swap.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c 
1//===----------------------------------------------------------------------===//
2//
3// ��������������������The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <ios>
11
12// template <class charT, class traits> class basic_ios
13
14// void move(basic_ios&& rhs);
15
16#include <ios>
17#include <streambuf>
18#include <cassert>
19
20struct testbuf
21    : public std::streambuf
22{
23};
24
25struct testios
26    : public std::ios
27{
28    testios(std::streambuf* p) : std::ios(p) {}
29    void swap(std::ios& x) {std::ios::swap(x);}
30};
31
32bool f1_called = false;
33bool f2_called = false;
34
35bool g1_called = false;
36bool g2_called = false;
37bool g3_called = false;
38
39void f1(std::ios_base::event ev, std::ios_base& stream, int index)
40{
41    assert(index == 4);
42    f1_called = true;
43}
44
45void f2(std::ios_base::event ev, std::ios_base& stream, int index)
46{
47    assert(index == 5);
48    f2_called = true;
49}
50
51void g1(std::ios_base::event ev, std::ios_base& stream, int index)
52{
53    assert(index == 7);
54    g1_called = true;
55}
56
57void g2(std::ios_base::event ev, std::ios_base& stream, int index)
58{
59    assert(index == 8);
60    g2_called = true;
61}
62
63void g3(std::ios_base::event ev, std::ios_base& stream, int index)
64{
65    assert(index == 9);
66    g3_called = true;
67}
68
69int main()
70{
71    testbuf sb1;
72    testios ios1(&sb1);
73    ios1.flags(std::ios::boolalpha | std::ios::dec | std::ios::fixed);
74    ios1.precision(1);
75    ios1.width(11);
76    ios1.imbue(std::locale("en_US"));
77    ios1.exceptions(std::ios::failbit);
78    ios1.setstate(std::ios::eofbit);
79    ios1.register_callback(f1, 4);
80    ios1.register_callback(f2, 5);
81    ios1.iword(0) = 1;
82    ios1.iword(1) = 2;
83    ios1.iword(2) = 3;
84    char c1, c2, c3;
85    ios1.pword(0) = &c1;
86    ios1.pword(1) = &c2;
87    ios1.pword(2) = &c3;
88    ios1.tie((std::ostream*)1);
89    ios1.fill('1');
90
91    testbuf sb2;
92    testios ios2(&sb2);
93    ios2.flags(std::ios::showpoint | std::ios::uppercase);
94    ios2.precision(2);
95    ios2.width(12);
96    ios2.imbue(std::locale("fr_FR"));
97    ios2.exceptions(std::ios::eofbit);
98    ios2.setstate(std::ios::goodbit);
99    ios2.register_callback(g1, 7);
100    ios2.register_callback(g2, 8);
101    ios2.register_callback(g3, 9);
102    ios2.iword(0) = 4;
103    ios2.iword(1) = 5;
104    ios2.iword(2) = 6;
105    ios2.iword(3) = 7;
106    ios2.iword(4) = 8;
107    ios2.iword(5) = 9;
108    char d1, d2;
109    ios2.pword(0) = &d1;
110    ios2.pword(1) = &d2;
111    ios2.tie((std::ostream*)2);
112    ios2.fill('2');
113
114    ios1.swap(ios2);
115
116    assert(ios1.rdstate() == std::ios::goodbit);
117    assert(ios1.rdbuf() == &sb1);
118    assert(ios1.flags() == (std::ios::showpoint | std::ios::uppercase));
119    assert(ios1.precision() == 2);
120    assert(ios1.width() == 12);
121    assert(ios1.getloc().name() == "fr_FR");
122    assert(ios1.exceptions() == std::ios::eofbit);
123    assert(!f1_called);
124    assert(!f2_called);
125    assert(!g1_called);
126    assert(!g2_called);
127    assert(!g3_called);
128    assert(ios1.iword(0) == 4);
129    assert(ios1.iword(1) == 5);
130    assert(ios1.iword(2) == 6);
131    assert(ios1.iword(3) == 7);
132    assert(ios1.iword(4) == 8);
133    assert(ios1.iword(5) == 9);
134    assert(ios1.pword(0) == &d1);
135    assert(ios1.pword(1) == &d2);
136    assert(ios1.tie() == (std::ostream*)2);
137    assert(ios1.fill() == '2');
138    ios1.imbue(std::locale("C"));
139    assert(!f1_called);
140    assert(!f2_called);
141    assert(g1_called);
142    assert(g2_called);
143    assert(g3_called);
144
145    assert(ios2.rdstate() == std::ios::eofbit);
146    assert(ios2.rdbuf() == &sb2);
147    assert(ios2.flags() == (std::ios::boolalpha | std::ios::dec | std::ios::fixed));
148    assert(ios2.precision() == 1);
149    assert(ios2.width() == 11);
150    assert(ios2.getloc().name() == "en_US");
151    assert(ios2.exceptions() == std::ios::failbit);
152    assert(ios2.iword(0) == 1);
153    assert(ios2.iword(1) == 2);
154    assert(ios2.iword(2) == 3);
155    assert(ios2.pword(0) == &c1);
156    assert(ios2.pword(1) == &c2);
157    assert(ios2.pword(2) == &c3);
158    assert(ios2.tie() == (std::ostream*)1);
159    assert(ios2.fill() == '1');
160    ios2.imbue(std::locale("C"));
161    assert(f1_called);
162    assert(f2_called);
163}
164