1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <ios>
// template <class charT, class traits> class basic_ios
// void setstate(iostate state);
#include <ios>
#include <streambuf>
#include <cassert>
struct testbuf : public std::streambuf {};
int main()
{
{
std::ios ios(0);
ios.setstate(std::ios::goodbit);
assert(ios.rdstate() == std::ios::badbit);
try
{
ios.exceptions(std::ios::badbit);
}
catch (...)
{
}
try
{
ios.setstate(std::ios::goodbit);
assert(false);
}
catch (std::ios::failure&)
{
assert(ios.rdstate() == std::ios::badbit);
}
try
{
ios.setstate(std::ios::eofbit);
assert(false);
}
catch (std::ios::failure&)
{
assert(ios.rdstate() == (std::ios::eofbit | std::ios::badbit));
}
}
{
testbuf sb;
std::ios ios(&sb);
ios.setstate(std::ios::goodbit);
assert(ios.rdstate() == std::ios::goodbit);
ios.setstate(std::ios::eofbit);
assert(ios.rdstate() == std::ios::eofbit);
ios.setstate(std::ios::failbit);
assert(ios.rdstate() == (std::ios::eofbit | std::ios::failbit));
}
}
|
