Yes I got it. Now what will be the standard next move, what set of idents will become unavailable. ... On Thu, Apr 11, 2019 at 7:06 PM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > > On Thu, 11 Apr 2019 at 18:01, phi gcc <phi.gcc@xxxxxxxxx> wrote: > > > > Builtin symbols should be namespaced > > __exp() > > > > and he one who want the builtin short named could (and I guess the > > include math.h) can do that. > > > > #define exp __exp > > > > There is no problem of renaming it because as a user you will never > > set a BP into the builtin. > > > > With the reversed logic, compilers (or normalisation I guess) > > despotically pick a stdlib function name, decide it become a builtin, > > No, the language standard picked the name, and reserves "exp" as an > identifier with external linkage if you use any stdlib entity. So > defining another entity with that name and external linkage has > undefined behaviour.
