Thanks a lot for the info. Qing
> On Mar 20, 2023, at 6:25 PM, Jakub Jelinek <ja...@redhat.com> wrote: > > On Mon, Mar 20, 2023 at 10:05:57PM +0000, Qing Zhao via Gcc-patches wrote: >> My question: is the above section the place in C standard “explicitly allows >> contractions”? If not, where it is in C standard? > > http://port70.net/%7Ensz/c/c99/n1256.html#6.5p8 > http://port70.net/%7Ensz/c/c99/n1256.html#note78 > http://port70.net/%7Ensz/c/c99/n1256.html#F.6 > > Jakub >