how to autogenerate array?

[magix24]

let say, in my program i want to create an array for matrices. user can choose any name for the matrices. so, user can create as many matrices as they want. how can i make an autogenerate array so that it won't just limit to 2 - 3 matrices only.

[laserlight]

Use a vector of matrices? Or maybe a map, if the name of a matrix is particularly significant here.

[magix24]

can u give me some example?

[philkr]

let say, in my program i want to create an array for matrices. user can choose any name for the matrices. so, user can create as many matrices as they want. how can i make an autogenerate array so that it won't just limit to 2 - 3 matrices only.

If you want to use an array, you can only make it that big that the probability one needs to create so many matrices is very low.
Or you have to dynamically create a new bigger array everytime a new matrix is created, copy the data from the old and delete the old.

But both methods are not very good practice. You normally would use a linked list, or similar structures.

[magix24]

can anyone teach me how to use dynamic array?

[souldog]

you can teach yourself.

Search the web for std::vector.

[Kheun]

See this excellent article in CG.
http://www.codeguru.com/Cpp/Cpp/cpp_...icle.php/c4027