I know that declaring variables like this int a = 10, b = 15, c = 20 is possible and it's ok, but is it possible in any program in c++ programming language, to declare variables like this int a, b, c = 10, 15, 20 where a need to be 10, b need to be 15 and c to be 20.
Is this possible and is it right way to declare variables like this in c++?
EDIT: Is it possible with the overloading operator =?
The compiler will issue an error for such declarations
int a, b, c = 10, 15, 20; The only idea that comes to my head is the following :)
int a, b, c = ( a = 10, b = 15, 20 ); Or you could make these names data members of a structure
struct { int a, b, c; } s = { 10, 20, 30 }; EDIT: Is it possible with the overloading operator =?
There is not used the copy asssignment operator. It is a declaration. The copy assignment operator is used with objects that are already defined.:)
int a, b, c = 10, 15, 20; is not valid, (and even if it is it would probably initialize c to 20 (with comma operator) and let a and b uninitialized.
using c-array/std::array/std::vector may be an option:
int carray[3] = {10, 15, 20}; std::array<int, 3> a = {10, 15, 20}; std::vector<int> v = {10, 15, 20}; now we have carray[0] == a[0] && a[0] == v[0] && v[0] == 10
int a, b, c = 10, 15, 20;were legal, which it's not, I'm struggling to think of any way in which that syntax would be preferable or clearer than the perfectly legalint a = 10, b = 15, c = 20;.int a = 10, b = 15, c = 20;is perfectly legal, but i just asked because it's interesting way. i see that in some languages is possible, but i don't know is it possible in c++. Thanks on answer :)