Overflows in Phobos

[BLM768 via Digitalmars-d]

On Wednesday, 27 July 2016 at 07:59:54 UTC, Walter Bright wrote:
> "The expression assert(0) is a special case; it signifies code 
> that should be unreachable. If it is reached at runtime, either 
> AssertError is thrown or execution is terminated in an 
> implementation-defined manner. Any code after the assert(0) is 
> considered unreachable."

Let me take a stab at it:

The expression assert(0) is a special case; it signifies that the 
code which follows it (in its scope of execution) should be 
unreachable. If execution reaches an assert(0) expression at 
runtime, either AssertError is thrown, or execution is terminated 
in an implementation-defined manner.