Vector problems, getting and setting values.

[chakaal]

Hi, I'm new here and new at c++ but I hope someone has time to help.

I'm trying to get two values from specific places in a vector, based on a position in another vector and assigning those values to ints. Then I'd like to replace the two values (a and b) with the result (c) and 0, but I can't find a way that doesn't involve iterators... And getting the values from a vector based on some values in another vector seems impossible using an iterator :(

I'm not so sure about the pointers either, but they shouldn't be causing the problem?

My main problems are; the ">>" doesn't make "a" equal to the value at "numbers.at(i)" and finding a way to replace values. I've tried using "numbers[i] = a" instead of at() but I didn't get it to work.

Any help is appreciated, thanks!

void Multiply::count() {
int i;

for (i = 0; i < signs.size(); i++) {
   if (signs.at(i) == '*') {
   numbers.at(i) >> a;
   numbers.at(i+1) >> b;
   c = *a * *b;
// numbers.insert(iterator, c); <- probably wrong, but you see what I want to do
// numbers.insert(iterator.next(),0);
   }
}

[firedraco]

How about: a = numbers.at(i);? With a being whatever type is contained within numbers.

[chakaal]

It works!! Thank you so much :) (a is an int)

Any tip on replacing values in a vector? I haven't yet found something helpful in the reference, but I shall continue my search.

EDIT: seems like at() could do that as well, testing.

EDIT2: Yes, now everything works :)