On 22.11.2017 02:09, codephantom wrote:
On Wednesday, 22 November 2017 at 00:49:02 UTC, Jonathan M Davis wrote:
While I definitely don't think that it's generally very hard to avoid
bugs with null pointers/references, telling someone to code correctly
in the first place isn't very useful.
Fair enough...perhaps I'm being too explicit with my argument.
However, my point is, that one should not overly rely on some magical
compiler for telling you what is 'true'.
...
That is not the role of the compiler here. The task of the compiler in
this circumstance is to tell you what is obvious, not what is true.
How can a compiler know that G is true if it cannot prove that G is true?
...
Because you proved it to the compiler.
You need to take this into account during your coding. Otherwise the
runtime system is your last line of defence.
You seem to assume that Rice's theorem applies to compilers, but not
programmers. Why is that?
