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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 | |
83f51799 | 18 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
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19 | // USA. |
20 | ||
21 | // 27.8.1.4 Overridden virtual functions | |
22 | ||
23 | #include <fstream> | |
24 | #include <testsuite_hooks.h> | |
25 | #include <testsuite_io.h> | |
26 | ||
27 | // @require@ %-*.tst %-*.txt | |
28 | // @diff@ %-*.tst %*.txt | |
29 | ||
30 | const char name_01[] = "sgetc.txt"; // file with data in it | |
31 | ||
32 | // Test overloaded virtual functions. | |
33 | void test01() | |
34 | { | |
35 | using namespace std; | |
aecf642c | 36 | using namespace __gnu_test; |
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37 | typedef std::filebuf::int_type int_type; |
38 | typedef filebuf::traits_type traits_type; | |
39 | ||
11f10e6b | 40 | bool test __attribute__((unused)) = true; |
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41 | int_type c1, c2, c3; |
42 | ||
43 | // int_type sputbackc(char_type c) | |
44 | // if in_cur not avail || ! traits::eq(c, gptr() [-1]), return pbfail | |
45 | // otherwise decrements in_cur and returns *gptr() | |
46 | ||
47 | // in | |
48 | { | |
49 | constraint_filebuf fb_01; // in | |
50 | fb_01.pubsetbuf(0, 0); | |
51 | fb_01.open(name_01, ios::in); | |
52 | VERIFY( fb_01.unbuffered() ); | |
53 | c1 = fb_01.sbumpc(); | |
54 | VERIFY( c1 == '/' ); | |
55 | c2 = fb_01.sputbackc('/'); | |
56 | VERIFY( c1 == c2 ); | |
57 | c3 = fb_01.sgetc(); | |
58 | VERIFY( c3 == c2 ); | |
59 | c3 = fb_01.sbumpc(); | |
60 | VERIFY( c3 == c2 ); | |
61 | fb_01.sbumpc(); | |
62 | c3 = fb_01.sbumpc(); | |
63 | VERIFY( c3 == ' ' ); | |
64 | c1 = fb_01.sgetc(); | |
65 | c2 = fb_01.sputbackc('a'); | |
66 | VERIFY( c2 == 'a' ); | |
67 | c3 = fb_01.sbumpc(); | |
68 | VERIFY( c3 == c2 ); | |
69 | c3 = fb_01.sgetc(); | |
70 | VERIFY( c1 == c3 ); | |
71 | fb_01.pubseekoff(5, ios_base::beg, ios_base::in); | |
72 | c1 = fb_01.sgetc(); | |
73 | VERIFY( c1 == '0' ); | |
74 | fb_01.sbumpc(); | |
75 | c1 = fb_01.sbumpc(); | |
76 | VERIFY( c1 == '1' ); | |
77 | c2 = fb_01.sputbackc('b'); | |
78 | VERIFY( c2 == 'b' ); | |
79 | fb_01.sbumpc(); | |
80 | c3 = fb_01.sbumpc(); | |
81 | VERIFY( c3 == '1' ); | |
82 | c3 = fb_01.sbumpc(); | |
83 | VERIFY( c3 == '7' ); | |
84 | VERIFY( fb_01.unbuffered() ); | |
85 | } | |
86 | } | |
87 | ||
11f10e6b | 88 | int main() |
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89 | { |
90 | test01(); | |
91 | return 0; | |
92 | } |