1// 2003-05-01 Petur Runolfsson <peturr02@ru.is> 2 3// Copyright (C) 2003-2015 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// { dg-require-fileio "" } 21 22#include <ext/stdio_sync_filebuf.h> 23#include <cstring> 24#include <testsuite_hooks.h> 25 26void test01() 27{ 28 using namespace std; 29 30 bool test __attribute__((unused)) = true; 31 const char* c_lit = "black pearl jasmine tea"; 32 unsigned size = strlen(c_lit); 33 const char* name = "stdiobuf-1.txt"; 34 35 FILE* fout = fopen(name, "w"); 36 VERIFY( fwrite(c_lit, 1, size, fout) == size ); 37 fclose(fout); 38 39 FILE* fin = fopen(name, "r"); 40 __gnu_cxx::stdio_sync_filebuf<char> sbuf(fin); 41 42 VERIFY( sbuf.sgetc() == c_lit[0] ); 43 VERIFY( getc(fin) == c_lit[0] ); 44 VERIFY( sbuf.sgetc() == c_lit[1] ); 45 VERIFY( sbuf.sbumpc() == c_lit[1] ); 46 VERIFY( ungetc('Z', fin) == 'Z' ); 47 VERIFY( sbuf.sbumpc() == 'Z' ); 48 VERIFY( getc(fin) == c_lit[2] ); 49 VERIFY( sbuf.sputbackc('X') == 'X' ); 50 VERIFY( getc(fin) == 'X' ); 51 52 char buf[5]; 53 memset(buf, 'x', 5); 54 VERIFY( sbuf.sgetn(buf, 5) == 5 ); 55 VERIFY( !memcmp(buf, c_lit + 3, 5) ); 56 VERIFY( getc(fin) == c_lit[8] ); 57 58 fclose(fin); 59} 60 61int main () 62{ 63 test01(); 64 return 0; 65} 66