finding median of an array

[cash]

I'm having problems with an error saying "invalid operands" for the line "m= a[median]+a[median-1];"

 void median(DollarAmount a[], int size){ // calculates the median of the array
    int median;
    if(size%2==!0){
        median= size/2;
        cout << "The median is " << a[median] <<endl;
    }
    else{
        median= size/2;
        DollarAmount m;
        m= a[median]+a[median-1];
        m= m/2;
        cout << "The median is " << m <<endl;
    }
}

[keskiverto]

m = a[median] + a[median - 1];
invalid operands

"Operands" of an operator.

That line contains four operators:
* op- in median - 1. Integers, should not error.
* op[], array member indexing. Twice. Should not error.
* op= in m = result of expression. DollarAmount should have op= by default, unless you have prevented it.
* op+. How do you add DollarAmounts?

Overall, why can't you post the actual error message and save everybody's time?

[deleted account xyzzy]

Too little information to make an intelligent guess, so.......

Looks like DollarAmount might be a custom class. Do you have overload(s) for operator= and/or operator+?

If it is an alias for a builtin data type, like int or double, there shouldn't be an error.

Posting code that compiles as well as posting the entire error message you are getting will go a long way to help us be able to help you.

[cash]

I used the overload operators and fixed the "invalid operands" error, but now I have a linking error that I have difficulty fixing. I'll post my program below

[cash]

header DollarAmount.h

[cash]

main.cpp

[MikeyBoy]

Last post is a duplicate of http://www.cplusplus.com/forum/beginner/262982/

Please don't use multiple threads to ask the same question.