3
    and the hat of sweating
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    I believe that will only work if the left-most string in the + concatenation sequence is a std::string (or has an equivalent operator+() ).

  4. #4
    Frequently Quite Prolix dwks's Avatar
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    Yes, if somestr is some other type such as a char[], you'd have to use something like
    Code:
    std::string r(std::string(somestr) + "@" + somestr2);
    That would be the shortest way, but perhaps not the easiest. This might be easier:
    Code:
    std::string r = somestr;
    r += "@";
    r += somestr2;
    dwk

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