What's this

Usage

print formated string

void mini_print(const std::string &fmt, const Args &...args);

format string

std::string mini_format(const std::string &fmt, const Args &...args);

log out

/* Pseudocode, MINI_LOG is a macro */
void MINI_LOG(const std::string &fmt, const Args &...args);

format customer types

inline std::ostream &operator<<(std::ostream &os, const T &t) {
 return os << "some_string_here";
}

The example

#include "mini_format.h"
struct T {
 int n;
};
inline std::ostream &operator<<(std::ostream &os, const T &t) {
 return os << mini_format("T({})", t.n);
}
int main() {
 T t{1024};
 
 std::string str = mini_format("xyz is {}", 999);
 mini_print("tom = {}, jerry = {}\n", "abcd", 1234);
 mini_print("float = {}, string = {}, t = {}\n", 3.14159, str, t);
 MINI_LOG("tom = {}, jerry = {}\n", "abcd", 1234);
 MINI_LOG("double = {}, string = {}\n", 3.14159, str);
 return 0;
}
/* The code outputs :
tom = abcd, jerry = 1234
float = 3.14159, string = xyz is 999, t = T(1024)
[2022年01月25日_21:44:46] [test.cpp:20] tom = abcd, jerry = 1234
[2022年01月25日_21:44:46] [test.cpp:21] double = 3.14159, string = xyz is 999
*/