Andres Freund <and...@anarazel.de> writes:
> One of the recent commits have introduce a new warning with gcc 10, when
> building with optimizations:

> In file included from 
> /home/andres/src/postgresql/src/backend/regex/regcomp.c:2304:
> /home/andres/src/postgresql/src/backend/regex/regc_nfa.c: In function 
> ‘checkmatchall’:
> /home/andres/src/postgresql/src/backend/regex/regc_nfa.c:3087:20: warning: 
> array subscript -1 is outside array bounds of ‘_Bool[257]’ [-Warray-bounds]
>  3087 |    hasmatch[depth] = true;
>       |                    ^

Hmph.  There's an "assert(depth >= 0)" immediately in front of that,
so I'm not looking too kindly on the compiler thinking it's smarter
than I am.  Do you have a suggestion on how to shut it up?

                        regards, tom lane


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