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
|
#pragma once
namespace nall {
template<typename T> struct iterator {
iterator(T* self, u64 offset) : _self(self), _offset(offset) {}
auto operator*() -> T& { return _self[_offset]; }
auto operator!=(const iterator& source) const -> bool { return _offset != source._offset; }
auto operator++() -> iterator& { return _offset++, *this; }
auto offset() const -> u64 { return _offset; }
private:
T* _self;
u64 _offset;
};
template<typename T> struct iterator_const {
iterator_const(const T* self, u64 offset) : _self(self), _offset(offset) {}
auto operator*() -> const T& { return _self[_offset]; }
auto operator!=(const iterator_const& source) const -> bool { return _offset != source._offset; }
auto operator++() -> iterator_const& { return _offset++, *this; }
auto offset() const -> u64 { return _offset; }
private:
const T* _self;
u64 _offset;
};
template<typename T> struct reverse_iterator {
reverse_iterator(T* self, u64 offset) : _self(self), _offset(offset) {}
auto operator*() -> T& { return _self[_offset]; }
auto operator!=(const reverse_iterator& source) const -> bool { return _offset != source._offset; }
auto operator++() -> reverse_iterator& { return _offset--, *this; }
auto offset() const -> u64 { return _offset; }
private:
T* _self;
u64 _offset;
};
template<typename T> struct reverse_iterator_const {
reverse_iterator_const(const T* self, u64 offset) : _self(self), _offset(offset) {}
auto operator*() -> const T& { return _self[_offset]; }
auto operator!=(const reverse_iterator_const& source) const -> bool { return _offset != source._offset; }
auto operator++() -> reverse_iterator_const& { return _offset--, *this; }
auto offset() const -> u64 { return _offset; }
private:
const T* _self;
u64 _offset;
};
//std::rbegin(), std::rend() is missing from GCC 4.9; which I still target
template<typename T, u64 Size> auto rbegin(T (&array)[Size]) { return reverse_iterator<T>{array, Size - 1}; }
template<typename T, u64 Size> auto rend(T (&array)[Size]) { return reverse_iterator<T>{array, (u64)-1}; }
template<typename T> auto rbegin(T& self) { return self.rbegin(); }
template<typename T> auto rend(T& self) { return self.rend(); }
template<typename T> struct reverse_wrapper {
auto begin() { return rbegin(_self); }
auto end() { return rend(_self); }
auto begin() const { return rbegin(_self); }
auto end() const { return rend(_self); }
T _self;
};
template<typename T> auto reverse(T& object) -> reverse_wrapper<T&> {
return {object};
}
template<typename T> auto reverse(T&& object) -> reverse_wrapper<T> {
return {object};
}
}
|
