Simply declaring a function gives you a pointer to that function. Which reminds me of the time I wrote this in a PR to FreeBSD: if ((Lflag ? chown : lchow

Simply declaring a function gives you a pointer to that function. Which reminds me of the time I wrote this in a PR to FreeBSD: if ((Lflag ? chown : lchown)(p->fts_accpath, -1, s->st_gid)) /* .. */ a line that turned out to be incredibly polarising amongst code reviewers. Explanation for those not well versed in C: the ternary in the left-hand parentheses is selecting which syscall wrapper function will be dereferenced and called with the arguments in the right-hand parentheses. It relies on the chown(2) and lchown(2) syscall wrappers having identical function signatures.