How am I suppose to find sum of std::vector of integers?

Question

I want to pass a string over the network, After Coding and Decoding How will i make sure that this is the same string ?

Answer 1

Iterate till end and take the sum

for(std::vector<int>::iterator it = vector.begin(); it != vector.end(); ++it)
    sum += *it;

Or you can use std::accumulate(vector.begin(), vector.end(), 0); if needs a library function.

Comments

Thanks, sir but I am wondering whether there is any standard way to find the sum, as we sort the vector elements by using sort()  function.

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You may have missed the second part there is something called accumulate but part of library numeric.

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My apologies for missing the second part , but I have one more question about the third argument, is it the initial value that accumulate will return and what if it is 0.0?

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I think its the init value so if you set the init value to be 5 then sum will be sum +5.