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
|
#include <cstdio>
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable : 4430)
# pragma warning(disable : 4305)
# pragma warning(disable : 4309)
# pragma warning(disable : 4838)
# pragma warning(disable : 4996)
#elif defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wsign-conversion"
#elif defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wsign-conversion"
#endif
#if defined(C4FLOAT_STD_ATOF)
#include <cstdlib>
double doit(const char *s) { return atof(s); }
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_SSCANF_F)
float doit(const char *s) { float val; sscanf(s, "%f", &val); return val; }
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_SSCANF_D)
double doit(const char *s) { double val; sscanf(s, "%lf", &val); return val; }
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_IOSTREAM_F)
#include <sstream>
float doit(const char *s) { std::stringstream ss; ss << s; float val; ss >> val; return val; }
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_IOSTREAM_D)
#include <sstream>
double doit(const char *s) { std::stringstream ss; ss << s; double val; ss >> val; return val; }
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_IOSTREAM_D)
#include <sstream>
double doit(const char *s) { std::stringstream ss; ss << s; double val; ss >> val; return val; }
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_FP_F_LIMITED)
#include <jkj/fp/from_chars/from_chars.h>
float doit(const char *s)
{
auto result = jkj::fp::from_chars_limited<float>(s, s+strlen(s));
return result.to_float();
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_FP_D_LIMITED)
#include <jkj/fp/from_chars/from_chars.h>
double doit(const char *s)
{
auto result = jkj::fp::from_chars_limited<double>(s, s+strlen(s));
return result.to_float();
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_FP_F_UNLIMITED)
#include <jkj/fp/from_chars/from_chars.h>
float doit(const char *s)
{
auto result = jkj::fp::from_chars_unlimited<float>(s, s+strlen(s));
return result.to_float();
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_FP_D_UNLIMITED)
#include <jkj/fp/from_chars/from_chars.h>
double doit(const char *s)
{
auto result = jkj::fp::from_chars_unlimited<double>(s, s+strlen(s));
return result.to_float();
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_FASTFLOAT_F)
#include <c4/ext/fast_float.hpp>
#include <cstring>
float doit(const char *s)
{
float result;
fast_float::from_chars(s, s+strlen(s), result);
return result;
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_FASTFLOAT_D)
#include <c4/ext/fast_float.hpp>
#include <cstring>
double doit(const char *s)
{
double result;
fast_float::from_chars(s, s+strlen(s), result);
return result;
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_STD_FROM_CHARS_F)
#include <charconv>
#include <cstring>
float doit(const char *s)
{
float result;
std::from_chars(s, s+strlen(s), result);
return result;
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_STD_FROM_CHARS_D)
#include <charconv>
#include <cstring>
double doit(const char *s)
{
double result;
std::from_chars(s, s+strlen(s), result);
return result;
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_RYU_F)
#include <ryu/ryu_parse.h>
float doit(const char *s)
{
float result;
s2f(s, &result);
return result;
}
#define C4_TO_REAL(s) doit(s)
#elif defined(C4FLOAT_RYU_D)
#include <ryu/ryu_parse.h>
double doit(const char *s)
{
double result;
s2d(s, &result);
return result;
}
#define C4_TO_REAL(s) doit(s)
#else
#define C4_TO_REAL(s) 0
#endif
int main()
{
#define BUFSIZE 128
char buf[BUFSIZE];
while(fgets(buf, BUFSIZE, stdin))
{
fputs(buf, stdout);
(void) C4_TO_REAL(buf);
}
}
#ifdef _MSC_VER
# pragma warning(pop)
#elif defined(__clang__)
# pragma clang diagnostic pop
#elif defined(__GNUC__)
# pragma GCC diagnostic pop
#endif
|
