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1 | // 2001-06-05 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
3 | // Copyright (C) 2001 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
19 | // USA. | |
20 | ||
21 | // As a special exception, you may use this file as part of a free software | |
22 | // library without restriction. Specifically, if other files instantiate | |
23 | // templates or use macros or inline functions from this file, or you compile | |
24 | // this file and link it with other files to produce an executable, this | |
25 | // file does not by itself cause the resulting executable to be covered by | |
26 | // the GNU General Public License. This exception does not however | |
27 | // invalidate any other reasons why the executable file might be covered by | |
28 | // the GNU General Public License. | |
29 | ||
30 | // 27.4.2.1.6 class ios_base::init | |
31 | ||
32 | #include <fstream> | |
33 | #include <iostream> | |
fe413112 | 34 | #include <testsuite_hooks.h> |
5de197f2 BK |
35 | |
36 | class gnu_filebuf: public std::filebuf | |
37 | { | |
38 | int i; | |
39 | public: | |
40 | gnu_filebuf(int j = 1): i(j) { } | |
41 | ~gnu_filebuf() { --i; } | |
42 | int get_i() { return i;} | |
43 | }; | |
44 | ||
45 | const int initial = 4; | |
46 | gnu_filebuf buf(initial); | |
47 | ||
48 | // libstdc++/3045, in a vague way. | |
49 | void test01() | |
50 | { | |
51 | bool test = true; | |
52 | int k1; | |
53 | ||
54 | // 1 normal | |
55 | k1 = buf.get_i(); | |
56 | VERIFY( k1 == initial ); | |
57 | { | |
58 | std::cout.rdbuf(&buf); | |
59 | } | |
60 | k1 = buf.get_i(); | |
61 | VERIFY( k1 == initial ); | |
62 | ||
63 | // 2 syncd off | |
64 | k1 = buf.get_i(); | |
65 | VERIFY( k1 == initial ); | |
66 | { | |
67 | std::cout.rdbuf(&buf); | |
68 | std::ios_base::sync_with_stdio(false); // make sure doesn't clobber buf | |
69 | } | |
70 | k1 = buf.get_i(); | |
71 | VERIFY( k1 == initial ); | |
72 | ||
73 | // 3 callling init | |
74 | k1 = buf.get_i(); | |
75 | VERIFY( k1 == initial ); | |
76 | { | |
77 | std::cout.rdbuf(&buf); | |
78 | std::ios_base::Init make_sure_initialized; | |
79 | } | |
80 | k1 = buf.get_i(); | |
81 | VERIFY( k1 == initial ); | |
82 | } | |
83 | ||
84 | int main() | |
85 | { | |
86 | test01(); | |
87 | return 0; | |
88 | } |