libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/3.cc

   1 // 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2024 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
  27 const char name_01[] = "sgetn.txt";
  28
  29 void test06()
  30 {
  31   using namespace std;
  32
  33   char buffer[] = "xxxxxxxxxx";
  34   typedef filebuf::int_type     int_type;
  35   filebuf fbuf01;
  36   fbuf01.open(name_01, ios_base::in);
  37   int_type len1 = fbuf01.sgetn(buffer, sizeof(buffer));
  38   VERIFY( len1 == sizeof(buffer) );
  39   VERIFY( buffer[0] == '/' );
  40 }
  41
  42 int main()
  43 {
  44   test06();
  45   return 0;
  46 }