Bremsstrahlung

Consider the following code, which is the first portion of a loop, assuming the existence of const vector<char>& buffer:

for (int i = 0; i < size_of_vector; i++) {
      //getting delta from buffer
      char c = buffer[n_byte_read/+i];

Although this code is well-formed, it is certain to crash, because of the division by the induction variable on the first iteration. What I find most amusing here is that the well-formedness of the code hinges on the unary plus operator¹. Sadly, this particular landmine has been sitting in our code repository for around two years waiting to be stepped on, without anyone noticing until now.