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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/27_io/basic_stringbuf/seekpos/char/1.cc
1 // 981208 bkoz test functionality of basic_stringbuf for char_type == char
3 // Copyright (C) 1997-2020 Free Software Foundation, Inc.
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)
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.
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/>.
21 #include <testsuite_hooks.h>
23 std::string
str_01("mykonos. . . or what?");
24 std::stringbuf
strb_01(str_01
);
26 // test overloaded virtual functions
30 typedef std::stringbuf::int_type int_type
;
31 typedef std::stringbuf::pos_type pos_type
;
32 typedef std::stringbuf::off_type off_type
;
34 int_type c1
= strb_01
.sbumpc();
35 int_type c3
= strb_01
.sbumpc();
37 pos_type
pt_1(off_type(-1));
38 pos_type
pt_2(off_type(0));
42 // BUFFER MANAGEMENT & POSITIONING
45 // pubseekpos(pos_type sp, ios_base::openmode)
46 // alters the stream position to sp
47 strb_01
.str(str_01
); //in|out ("mykonos. . . or what?");
51 pt_1
= strb_01
.pubseekoff(2, std::ios_base::beg
);
52 off_1
= off_type(pt_1
);
54 pt_1
= strb_01
.pubseekoff(0, std::ios_base::cur
, std::ios_base::out
);
55 off_1
= off_type(pt_1
);
56 c1
= strb_01
.snextc(); //current in pointer +1
58 strb_01
.sputc('x'); //test current out pointer
59 str_tmp
= std::string("myxonos. . . or what?");
60 VERIFY( strb_01
.str() == str_tmp
);
61 strb_01
.pubsync(); //resets pointers
62 pt_2
= strb_01
.pubseekpos(pt_1
, std::ios_base::in
|std::ios_base::out
);
63 off_2
= off_type(pt_2
);
64 VERIFY( off_1
== off_2
);
65 c3
= strb_01
.snextc(); //current in pointer +1
67 strb_01
.sputc('x'); //test current out pointer
68 str_tmp
= std::string("myxonos. . . or what?");
69 VERIFY( strb_01
.str() == str_tmp
);