Paul Ramsey <pramsey at cleverelephant.ca> writes: > As I fart around w/ header guards every time I add a new header/class, > I wonder if changing over to #pragma once would be OK with one and > all? GCC has had it 3.4, and clang has always had it, so…? Is that covered by any standards? (Presumably there is some other compiler people use on windows, too.)