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, 2002, 2003 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 27.8.1.4 Overridden virtual functions
  22
  23 // { dg-require-fileio "" }
  24
  25 #include <fstream>
  26 #include <testsuite_hooks.h>
  27 #include <testsuite_io.h>
  28
  29 // @require@ %-*.tst %-*.txt
  30 // @diff@ %-*.tst %*.txt
  31
  32 const char name_01[] = "sgetc.txt"; // file with data in it
  33 const char name_02[] = "tmp_snextc_1out.tst"; // empty file, need to create
  34 const char name_03[] = "tmp_snextc_1io.tst"; // empty file, need to create
  35
  36 void test05()
  37 {
  38   using namespace std;
  39   using namespace __gnu_test;
  40   typedef filebuf::int_type     int_type;
  41   typedef filebuf::traits_type  traits_type;
  42
  43   bool test __attribute__((unused)) = true;
  44   int_type                      c1;
  45
  46   // int_type snextc()
  47   // calls sbumpc and if sbumpc != eof, return sgetc
  48
  49   // in
  50   {
  51     constraint_filebuf fb_01;
  52     fb_01.open(name_01, ios_base::in);
  53     VERIFY( !fb_01.write_position() );
  54     c1 = fb_01.snextc();
  55     VERIFY( c1 == '/' );
  56     c1 = fb_01.snextc();
  57     VERIFY( c1 == ' ' );
  58     VERIFY( !fb_01.write_position() );
  59     VERIFY( fb_01.read_position() );
  60   }
  61
  62   // in
  63   {
  64     constraint_filebuf fb_01;
  65     fb_01.open(name_01, ios_base::in);
  66     VERIFY( !fb_01.write_position() );
  67     int_type c4 = fb_01.sbumpc();
  68     VERIFY( c4 == '/' );
  69     c4 = fb_01.sbumpc();
  70     VERIFY( c4 == '/' );
  71     c4 = fb_01.sgetc();
  72     VERIFY( c4 == ' ' );
  73     c1 = fb_01.snextc();
  74     VERIFY( c1 == '9' );
  75     c4 = fb_01.sgetc();
  76     VERIFY( c4 == '9' );
  77     VERIFY( !fb_01.write_position() );
  78     VERIFY( fb_01.read_position() );
  79   }
  80 }
  81
  82 int main()
  83 {
  84   test05();
  85   return 0;
  86 }