// s isn't declared before
std::string(s);
s = "Hellow world";
It compiles and works as if s was declared as usual at least on msvc and gcc (C++14).
Why is it so? Did not find explanation in standard. Does it contradicts the standard?
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Jarod42
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`std::string(s);` is a valid declaration of `s`. – Mat Oct 01 '18 at 09:09
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No, it doesn't contradict the standard. http://eel.is/c++draft/dcl.decl#dcl.meaning-6 – Henri Menke Oct 01 '18 at 09:10