Re: Różne nazwy konstruktora?

Article View: pl.comp.lang.c

Article #310338

#310338

From: Wojciech Muła
Date: Wed, 23 Dec 2020 15:22

30 lines
1932 bytes

On Wednesday, December 23, 2020 at 3:22:35 AM UTC+1, M.M. wrote:
> Trochę inne zagadnienie związane z konstruktorami, które zawsze mnie denerwowało w C++. 
> Poniższy kod w C++ się nie skompiluje: 
> 
> class A { 
> int a; 
> public: 
> A(const int a):a(a) { 
> } 
> }; 
> class B : public A { 
> }; 
> int main() 
> { 
> B b(3); 
> return 0; 
> } 
> 
> Natomiast odpowiedni kod w PHP działa bez zarzutu. Co by było złego, gdyby w C++ 
> konstruktory 'były dziedziczone' ? 

Od C++11:

class B: public A {
    using A::A;
};

Więcej na https://en.cppreference.com/w/cpp/language/using_declaration

w.

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Subject: Re: Różne nazwy konstruktora?
From: Wojciech Muła <wojciech_mula@poczta.onet.pl>
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