C++: getting errors with some code -

i kind of stuck code im doing. have in comments.

//write function computes average value of array of floating-point data: //double average(double* a, int size) //in function, use pointer variable, not integer index, traverse array //elements.    #include <iostream>  using namespace std;   double average(double* a, int size)  {     double total = 0;     double* p = a;     // p starts @ beginning of array     (int = 0; < size; i++)     {         total = total + *p;         // add value p points         p++;         // advance p next array element     }     return total / size; } 

to start not running. , 2ndly, going doing problem correctly? tried following book go through elements , average out after... have strong feeling im missing something.

sorry if seems obvious of guys. still pretty new of , teacher doesn't exactly... doesn't teach coding aspect of c++. read 5 out of 200+ slides , hand tracing(not pseudo code) , throws wolves randomly picking coding assignment. way teaches if know how code, of , of us(like me) seeing first time.

she hasnt taught how use compiler, learning of ourselves. arg, sorry went on rant there. anyway can this?

your function correct.

here is, running, , resulting in correct output.

in case problem not aware (though seems unlikely), had add main function , provide data function work on:

int main() {     double array[5] = {1,2,3,4,5};     std::cout << average(array, 5); } 

but that's all had do.