libstdc++-v3/testsuite/ext/stdio_filebuf/char/10063-2.cc

   1 // Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // The ARM simulator does not provide support for "fstat", which
  20 // causes "sbumpc" to return an incorrect value.
  21 // { dg-do run { xfail arm*-*-elf arm*-*-eabi } }
  22
  23 // { dg-require-fileio "" }
  24
  25 #include <cstdio>
  26 #include <fstream>
  27 #include <ext/stdio_filebuf.h>
  28 #include <testsuite_hooks.h>
  29
  30 void test2()
  31 {
  32   using namespace std;
  33   bool test __attribute__((unused)) = true;
  34
  35   filebuf fbuf;
  36   fbuf.open("tmp_10063-2", ios_base::out | ios_base::trunc);
  37   fbuf.sputn("01234", 5);
  38   fbuf.close();
  39
  40   FILE* file = fopen("tmp_10063-2", "r");
  41   setbuf(file, NULL);
  42   int c = getc(file);
  43   VERIFY(c == '0');
  44   c = getc(file);
  45   VERIFY(c == '1');
  46   {
  47     __gnu_cxx::stdio_filebuf<char> sbuf(file, ios_base::in);
  48     c = sbuf.sbumpc();
  49     VERIFY(c == '2');
  50     c = sbuf.sbumpc();
  51     VERIFY(c == '3');
  52     c = sbuf.sbumpc();
  53     VERIFY(c == '4');
  54     c = sbuf.sgetc();
  55     VERIFY(c == EOF);
  56   }
  57   fclose(file);
  58 }
  59
  60 int main()
  61 {
  62   test2();
  63   return 0;
  64 }