c++ - C++11 Difference in Constructors (Braces) -

c++ - C++11 Difference in Constructors (Braces) -

i quite new c++ , have observed, next lines of code deed differently

myclass c1; c1.do_work() //works myclass c2(); c2.do_work() //compiler error c2228: left side not class, structure, or union. myclass c3{}; c3.do_work() //works

with header file

class myclass { public: myclass(); void do_work(); };

can explain me, difference between 3 ways of creating object is? , why sec way produce compiler error?

ways 1 , 3 phone call default constructor.

myclass c3{};

is new initialization syntax called uniform initialization. called default brace initialization. however:

myclass c2();

declares function c2 takes no parameters homecoming type of myclass.

c++ c++11 constructor most-vexing-parse