Robert Haas <robertmhaas@gmail.com> writes:
> I was taught that when programming in C one should avoid returning a
> struct type, as BufTagGetRelFileLocator does.
FWIW, I think that was invalid pre-ANSI-C, and maybe even in C89.
C99 and later requires it. But it is pass-by-value and you have
to think twice about whether you want the struct to be copied.
regards, tom lane
