Mercurial > gnulib
view tests/test-fflush2.c @ 40193:5fd32d128129
relocatable-prog: Use wrapper-free installation also on Mac OS X.
Reported by Paul Smith <psmith@gnu.org>.
* build-aux/install-reloc: Accept a 'mode' argument as first argument.
(func_relativize): New function, from gnulib-tool.
Handle mode 'macosx' through invocations of 'otool' and
'install_name_tool'.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, set INSTALL_PROGRAM_ENV to an
'install-reloc' invocation with mode 'macosx'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 23 Feb 2019 22:42:54 +0100 |
parents | b06060465f09 |
children |
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/* Test of POSIX compatible fflush() function. Copyright (C) 2008-2019 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 <https://www.gnu.org/licenses/>. */ #include <config.h> #include <stdio.h> #include "binary-io.h" #include "macros.h" int main (int argc, char **argv) { int c; /* Avoid the well-known bugs of fflush() on streams in O_TEXT mode on native Windows platforms. */ set_binary_mode (0, O_BINARY); if (argc > 1) switch (argv[1][0]) { case '1': /* Check fflush after a backup ungetc() call. This is case 1a in terms of <https://lists.gnu.org/r/bug-gnulib/2008-03/msg00131.html>, according to the Austin Group's resolution on 2009-01-08. */ c = fgetc (stdin); ASSERT (c == '#'); c = fgetc (stdin); ASSERT (c == '!'); /* Here the file-position indicator must be 2. */ c = ungetc ('!', stdin); ASSERT (c == '!'); fflush (stdin); /* Here the file-position indicator must be 1. */ c = fgetc (stdin); ASSERT (c == '!'); c = fgetc (stdin); ASSERT (c == '/'); return 0; case '2': /* Check fflush after a non-backup ungetc() call. This is case 2a in terms of <https://lists.gnu.org/r/bug-gnulib/2008-03/msg00131.html>, according to the Austin Group's resolution on 2009-01-08. */ /* Check that fflush after a non-backup ungetc() call discards the ungetc buffer. This is mandated by POSIX <http://www.opengroup.org/susv3/functions/ungetc.html>: "The value of the file-position indicator for the stream after reading or discarding all pushed-back bytes shall be the same as it was before the bytes were pushed back." <http://www.opengroup.org/austin/aardvark/latest/xshbug3.txt> "[After fflush(),] the file offset of the underlying open file description shall be set to the file position of the stream, and any characters pushed back onto the stream by ungetc() or ungetwc() that have not subsequently been read from the stream shall be discarded." */ c = fgetc (stdin); ASSERT (c == '#'); c = fgetc (stdin); ASSERT (c == '!'); /* Here the file-position indicator must be 2. */ c = ungetc ('@', stdin); ASSERT (c == '@'); fflush (stdin); /* Here the file-position indicator must be 1. */ c = fgetc (stdin); ASSERT (c == '!'); c = fgetc (stdin); ASSERT (c == '/'); return 0; } return 1; }