get an array of numbers from an input sequence of arbitrary length

[iochinome]

Hello all,

How would you go about getting an array of numbers from an input sequence of arbitrary length? i.e. the user can input:
1 -2 3 -4 5 -6 7 -8

I understand dynamic memory allocation, and can think of a way to do this that would involve a lengthy algorithm of looping through and checking for whitespace/(- sign) on either side, but is there a better way to go about it?

thanks!

- iochi

[Philip Nicoletti]

Just use a vector with push_back ... std::vector takes care of
all the re-allocation.

vector<int> v;

int value;

while (get next number)
{
   v.push_back(value);
}

You could use other containers also : std::list , std::deque

[iochinome]

Ah I'm sorry, I forgot to mention that this has to be done in C. Will this approach still work? (or is there another way that I have to do it?)

Thanks!

[answer]

sscanf? and allocate an array of 1 element. If sscanf("%d") succeeds then increase the size of the array with like realloc

[answer]

sscanf? and allocate an array of 1 element. If sscanf("%d") succeeds then increase the size of the array with like realloc