Re: How to check -std=c89 or -std=gnu89 is set in C FE?

[Marek Polacek via Gcc-patches]

On Tue, Aug 02, 2022 at 04:19:56PM +0000, Qing Zhao via Gcc-patches wrote:
> Hi, Joseph,
> 
> When -std=c89 or -std=gnu89 present in the command line, in C FE, which flags 
> should be
> checked to decide it’s -std=c89 or -std=gnu89?

You should be able to check flag_iso and related.

Marek