Hi! On Fri, Apr 21, 2023 at 12:45:16AM +0200, Alejandro Colomar wrote: > On 4/20/23 20:46, наб wrote: > > On Thu, Apr 20, 2023 at 07:23:39PM +0200, Alejandro Colomar wrote: > >> If preg is NULL, then I think any > >> error returned by a call to one of these APIs would be valid. > > That's unspecified. > I don't think so. POSIX says a "previous call". It doesn't say the > "latest" or "immediately preceeding" or similar wording. Don't you > understand the same from that paragraph? I read "a previous" as a shorthand for "the last non-zero value returned by regcomp( ) or regexec( )" from above originally; but yeah, now that you mention it, "just any returned error" is a valid read. I think just "must be latest if preg passed" is what ended up in v6 on the grounds of realism; if it's also the recise letter of POSIX then all the better. Best,
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