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
|
#pragma once
#include <string>
#include <sstream>
namespace wf
{
namespace log
{
/**
* Convert the given parameter to a string which can be logged.
* This function can be specialized for custom types.
*/
template<class T>
std::string to_string(T arg)
{
std::ostringstream out;
out << arg;
return out.str();
}
/** Specialization for boolean arguments - print true or false. */
template<>
std::string to_string(bool arg);
/* Specialization for pointers - print the address */
template<class T>
std::string to_string(T *arg)
{
if (!arg)
{
return "(null)";
}
return to_string<T*>(arg);
}
namespace detail
{
/**
* Convert each argument to a string and then concatenate them.
*/
template<class First>
std::string format_concat(First arg)
{
return wf::log::to_string(arg);
}
template<class First, class... Args>
std::string format_concat(First first, Args... args)
{
return format_concat(first) + format_concat(args...);
}
}
}
}
|
