On Thu, Jul 27, 2023 at 7:11 PM chuanqi.xcq via Gcc <gcc@gcc.gnu.org> wrote: > > Hi, > We're discussing to implement `-fno-coroutines` in clang so that we can > disable the coroutine feature with C++ standard higher than 20. > A full discussion can be found here: https://reviews.llvm.org/D156247. A > major motivation for us to do this is to keep consistency with GCC. > However, we don't find `-fno-coroutines` in > https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/C_002b_002b-Dialect-Options.html#index-fcoroutines. > Then we're not sure if GCC intends to support it. And we want to ask opinions > from GCC developers for `-fno-coroutines`.
It is already supported. Read https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/Invoking-GCC.html which says: ``` Many options have long names starting with ‘-f’ or with ‘-W’—for example, -fmove-loop-invariants, -Wformat and so on. Most of these have both positive and negative forms; the negative form of -ffoo is -fno-foo. This manual documents only one of these two forms, whichever one is not the default. ``` Thanks, Andrew > Thanks, > Chuanqi
