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juce_UMPIterator.h
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2022 - Raw Material Software Limited
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 The code included in this file is provided under the terms of the ISC license
11 http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12 To use, copy, modify, and/or distribute this software for any purpose with or
13 without fee is hereby granted provided that the above copyright notice and
14 this permission notice appear in all copies.
15
16 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18 DISCLAIMED.
19
20 ==============================================================================
21*/
22
23#ifndef DOXYGEN
24
25 namespace juce::universal_midi_packets
26{
27
37 class Iterator
38{
39 public:
41 Iterator() noexcept = default;
42
44 explicit Iterator (const uint32_t* ptr, size_t bytes) noexcept;
45
46 using difference_type = std::iterator_traits<const uint32_t*>::difference_type;
47 using value_type = View;
48 using reference = const View&;
49 using pointer = const View*;
50 using iterator_category = std::forward_iterator_tag;
51
53 Iterator& operator++() noexcept
54 {
55 const auto increment = view.size();
56
57 #if JUCE_DEBUG
58 // If you hit this, the memory region contained a truncated or otherwise
59 // malformed Universal MIDI Packet.
60 // The Iterator can only be used on regions containing complete packets!
61 jassert (increment <= bytesRemaining);
62 bytesRemaining -= increment;
63 #endif
64
65 view = View (view.data() + increment);
66 return *this;
67 }
68
73 Iterator operator++ (int) noexcept
74 {
75 auto copy = *this;
76 ++(*this);
77 return copy;
78 }
79
83 bool operator== (const Iterator& other) const noexcept
84 {
85 return view == other.view;
86 }
87
91 bool operator!= (const Iterator& other) const noexcept
92 {
93 return ! operator== (other);
94 }
95
101 reference operator*() noexcept { return view; }
102
108 pointer operator->() noexcept { return &view; }
109
110 private:
111 View view;
112
113 #if JUCE_DEBUG
114 size_t bytesRemaining = 0;
115 #endif
116};
117
118} // namespace juce::universal_midi_packets
119
120#endif
juce::universal_midi_packets::Iterator
Definition juce_UMPIterator.h:38
juce::universal_midi_packets::Iterator::Iterator
Iterator() noexcept=default
juce::universal_midi_packets::Iterator::operator->
pointer operator->() noexcept
Definition juce_UMPIterator.h:108
juce::universal_midi_packets::Iterator::operator++
Iterator & operator++() noexcept
Definition juce_UMPIterator.h:53
juce::universal_midi_packets::Iterator::operator*
reference operator*() noexcept
Definition juce_UMPIterator.h:101
juce::universal_midi_packets::Iterator::operator==
bool operator==(const Iterator &other) const noexcept
Definition juce_UMPIterator.h:83
juce::universal_midi_packets::Iterator::operator!=
bool operator!=(const Iterator &other) const noexcept
Definition juce_UMPIterator.h:91
juce::universal_midi_packets::View
Definition juce_UMPView.h:44
juce::universal_midi_packets::View::size
uint32_t size() const noexcept
Definition juce_UMPView.cpp:26
juce::universal_midi_packets::View::data
const uint32_t * data() const noexcept
Definition juce_UMPView.h:55