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Dynamicly sized array in c++?

Started by TechnoGoth Nov 20, 2003 at 1:44 AM 2 replies 350+ views

Original Post

TechnoGoth

176

TechnoGoth

Nov 20, 2003 at 1:44 AM

Here is my problem I want to create a 3 dimensional array of a custom class, the size of which will be determined at runtime. now in java there is vector, which If I remember right does this. But does c++ have something like this? If so what header do import and how do I create and use it? Basically I need a data structure that can be used as 3 demenisonal array, it has to allow me to access any element at any time. example call: map[x][y][z].getTileType(); Can anyone help me out? ----------------------------------------------------- Writer, Programer, Cook, I'm a Jack of all Trades Current Design project Chaos Factor Design Document [edited by - TechnoGoth on November 20, 2003 2:59:57 AM]

MARS_999

363

MARS_999

Nov 20, 2003 at 1:50 AM

look up vector. Its a STL feature like string.

Ratterbox

Nov 20, 2003 at 1:53 AM

C++ too Includes a vector template

It works like this


#include <vector>

class CMyClass {
public:
    CMyClass() {}

    int        m_nMyStuff;
};

std::vector<CMyClass>  g_cClass;

[edited by - Ratterbox on November 20, 2003 2:54:37 AM]

alnite

410

alnite

Nov 20, 2003 at 3:42 AM

For three dimensional array, I think you need something like this:


std::vector< std::vector< std::vector< MyClass > > >  myclassArray;

don't remove the spaces in between. They are there so that the compiler won't mistake them as >> operator.

edit: damn forum tag.

[edited by - alnite on November 20, 2003 4:43:27 AM]

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