1// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> 2 3// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// 27.8.1.4 Overridden virtual functions 22 23#include <fstream> 24#include <testsuite_hooks.h> 25#include <testsuite_io.h> 26 27// @require@ %-*.tst %-*.txt 28// @diff@ %-*.tst %*.txt 29 30const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it 31const char name_03[] = "tmp_sputn_2io.tst"; // empty file, need to create 32 33void test05() 34{ 35 using namespace std; 36 using namespace __gnu_test; 37 38 typedef filebuf::int_type int_type; 39 typedef filebuf::traits_type traits_type; 40 typedef size_t size_type; 41 42 bool test __attribute__((unused)) = true; 43 streamsize strmsz_1, strmsz_2; 44 45 // streamsize sputn(const char_typs* s, streamsize n) 46 // write up to n chars to out_cur from s, returning number assigned 47 // NB *sputn will happily put '\0' into your stream if you give it a chance* 48 49 // in | out 50 { 51 constraint_filebuf fb_03; 52 fb_03.pubsetbuf(0, 0); 53 fb_03.open(name_03, ios_base::out | ios_base::in | ios_base::trunc); 54 VERIFY( fb_03.unbuffered() ); 55 strmsz_1 = fb_03.sputn("racadabras", 10);//"abracadabras or what?" 56 VERIFY( strmsz_1 == 10 ); 57 strmsz_2 = fb_03.sputn(", i wanna reach out and", 10); 58 VERIFY( strmsz_2 == 10 ); 59 VERIFY( strmsz_1 == strmsz_2 ); 60 VERIFY( fb_03.unbuffered() ); 61 } 62} 63 64int main() 65{ 66 test05(); 67 return 0; 68} 69