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
|
//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// <sstream>
// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
// class basic_istringstream
// template <class charT, class traits, class Allocator>
// void
// swap(basic_istringstream<charT, traits, Allocator>& x,
// basic_istringstream<charT, traits, Allocator>& y);
#include <sstream>
#include <cassert>
int main()
{
{
std::istringstream ss0(" 123 456");
std::istringstream ss(" 789 321");
swap(ss, ss0);
assert(ss.rdbuf() != 0);
assert(ss.good());
assert(ss.str() == " 123 456");
int i = 0;
ss >> i;
assert(i == 123);
ss >> i;
assert(i == 456);
ss0 >> i;
assert(i == 789);
ss0 >> i;
assert(i == 321);
}
{
std::wistringstream ss0(L" 123 456");
std::wistringstream ss(L" 789 321");
swap(ss, ss0);
assert(ss.rdbuf() != 0);
assert(ss.good());
assert(ss.str() == L" 123 456");
int i = 0;
ss >> i;
assert(i == 123);
ss >> i;
assert(i == 456);
ss0 >> i;
assert(i == 789);
ss0 >> i;
assert(i == 321);
}
}
|
