Allocation memory ?

[Anuj Garg]

How to allocate memory for 2-dimension array at run time ?

[James Curran]

Think carefully before you answer this question: How many dimensions must be dynamic at runtime?

If the number of columns is fixed, while the number of row must vary (which is the case about 95% of the time), the answer is fairly simple.

If both the number of rows and the number of columns must vary, it's a lot more difficult.



Truth,
James
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[Saeed]

How about

int **array
int nRows=5;
int nCols=3;

array= new int*[nRows];

for ( int index = 0; index < nRows; index++ )
{
array[index] = new int[nCols];
}

Now is this what you were looking for?

Share what you know and ask what you dont....

[Anuj Garg]

Yes Saeed, I want to ask same thing but in different way. I do not want to specify any size of an array.
Suppose I have 'n' values to insert to an array, now at run time, program should automatically expand the size of an array and store new value.

[Saeed]

You are better off looking at link lists
i suggest you look at
http://www.codeguru.com/cgi-bin/bbs/wt/showpost.pl?Board=vc&Number=296877

Share what you know and ask what you dont....

[Virtuality]

You don't give us any detail so I won't give you any :-) but if the standard C++ library doesn't have something for you (list, array, vector, etc.) then I'll go heave. Focusing on allocating memory worries me, are you sure you're thinking in C++ and not C? :)

[Anuj Garg]

THANKS for your KIND HELP.