c++ - "no matching function for call to : " compiler error -

class zbiornik { public:     zbiornik(int rozmiar)     {         int liczby[rozmiar];     } }; 

in code:

zbiornik cyfry; cyfry = liczby; 

can explain how fix main.cpp:67:10: error: no matching function call 'zbiornik::zbiornik()' , why it's happening?

i can't figure out missing, appreciated,

since defined user-defined constructor, implicit default constructor not generated compiler. idea wouldn't right thing if implicitly generated since have user-defined ctor. therefore, have define yourself:

zbiornik(){...} 

however, have mutiple problems cyfry = liczby; , int liczby[rozmiar]; not compile , don't know trying lines.

for one, rozmiar cannot used in constant expression.