Question

使用spdlog进行格式化时，是否可以扩展{}来支持自定义结构作为项？

所以当我有一个

struct p {
    int x;
    int y;
    int z;
};

p my_p;

我想做

spdlog::info("p = {}", my_p);
// after registering some kind of formatter object for {p}

代替

spdlog::info("p = (x={}, y={}, z={})", my_p.x, my_p.y, my_p.z);

Answer 1

#include "spdlog/spdlog.h"
#include "spdlog/fmt/ostr.h" // must be included

class some_class {};
std::ostream& operator<<(std::ostream& os, const some_class& c)
{ 
  return os << "some_class"; 
}

请参阅https://github.com/gabime/spdlog/wiki/1.-QuickStart#log-user-defined-objects

扩展自定义类型的spdlog

1 个答案: