Creator of LLVM, Clang, and Swift Says To Not Write Security Critical Code In C/C++

[Kagamin via Digitalmars-d]

On Wednesday, 15 July 2015 at 00:28:47 UTC, Ola Fosheim Grøstad 
wrote:
> I am happy if I see that I have consistent 20% headroom, and I 
> am not going to be happier by making my program faster...

But then why optimizations would matter? If the program is fast, 
you won't improve it by improving performance by 2 times: it will 
remain fast, and if it's slow, it's probably an algorithmic 
complexity. You said it yourself that to get performance from C 
you need extensions, it's not provided by C semantics itself.