c++ - Use constructor from a class in another one to allocate an array with new -


i don't know (if it's possible) how allocate array class has constructor parameters using constructor parameters. example (i'll write what's relevant. uhm, doubt template is, still):

template <typename t> class c1 {     t *array;      public:         c1 (int n) {             array = new t [n];         }; };  class c2 {     int length;     int lengtharrayc1;     c1<t> *array;     public:         c2 (int x, int y) {             length = x;             lengtharrayc1 = y;             array = //and here's i'm lost         }; };

i tried writing in many ways:

array = new [length] c1<t> (lengtharrayc1);

but none worked.

can't it: object array initialization without default constructor

a type must have no-argument constructor in order new[] array of it. but, see tip in answer question using std::vector, allows specify prototype object use initializing array elements.


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