Mercurial > gnulib
view tests/test-recvfrom.c @ 17364:7524d97ae56f
stdalign: port to stricter ISO C11
ISO C11 says that _Alignof's operand must be a parenthesized type.
Problem reported by Eli Zaretskii in
<http://lists.gnu.org/archive/html/emacs-devel/2013-03/msg00960.html>.
* doc/posix-headers/stdalign.texi (stdalign.h): Document this.
* m4/stdalign.m4 (gl_STDALIGN_H): Don't use _Alignof (expr).
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Fri, 29 Mar 2013 19:47:13 -0700 |
parents | 87f819736ab1 |
children | 344018b6e5d7 |
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/* Test the recvfrom() function. Copyright (C) 2011-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <config.h> #include <sys/socket.h> #include "signature.h" SIGNATURE_CHECK (recvfrom, ssize_t, (int, void *, size_t, int, struct sockaddr *, socklen_t *)); #include <errno.h> #include <netinet/in.h> #include <unistd.h> #include "sockets.h" #include "macros.h" int main (void) { (void) gl_sockets_startup (SOCKETS_1_1); /* Test behaviour for invalid file descriptors. */ { char byte; struct sockaddr_in addr; socklen_t addrlen = sizeof (addr); errno = 0; ASSERT (recvfrom (-1, &byte, 1, 0, (struct sockaddr *) &addr, &addrlen) == -1); ASSERT (errno == EBADF); } { char byte; struct sockaddr_in addr; socklen_t addrlen = sizeof (addr); close (99); errno = 0; ASSERT (recvfrom (99, &byte, 1, 0, (struct sockaddr *) &addr, &addrlen) == -1); ASSERT (errno == EBADF); } return 0; }