On Wed, 31 Aug 2022, Qing Zhao wrote: > >> When -std=gnu89 + -fstrict-flex-array=3 (ONLY C99 flexible array member > >> [] is treated as a valid flexible array) present together, > > > > That seems reasonable enough without a warning. If people want a warning > > for flexible array members in older language modes, they can use > > -pedantic; I don't think we need to warn for any particular > > -fstrict-flex-array modes there. > > So, you mean, > > 1. GCC with -std=gnu89 support all [0], [1], and [] as Flexible array member; > 2. Therefore. -std=gnu89 + -fstrict-flex-array=3 does not need a warning; > > ?
Yes. > Then, how about: > > -std=c89: > > 1. GCC with -std=c89 also support all [0], [1], and [] as Flexible array > member; > 2, therefore, -std=c89 + -fstrict-flex-array does not need a warning too. > > ? Yes. -- Joseph S. Myers jos...@codesourcery.com
