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1 | /* |
2 | * Copyright (c) 2020 Philippe Proulx <pproulx@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: MIT | |
5 | */ | |
6 | ||
7 | #ifndef BABELTRACE_CPP_COMMON_BT2_INTEGER_RANGE_HPP | |
8 | #define BABELTRACE_CPP_COMMON_BT2_INTEGER_RANGE_HPP | |
9 | ||
10 | #include <type_traits> | |
11 | #include <cstdint> | |
12 | #include <babeltrace2/babeltrace.h> | |
13 | ||
14 | #include "internal/borrowed-obj.hpp" | |
15 | ||
16 | namespace bt2 { | |
17 | ||
18 | namespace internal { | |
19 | ||
20 | template <typename ValueT> | |
21 | struct ConstIntegerRangeSpec; | |
22 | ||
23 | // Functions specific to unsigned integer ranges | |
24 | template <> | |
25 | struct ConstIntegerRangeSpec<const bt_integer_range_unsigned> final | |
26 | { | |
27 | static std::uint64_t lower(const bt_integer_range_unsigned * const libRangePtr) noexcept | |
28 | { | |
29 | return bt_integer_range_unsigned_get_lower(libRangePtr); | |
30 | } | |
31 | ||
32 | static std::uint64_t upper(const bt_integer_range_unsigned * const libRangePtr) noexcept | |
33 | { | |
34 | return bt_integer_range_unsigned_get_upper(libRangePtr); | |
35 | } | |
36 | ||
37 | static bool isEqual(const bt_integer_range_unsigned * const libRangePtrA, | |
38 | const bt_integer_range_unsigned * const libRangePtrB) noexcept | |
39 | { | |
40 | return static_cast<bool>(bt_integer_range_unsigned_is_equal(libRangePtrA, libRangePtrB)); | |
41 | } | |
42 | }; | |
43 | ||
44 | // Functions specific to signed integer ranges | |
45 | template <> | |
46 | struct ConstIntegerRangeSpec<const bt_integer_range_signed> final | |
47 | { | |
48 | static std::int64_t lower(const bt_integer_range_signed * const libRangePtr) noexcept | |
49 | { | |
50 | return bt_integer_range_signed_get_lower(libRangePtr); | |
51 | } | |
52 | ||
53 | static std::int64_t upper(const bt_integer_range_signed * const libRangePtr) noexcept | |
54 | { | |
55 | return bt_integer_range_signed_get_upper(libRangePtr); | |
56 | } | |
57 | ||
58 | static bool isEqual(const bt_integer_range_signed * const libRangePtrA, | |
59 | const bt_integer_range_signed * const libRangePtrB) noexcept | |
60 | { | |
61 | return static_cast<bool>(bt_integer_range_signed_is_equal(libRangePtrA, libRangePtrB)); | |
62 | } | |
63 | }; | |
64 | ||
65 | } // namespace internal | |
66 | ||
67 | template <typename LibObjT> | |
68 | class ConstIntegerRange final : public internal::BorrowedObj<LibObjT> | |
69 | { | |
70 | private: | |
71 | using typename internal::BorrowedObj<LibObjT>::_ThisBorrowedObj; | |
72 | using typename internal::BorrowedObj<LibObjT>::_LibObjPtr; | |
73 | using _ThisConstIntegerRange = ConstIntegerRange<LibObjT>; | |
74 | ||
75 | public: | |
76 | using Value = | |
77 | typename std::conditional<std::is_same<LibObjT, const bt_integer_range_unsigned>::value, | |
78 | std::uint64_t, std::int64_t>::type; | |
79 | ||
80 | public: | |
81 | explicit ConstIntegerRange(const _LibObjPtr libObjPtr) noexcept : _ThisBorrowedObj {libObjPtr} | |
82 | { | |
83 | } | |
84 | ||
85 | ConstIntegerRange(const _ThisConstIntegerRange& range) noexcept : _ThisBorrowedObj {range} | |
86 | { | |
87 | } | |
88 | ||
89 | _ThisConstIntegerRange& operator=(const _ThisConstIntegerRange& range) noexcept | |
90 | { | |
91 | _ThisBorrowedObj::operator=(range); | |
92 | return *this; | |
93 | } | |
94 | ||
95 | bool operator==(const _ThisConstIntegerRange& other) const noexcept | |
96 | { | |
97 | return internal::ConstIntegerRangeSpec<LibObjT>::isEqual(this->_libObjPtr(), | |
98 | other._libObjPtr()); | |
99 | } | |
100 | ||
101 | bool operator!=(const _ThisConstIntegerRange& other) const noexcept | |
102 | { | |
103 | return !(*this == other); | |
104 | } | |
105 | ||
106 | Value lower() const noexcept | |
107 | { | |
108 | return internal::ConstIntegerRangeSpec<LibObjT>::lower(this->_libObjPtr()); | |
109 | } | |
110 | ||
111 | Value upper() const noexcept | |
112 | { | |
113 | return internal::ConstIntegerRangeSpec<LibObjT>::upper(this->_libObjPtr()); | |
114 | } | |
115 | }; | |
116 | ||
117 | using ConstUnsignedIntegerRange = ConstIntegerRange<const bt_integer_range_unsigned>; | |
118 | using ConstSignedIntegerRange = ConstIntegerRange<const bt_integer_range_signed>; | |
119 | ||
120 | } // namespace bt2 | |
121 | ||
122 | #endif // BABELTRACE_CPP_COMMON_BT2_INTEGER_RANGE_HPP |