invalid lvalue in assignment error

[cdw9997]

Hi, I am getting invalid lvalue in assignment on the following line of code:

A[i]->getWater() += water;

Water is of type float.

I am trying to update the field in A[i]->getWater() with a variable water. Any help would be greatly appreciated.

Thanks

[kevinchkin]

getWater() looks like a function call. And you cannot assign value to a function

[jsmith]

Unless getWater() returns a non-const reference.

[Hammurabi]

Maybe you mean something like a[i]->setWater( a[i]->getWater() + water );. Either that or return a (non-const) reference like jsmith says.