this question has answer here:
- most vexing parse 1 answer
one of question on c++ faq discusses correct way declare local object within function: http://www.parashift.com/c++-faq/fn-decl-vs-obj-instantiation.html
given example faq:
class bar { public: bar(); }; class foo { public: foo(bar const& b); void blah(); }; void yourcode() { foo x(bar()); // error } in vs2012, error foo x(bar (__cdecl *)(void))': prototyped function not called (was variable definition intended?)
could explain me why this declaration gives error ?(c++ faq explanation vague). foo , bar both visible within body of yourcode(), , foo x(bar()); way declare object of type foo.
as c++'s vexing parse, can do:
foo x((bar())); or
foo x = bar(); the details reviewed in parashift link provided in question.
note though, second example break if foo copy constructor made explicit.
