Re: openat wrapper assumes that O_RDONLY is disjoint from R_RDWR

[Bruno Haible]

Dan Gohman wrote:
> > if (flags & (O_CREAT | O_WRONLY | O_RDWR))
> 
> However, this can erroneously return true on systems where O_RDWR shares
> bits with R_RDONLY.

Would
   if (flags & ((O_CREAT | O_WRONLY | O_RDWR) & ~O_RDONLY))
be correct?

Bruno