| 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 <cstdint> |
| 11 | #include <type_traits> |
| 12 | |
| 13 | #include <babeltrace2/babeltrace.h> |
| 14 | |
| 15 | #include "borrowed-object.hpp" |
| 16 | |
| 17 | namespace bt2 { |
| 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 BorrowedObject<LibObjT> |
| 69 | { |
| 70 | private: |
| 71 | using typename BorrowedObject<LibObjT>::_ThisBorrowedObject; |
| 72 | |
| 73 | public: |
| 74 | using typename BorrowedObject<LibObjT>::LibObjPtr; |
| 75 | |
| 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 : _ThisBorrowedObject {libObjPtr} |
| 82 | { |
| 83 | } |
| 84 | |
| 85 | bool operator==(const ConstIntegerRange& other) const noexcept |
| 86 | { |
| 87 | return internal::ConstIntegerRangeSpec<LibObjT>::isEqual(this->libObjPtr(), |
| 88 | other.libObjPtr()); |
| 89 | } |
| 90 | |
| 91 | bool operator!=(const ConstIntegerRange& other) const noexcept |
| 92 | { |
| 93 | return !(*this == other); |
| 94 | } |
| 95 | |
| 96 | Value lower() const noexcept |
| 97 | { |
| 98 | return internal::ConstIntegerRangeSpec<LibObjT>::lower(this->libObjPtr()); |
| 99 | } |
| 100 | |
| 101 | Value upper() const noexcept |
| 102 | { |
| 103 | return internal::ConstIntegerRangeSpec<LibObjT>::upper(this->libObjPtr()); |
| 104 | } |
| 105 | }; |
| 106 | |
| 107 | using ConstUnsignedIntegerRange = ConstIntegerRange<const bt_integer_range_unsigned>; |
| 108 | using ConstSignedIntegerRange = ConstIntegerRange<const bt_integer_range_signed>; |
| 109 | |
| 110 | } /* namespace bt2 */ |
| 111 | |
| 112 | #endif /* BABELTRACE_CPP_COMMON_BT2_INTEGER_RANGE_HPP */ |