8b87d3fa24
2003-07-05 David Billinghurst <David.Billinghurst@riotinto.com> * testsuite/27_io/basic_filebuf/close/char/4879.cc: xfail on cygwin * testsuite/27_io/basic_filebuf/close/char/9964.cc: Ditto * testsuite/27_io/basic_filebuf/open/char/9507.cc: Ditto * testsuite/27_io/basic_filebuf/showmanyc/char/9533-1.cc: Ditto * testsuite/27_io/basic_filebuf/underflow/char/10097.cc: Ditto * testsuite/27_io/objects/char/7.cc: Ditto * testsuite/27_io/objects/char/9661-1.cc: Ditto From-SVN: r68970
89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
// 2003-04-30 Petur Runolfsson <peturr02@ru.is>
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// Copyright (C) 2003 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// XXX cygwin does not support mkfifo
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// { dg-do run { xfail *-*-cygwin* } }
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#include <testsuite_hooks.h>
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#include <cstdio>
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#include <iostream>
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#include <unistd.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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// Check that cin.rdbuf()->sputbackc() puts characters back to stdin.
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// If cin.rdbuf() is a filebuf, this succeeds when stdin is a regular
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// file, but fails otherwise, hence the named fifo.
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void test01()
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{
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using namespace std;
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bool test = true;
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const char* name = "tmp_fifo5";
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signal(SIGPIPE, SIG_IGN);
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unlink(name);
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mkfifo(name, S_IRWXU);
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int child = fork();
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VERIFY( child != -1 );
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if (child == 0)
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{
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sleep(1);
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FILE* file = fopen(name, "w");
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fputs("Whatever\n", file);
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fflush(file);
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sleep(2);
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fclose(file);
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exit(0);
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}
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freopen(name, "r", stdin);
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sleep(2);
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int c1 = fgetc(stdin);
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VERIFY( c1 != EOF );
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int c2 = cin.rdbuf()->sputbackc('a');
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VERIFY( c2 != EOF );
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VERIFY( c2 == 'a' );
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int c3 = fgetc(stdin);
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VERIFY( c3 != EOF );
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VERIFY( c3 == c2 );
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int c4 = ungetc('b', stdin);
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VERIFY( c4 != EOF );
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VERIFY( c4 == 'b' );
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int c5 = cin.rdbuf()->sgetc();
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VERIFY( c5 != EOF );
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VERIFY( c5 == c4 );
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}
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int main()
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{
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test01();
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return 0;
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}
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