On Fri, Nov 10, 2017 at 4:25 PM, R0b0t1 <r03...@gmail.com> wrote: > Hello, >
> > I'm having trouble finding the article again, but these functions look > very similar to Microsoft's extensions to the C standard. There is a > good case to be made that they are counterproductive. Yes, it looks like it. No wonder, if it's MS inspired. But what I care about is the fact that it's not optimized away, not the boundaries checking stuff. It's hard to believe that it is practically impossible to clean up a buffer, unless one is willing to forego all optimizations: http://www.daemonology.net/blog/2014-09-04-how-to-zero-a-buffer.html >> Of course, what would really solve the optimize-into-oblivion problem >> is a pragma that when invoked on a particular block of code (maybe >> only a function definition) would tell the compiler to do what the >> programmer says rather than viewing a function as a kind of black box. >> > > This would probably be useful. It may be wise to reimplement important > functionality. > No idea how difficult it would be to implement, of course. There might even exist a C keyword for that. After all, the C standard states the "as-if" rule, it might as well establish such an exception. Cheers Jorge
