On Wed, 2023-04-19 at 14:35 +0200, Andy via Gcc-help wrote: > I don't learn C, but I am writing c90 Antlr grammar which should be as > compatible with GCC as possible. > I see many GNU extension, one is most significant is nested functions, > but all code is compilable with GCC with std=c90, not need std=gnu90, > although some code is compilable only with std=gnu90 -pedantic-errors will reject most GNU extensions if you don't want them. -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
