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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196 | #pragma once
#include <iostream><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <iomanip><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <string><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <vector><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <iterator><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <variant><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <ranges><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include "internal/dev_env.hpp"
#include "internal/resolving_rank.hpp"
namespace uni {
template<class Destination = std::ostream>
struct output_adaptor {
using destination_type = Destination;
private:
template<class T>
requires
requires (destination_type& out, T val) {
out << val;
}
int _put(uni::internal::resolving_rank<5>, T&& val) noexcept(NO_EXCEPT) {
*this->out << std::forward<T>(val);
return 0;
}
template<class T>
requires
requires (T&& val) {
val.val();
}
int _put(uni::internal::resolving_rank<4>, T&& val) noexcept(NO_EXCEPT) {
this->put(val.val());
return 0;
}
template<std::ranges::input_range T>
int _put(uni::internal::resolving_rank<3>, T&& val) noexcept(NO_EXCEPT) {
(*this)(std::ranges::begin(val), std::ranges::end(val), false);
return 0;
}
template<class T>
requires
requires (T&& val) {
val.first;
val.second;
}
int _put(uni::internal::resolving_rank<2>, T&& val) noexcept(NO_EXCEPT) {
*this << val.first, this->put_separator();
*this << val.second;
return 0;
}
template<class T>
requires
requires (T&& val) {
std::get<0>(val);
}
auto _put(uni::internal::resolving_rank<1>, T&& val) noexcept(NO_EXCEPT) {
std::apply([this](const auto&... args) constexpr { ((*this << args, this->put_separator()), ...); }, std::forward<T>(val));
return 0;
}
template<std::input_or_output_iterator T>
int _put(uni::internal::resolving_rank<0>, T&& val) noexcept(NO_EXCEPT) {
(*this)(*std::forward<T>(val));
return 0;
}
protected:
template<class T>
destination_type* put(T&& val) noexcept(NO_EXCEPT){
this->_put(uni::internal::resolving_rank<10>{}, std::forward<T>(val));
return this->out;
}
public:
using char_type = typename destination_type::char_type;
static constexpr auto sendl = std::endl<char_type,std::char_traits<char_type>>;
static constexpr auto sflush = std::flush<char_type,std::char_traits<char_type>>;
protected:
using sfunc_type = std::remove_const_t<decltype(output_adaptor::sendl)>;
public:
using separator_type = std::variant<std::string,sfunc_type>;
destination_type *out;
separator_type endline;
separator_type separator;
protected:
void put_separator() noexcept(NO_EXCEPT) {
if(this->separator.index() == 0) *this->out << std::get<std::string>(this->separator);
if(this->separator.index() == 1) *this->out << std::get<sfunc_type>(this->separator);
}
void put_endline() noexcept(NO_EXCEPT) {
if(this->endline.index() == 0) *this->out << std::get<std::string>(this->endline);
if(this->endline.index() == 1) *this->out << std::get<sfunc_type>(this->endline);
}
public:
template<class Terminator = std::string, class Separator = std::string>
output_adaptor(destination_type *des = &std::cout, Terminator endl = "\n", Separator sep = " ") noexcept(NO_EXCEPT)<--- Struct 'output_adaptor' has a constructor with 1 argument that is not explicit. [+]Struct 'output_adaptor' has a constructor with 1 argument that is not explicit. Such, so called "Converting constructors", should in general be explicit for type safety reasons as that prevents unintended implicit conversions.
: out(des), endline(endl), separator(sep)
{
*this << std::fixed << std::setprecision(20);
}
inline auto& seekp(const typename destination_type::off_type off, const std::ios_base::seekdir dir = std::ios_base::cur) noexcept(NO_EXCEPT) {
this->out->seekp(off, dir); return *this;
};
template<class T> inline output_adaptor& operator<<(T&& s) noexcept(NO_EXCEPT){
this->put(std::forward<T>(s));
return *this;
}
template<class T = std::string>
inline auto& operator()(T&& val = "") noexcept(NO_EXCEPT){
*this << std::forward<T>(val), this->put_endline();
return *this;
}
template<class T, class ...Args>
inline auto& operator()(T&& head, Args&& ...tail) noexcept(NO_EXCEPT){
*this << std::forward<T>(head), this->put_separator();
(*this)(std::forward<Args>(tail)...);
return *this;
}
template<std::forward_iterator I, std::sentinel_for<I> S>
inline auto& operator()(I first, S last, const bool terminate = true) noexcept(NO_EXCEPT) {
for(I itr=first; itr!=last;) {
*this << *itr;
if(++itr == last) {
if(terminate) this->put_endline();
}
else this->put_separator();
}
return *this;
}
template<class T>
inline auto& operator()(const std::initializer_list<T> vals) noexcept(NO_EXCEPT) {
std::vector wrapped(vals.begin(), vals.end());
(*this)(wrapped.begin(), wrapped.end());
return *this;
}
template<class T0, class T1>
inline auto& conditional(const bool cond, const T0& a, const T1& b) noexcept(NO_EXCEPT) {
if(cond) (*this)(a);
else (*this)(b);
return *this;
}
inline auto& yesno(const bool cond) noexcept(NO_EXCEPT) {
if(cond) this->yes();
else this->no();
return *this;
}
inline auto yes() noexcept(NO_EXCEPT) {
*this->out << "Yes";
this->put_endline();
return *this;
}
inline auto no() noexcept(NO_EXCEPT) {
*this->out << "No";
this->put_endline();
return *this;
}
inline auto flush() noexcept(NO_EXCEPT) {
*this->out << std::flush;
return *this;
}
};
} // namespace uni
|