[uxcn]

Another minor thing I think belongs in the C standard is bswap. For such a common operation that's necessary for portable code, I personally don't understand why it hasn't been defined in either the C or C++ standard.

Currently, the only compiler I'm aware of that optimizes a bswap correctly is LLVM, which leaves a lot of code in the cold Aside from requiring people to write their own bswap, which is fairly maligned [1] for good reason, It leaves out a reasonably important optimization or potentially requires excess maintenance (platform libs, intrinsics, etc...) for people who do need portable code (the main reason for bswap).

I think languages are starting to take the place of platform independent interfaces, and my personal opinion is that bswap is fairly low hanging fruit. Given that one of the stated goals of C is portability, I think it fits well within the mandate.

[1] http://commandcenter.blogspot.com/2012/04/byte-order-fallacy...