1// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> 2 3// Copyright (C) 2001-2015 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 3, 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 COPYING3. If not see 18// <http://www.gnu.org/licenses/>. 19 20// 27.8.1.4 Overridden virtual functions 21 22// { dg-require-fileio "" } 23 24#include <fstream> 25#include <testsuite_hooks.h> 26#include <testsuite_io.h> 27 28// @require@ %-*.tst %-*.txt 29// @diff@ %-*.tst %*.txt 30 31const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it 32const char name_03[] = "tmp_sputn_2io.tst"; // empty file, need to create 33 34void test05() 35{ 36 using namespace std; 37 using namespace __gnu_test; 38 39 typedef filebuf::int_type int_type; 40 typedef filebuf::traits_type traits_type; 41 typedef size_t size_type; 42 43 bool test __attribute__((unused)) = true; 44 streamsize strmsz_1, strmsz_2; 45 46 // streamsize sputn(const char_typs* s, streamsize n) 47 // write up to n chars to out_cur from s, returning number assigned 48 // NB *sputn will happily put '\0' into your stream if you give it a chance* 49 50 // in | out 51 { 52 constraint_filebuf fb_03; 53 fb_03.pubsetbuf(0, 0); 54 fb_03.open(name_03, ios_base::out | ios_base::in | ios_base::trunc); 55 VERIFY( fb_03.unbuffered() ); 56 strmsz_1 = fb_03.sputn("racadabras", 10);//"abracadabras or what?" 57 VERIFY( strmsz_1 == 10 ); 58 strmsz_2 = fb_03.sputn(", i wanna reach out and", 10); 59 VERIFY( strmsz_2 == 10 ); 60 VERIFY( strmsz_1 == strmsz_2 ); 61 VERIFY( fb_03.unbuffered() ); 62 } 63} 64 65int main() 66{ 67 test05(); 68 return 0; 69} 70