C++ 11 instance noveho objektu – C / C++ – Fórum – Programujte.com

Zdravim vsechny, kompiluju ted svuj projekt v C++ pod C++11 a chtěl bych se zeptat

Když volám tohle:

Objekt p = {5,7,8,9};

Jak to zachytim v tride?

dekuji za odpovedi :-)

#2 Martin Kozibrátka
Diky moc, to cerpas z oficialnich stranek nebo je nejaka stranka kde jen vytah?

http://www.cplusplus.com/reference/initializer_list/initializer_list/

Čerpám to zde: http://www.stroustrup.com/C++11FAQ.html

#1 cibule
To co chces pouzit sa vola Uniform Initialization

#include <iostream>
#include <initializer_list>

struct A{
	int a;
	long b;
	float c;
	void print(){std::cerr << a << ", " << b << ", " << c << "\n";}
};

struct B{
	B(int){std::cerr << "B(int)\n";}
	B(int, int){std::cerr << "B(int, int)\n";}
	
};

struct C{
	C(std::initializer_list<int>){std::cerr << "C(std::initializer_list<int>)\n";}
	
};

int main(){
	//vsetky '=' mozu byt vynechane:
	
	int i = {1};
	
	A s1 = {1, 2, 3.0};	s1.print();
	A s2 = {1};	s2.print();
	
	B s3 = {1};		
	B s4 = {{1}};				
	B s5 = {1, 2};			
	
	C s6 = {1, 2, 3};		
	C s7[] = {{1,2,3}, {4, 5, 6}, {{1}, 2, {3}}};	
	
	return 0;
}