Eric the Red

Is there any way to resize an array (of the same name)? Or do I "have to use a linked list"?

In java I could just do this.

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DaWei

Arrays in C/C++ are just contiguous collections of data. The are not individual objects in the sense that they are in Java. If you want to adjust your array size, allocate it dynamically, then you may do so. If it can't be upsized, a larger area will be allocated and the contents moved. A linked list is not necessaryily a good substitute for an array. Since you're using C++, investigate the STL (vectors, deques, etc.), as these are classes designed to do what you probably need to do. Resizing and all that good hooey is taken care of for you.

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Eric the Red

Okay.. Thanks

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Narue

>In java I could just do this.
That doesn't resize the array, it just points your reference to a completely different array. Tell me, what happens to the data in your old array now that you no longer have a reference to it? :p So I guess you can't just do that, or you'll end up writing really bad code.

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lectricpharaoh

Before you pick which you want to go with, you should carefully consider how your data will be accessed, as different data structures are optimized for different sets of operations. For example, adding to (the end of) a linked list is generally done in constant time, but adding or removing elements at arbitrary positions is done in linear time, and sorting is abysmally slow. If you're not familiar with the term 'big O notation', look it up; it's a way of measuring the approximate mathematical complexity of different algorithms with respect to given operations.Presumably, the Java GC will get around to cleaning it up at some point, after an arbitrarily long period of time has passed. I guess I'm not the only one who is frustrated at Java's lack of destructors.

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Eric the Red

Yeah I'm very familiar with it, I just had a test on that topic 2 weeks ago.

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Animatronic

I think narue was commenting on the fact that the code posted dosent resize the array, rather it just creates a new one, losing any information contained in the orignal.

bl00dninja

i'd check out vectors.

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