As we all know, it's normal to initialize an array of int
like this:
int intAry[] = {7, 8, 9};
So, I want to know, how can initialize an array of std::vector in the same way
(just in the initial list):
typedef std::vector<int> type;
type vecAry[] = {vec1, vec2, vec3};
I know it's legal to write code as fllows, now my question how to initialize vecAry in one line of code:
type vec1;
type vec2;
type vec3;
type vecAry = {vec1, vec2, vec3};
In C++11,
type vecAry[] {{},{},{}};
or if you want non-empty vectors
type vecAry[] {{1,2,3},{4,5,6},{7,8,9}};
If you're stuck in the past, you can initialise it with empty vectors:
type vecAry[] = {type(), type(), type()};
but you can't initialise it with arbitrary values without some kind of helper like those in the Boost Assignment library :
type vecAry[] = {list_of(1)(2)(3), list_of(4)(5)(6), list_of(7)(8)(9)};
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