document that fileno(3) returns -1 for some kinds of FILE * objects;
authorschwarze <schwarze@openbsd.org>
Sun, 31 Oct 2021 16:56:47 +0000 (16:56 +0000)
committerschwarze <schwarze@openbsd.org>
Sun, 31 Oct 2021 16:56:47 +0000 (16:56 +0000)
commitb480c65e140f26f64a28fd3a669b10e480af82d0
treef5ffdf7c664feb11d26561d08a92175469d095cc
parentf70a35c1ac939e8e150fc052e9b2573f16a75c74
document that fileno(3) returns -1 for some kinds of FILE * objects;
triggerd by but simpler than a similar patch sent in
by Simon Branch <simonmbranch at gmail dot com>;
OK millert@ jmc@
lib/libc/stdio/ferror.3