Andreas Schwab, le dim. 29 déc. 2019 18:12:02 +0100, a ecrit: > > - for (; cmsg; cmsg = CMSG_NXTHDR (message, cmsg)) > > + for (; cmsg; cmsg = CMSG_NXTHDR ((struct msghdr *) message, cmsg)) > > Why is the first argument of __cmsg_nxthdr not const?
I don't know, it is so on other systems as well. I guess an issue is that if it was const, CMSG_NXTHDR would only be allowed to return a const, and the caller might actually want a non-const (and it passed a non-const). So it'd be a choice between cast-parameter vs cast-returned-value. Samuel
