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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/utility $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2011,2014 */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef STL_UTILITY
#define STL_UTILITY
namespace std
{
/**
* Standard template pair
* See the C++ spec
*/
template <typename T1, typename T2>
struct pair
{
typedef T1 first_type;
typedef T2 second_type;
T1 first;
T2 second;
pair() : first(T1()), second(T2()) {}
pair(const T1 & x, const T2 & y) : first(x), second(y) {}
template <typename U, typename V>
pair (const pair<U,V> & p) : first(p.first), second(p.second) {}
};
/**
* Wrapper for creating a pair
* @param[in] x The first object
* @param[in] y The second object
* @return a newly-constructed pair<> object
*/
template <typename T1, typename T2> __attribute__ ((always_inline))
inline pair<T1,T2> make_pair (T1 x, T2 y)
{
return ( pair<T1,T2>(x,y) );
}
/**
* pair eq comparison
* @param[in] x The first object
* @param[in] y The second object
* @return true if x is strictly eq y
*/
template <typename T1, typename T2> __attribute__ ((always_inline))
inline bool operator==(const pair<T1, T2>& x, const pair<T1, T2>& y)
{
return x.first == y.first && x.second == y.second;
}
/**
* pair lt comparison
* @param[in] x The first object
* @param[in] y The second object
* @return true if x < y
*/
template<typename T1, typename T2> __attribute__ ((always_inline))
inline bool operator<(const pair<T1, T2>& x, const pair<T1, T2>& y)
{
return (x.first < y.first) ||
(!(y.first < x.first) && x.second < y.second);
}
/**
* pair ne comparison
* @param[in] x The first object
* @param[in] y The second object
* @return true if x != y
*/
template<typename T1, typename T2> __attribute__ ((always_inline))
inline bool operator!=(const pair<T1, T2>& x, const pair<T1, T2>& y)
{
return !(x == y);
}
/**
* pair gt comparison
* @param[in] x The first object
* @param[in] y The second object
* @return true if x > y
*/
template<typename T1, typename T2> __attribute__ ((always_inline))
inline bool operator>(const pair<T1, T2>& x, const pair<T1, T2>& y)
{
return y < x;
}
/**
* pair le comparison
* @param[in] x The first object
* @param[in] y The second object
* @return true if x <= y
*/
template<typename T1, typename T2> __attribute__ ((always_inline))
inline bool operator<=(const pair<T1, T2>& x, const pair<T1, T2>& y)
{
return !(y < x);
}
/**
* pair >= comparison
* @param[in] x The first object
* @param[in] y The second object
* @return true if x >= y
*/
template<typename T1, typename T2> __attribute__ ((always_inline))
inline bool operator>=(const pair<T1, T2>& x, const pair<T1, T2>& y)
{
return !(x < y);
}
};
#endif
/* vim: set filetype=cpp : */
|
