Belloc questions

• I'm having some difficulty interpreting bullet point (5.2.1.1) in paragraph §8.5.3/5 of N4140
• Private inheritance vs containment
• Why the definition of the assert macro, in a release build, cannot be just `#define assert(expression) 0`?
• What is the purpose of the bullet points in [basic.link]/8 in N4140? They don't seem to bring anything new the statement preceding them
• I'm having some difficulty understanding these comments about detecting integer overflows
• What do the words "undefined" mean in bullet point §5.19/2.3 in N4140?
• How to determine if two side effects on a assignment are unsequenced?
• Why does the author emphasizes the fact that operator[] cannot return 0?
• Why the first copy constructor is called in the code below ?
• Trying to understand [class.qual]/2 in the C++ Standard

Belloc answers