指针宏不起作用

Question

我正在为要制造的引擎制作一个日志记录系统，但遇到了问题。我为引擎设置了许多宏，但不幸的是，它们似乎不起作用。这是我的代码：Log.cpp

#include "Log.h"
#include "spdlog/sinks/stdout_color_sinks.h"

namespace Divided
{
    std::shared_ptr<spdlog::logger> Log::s_CoreLogger;
    std::shared_ptr<spdlog::logger> Log::s_ClientLogger;

    void Log::Init()
    {
        spdlog::set_pattern("%^[%T] %n: %v%$");
        s_CoreLogger = spdlog::stdout_color_mt("DIVIDED");
        s_CoreLogger->set_level(spdlog::level::trace);
        s_ClientLogger = spdlog::stdout_color_mt("APP");
        s_ClientLogger->set_level(spdlog::level::trace);
    }
}

Log.h

#pragma once
#include <memory>
#include "Core.h"
#include "spdlog/spdlog.h"

namespace Divided
{
    class DIVIDED_API Log
    {
    public:
        static void Init();

        inline static std::shared_ptr<spdlog::logger>& GetCoreLogger() { return s_CoreLogger; }
        inline static std::shared_ptr<spdlog::logger>& GetClientLogger() { return s_ClientLogger; }
    private:
        static std::shared_ptr<spdlog::logger> s_CoreLogger;
        static std::shared_ptr<spdlog::logger> s_ClientLogger;
    };
}

//core logging macros
#define DV_CORE_FATAL(...) ::Divided::Log::GetCoreLogger->fatal(__VA_ARGS__)
#define DV_CORE_ERROR(...) ::Divided::Log::GetCoreLogger->error(__VA_ARGS__)
#define DV_CORE_WARN(...)  ::Divided::Log::GetCoreLogger->warn(__VA_ARGS__)
#define DV_CORE_INFO(...)  ::Divided::Log::GetCoreLogger->info(__VA_ARGS__)
#define DV_CORE_TRACE(...) ::Divided::Log::GetCoreLogger->trace(__VA_ARGS__)
                           ::
//client logging macros    ::
#define DV_FATAL(...)      ::Divided::Log::GetClientLogger->fatal(__VA_ARGS__)
#define DV_ERROR(...)      ::Divided::Log::GetClientLogger->error(__VA_ARGS__)
#define DV_WARN(...)       ::Divided::Log::GetClientLogger->warn(__VA_ARGS__)
#define DV_INFO(...)       ::Divided::Log::GetClientLogger->info(__VA_ARGS__)
#define DV_TRACE(...)      ::Divided::Log::GetClientLogger->trace(__VA_ARGS__)

和core.h

#pragma once

#ifdef DV_PLATFORM_WINDOWS
    #ifdef DV_BUILD_DLL
        #define DIVIDED_API __declspec(dllexport)
    #else
        #define DIVIDED_API __declspec(dllimport)
    #endif
#else
    #error DIVIDED ONLY SUPPORTS WINDOWS!
#endif

当我调用Visual Studio的任何宏时，都说->的左边必须指向数据类型。有谁知道为什么要刹车吗

Answer 1

这里的解决方案确实很简单。现在定义宏的方式将是指向试图调用应为成员函数的函数的指针。这显然是行不通的。必须做的是在GetClientLogger和GetCoreLogger的每次调用的末尾添加括号，以便这些函数的返回类型（类）将调用其正确的成员函数和现有的成员函数。