C++ vector literals, or something like them

Question

I\'m writing some code against a C++ API that takes vectors of vectors of vectors, and it\'s getting tedious to write code like the following all over the place:

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Answer 1

In C++0x you will be able to use your desired syntax:

vector > > vvvs = 
    { { {"x","y", ... }, ... }, ... };

But in today's C++ you are limited to using boost.assign which lets you do:

vector vs1;
vs1 += "x", "y", ...;
vector vs2;
...
vector > vvs1;
vvs1 += vs1, vs2, ...;
vector > vvs2;
...
vector > > vvvs;
vvvs += vvs1, vvs2, ...;

... or using Qt's containers which let you do it in one go:

QVector > > vvvs =
    QVector > >() << (
        QVector >() << (
            QVector() << "x", "y", ...) <<
            ... ) <<
        ...
    ;

The other semi-sane option, at least for flat vectors, is to construct from an array:

string a[] = { "x", "y", "z" };
vector vec(a, a + 3);