62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
// 2003-04-12 Paolo Carlini <pcarlini at unitus dot it>
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// Copyright (C) 2003-2015 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 3, 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 COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// stdio_filebuf.h
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// { dg-require-fileio "" }
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#include <ext/stdio_filebuf.h>
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#include <cstdio>
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#include <fstream>
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#include <cstring>
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#include <testsuite_hooks.h>
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// Small stack-based buffers (i.e., using _M_unbuf) were not flushed
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// out by _M_really_overflow upon overflow.
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void test01()
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{
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using namespace std;
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bool test __attribute__((unused)) = true;
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const char* name = "tmp_file1";
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FILE* file = fopen(name, "w");
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{
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using namespace __gnu_cxx;
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stdio_filebuf<char> sbuf(file, ios_base::out, 2);
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sbuf.sputc('T');
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sbuf.sputc('S');
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sbuf.sputc('P');
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}
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fclose(file);
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filebuf fbuf;
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fbuf.open(name, ios_base::in);
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char buf[10];
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streamsize n = fbuf.sgetn(buf, sizeof(buf));
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fbuf.close();
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VERIFY( n == 3 );
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VERIFY( !memcmp(buf, "TSP", 3) );
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}
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int main()
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{
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test01();
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}
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