https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100558
康桓瑋 <hewillk at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hewillk at gmail dot com --- Comment #1 from 康桓瑋 <hewillk at gmail dot com> --- (In reply to Jooseong Lee from comment #0) > GCC 11.1.0 fails to compile this code > > https://wandbox.org/permlink/yWSpe4tVZTI3ljKg > > which has no problem in > > GCC 12.0 HEAD 20210511 (https://wandbox.org/permlink/YWzUzsmIjdqe5zvH) > GCC 10.1.0 (https://wandbox.org/permlink/wVsn1mqhLuS2R5vg) > > Some updates in 11.1.0 must be broken The problem here is narrowing conversion of list-initialization in require clause of range adaptors, which been resolved in https://github.com/gcc-mirror/gcc/commit/6e00d9bb113b531be15bc71cad2f1742648ba18a#diff-f6609135db2231e86a4562e8e69d605ff4ec06e6f02f43c5ffc23bc7126ab719.