libstdc++-v3/testsuite/27_io/basic_filebuf/snextc/char/1-in.cc

   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
  31 const char name_01[] = "sgetc.txt"; // file with data in it
  32 const char name_02[] = "tmp_snextc_1out.tst"; // empty file, need to create
  33 const char name_03[] = "tmp_snextc_1io.tst"; // empty file, need to create
  34
  35 void test05()
  36 {
  37   using namespace std;
  38   using namespace __gnu_test;
  39   typedef filebuf::int_type     int_type;
  40   typedef filebuf::traits_type  traits_type;
  41
  42   bool test __attribute__((unused)) = true;
  43   int_type                      c1;
  44
  45   // int_type snextc()
  46   // calls sbumpc and if sbumpc != eof, return sgetc
  47
  48   // in
  49   {
  50     constraint_filebuf fb_01;
  51     fb_01.open(name_01, ios_base::in);
  52     VERIFY( !fb_01.write_position() );
  53     c1 = fb_01.snextc();
  54     VERIFY( c1 == '/' );
  55     c1 = fb_01.snextc();
  56     VERIFY( c1 == ' ' );
  57     VERIFY( !fb_01.write_position() );
  58     VERIFY( fb_01.read_position() );
  59   }
  60
  61   // in
  62   {
  63     constraint_filebuf fb_01;
  64     fb_01.open(name_01, ios_base::in);
  65     VERIFY( !fb_01.write_position() );
  66     int_type c4 = fb_01.sbumpc();
  67     VERIFY( c4 == '/' );
  68     c4 = fb_01.sbumpc();
  69     VERIFY( c4 == '/' );
  70     c4 = fb_01.sgetc();
  71     VERIFY( c4 == ' ' );
  72     c1 = fb_01.snextc();
  73     VERIFY( c1 == '9' );
  74     c4 = fb_01.sgetc();
  75     VERIFY( c4 == '9' );
  76     VERIFY( !fb_01.write_position() );
  77     VERIFY( fb_01.read_position() );
  78   }
  79 }
  80
  81 int main()
  82 {
  83   test05();
  84   return 0;
  85 }