dynamic allocation.

How do I declare multi dimensional arrays?

Code:

char *ptr;
ptr = new char[size];

Worked... but...

Code:

char **ptr;
ptr = new char[3][2];

Gives an error 'Cannot convert char[2]* to char **'.

Code:

char * ptr[];
ptr = new char [2][3];

Obviuosly gave an error 'The size of ptr[] is unknown or zero.'

I tried some other combinations in vain; but they gave errors like 'Lvalue required'.
I checked many books, but they only give the syntax for single dimensional arrays...
Please Excuse if this question looks really stupid or if the answer is obvious...

This only works if you know the sizes of your minor dimensions at compile time

char (*ptr)[2];
ptr = new char[3][2];

you do nopt make a 2d array dynamically like that in c++. There is no operator new[][].
You will need to use a couple of loops. It has been covered many times. Search the boards to find code samples.

Boy, now this's quick reply.
I wanted to declare an array to store the data in a 'raw' file.
since I don't know the the dimensions of the file forehand, I asked this question...