c++ 日期时间工具

简易的日期时间工具:

#include <iostream>
#include <sstream>
#include <time.h>
#include<chrono>
#include<iomanip>
#include<glog/logging.h>

namespace DateTimeUtils {
    //获取当前时间日期
    inline std::string GetCurrentDateTimeStr(const char* format = "%Y-%m-%d %H-%M-%S")
    {
        auto now = std::time(nullptr);
        struct tm tm = { 0 };
        localtime_s(&tm, &now);
        std::ostringstream oss;
        oss << std::put_time(&tm, format);
        return  oss.str();
    }
    //格式化时间戳到utc日期时间字符串
    inline std::string FormatDateTimeUTC(const time_t& time, const char* format = "%Y-%m-%d %H-%M-%S") {
        struct tm tm = { 0 };
        //检查入参是否合法
        localtime_s(&tm, &time);
        if (mktime(&tm) != time) {
            DLOG(ERROR) << "FormatDateTimeUTC Error invalidate input time:" << time;
            return "";
        }
        gmtime_s(&tm, &time);
        std::ostringstream oss;
        oss << std::put_time(&tm, format);
        return oss.str();
    }
    //格式化时间戳到本地日期时间字符串
    inline std::string FormatDateTimeLocal(const time_t& time, const char* format = "%Y-%m-%d %H-%M-%S") {
        struct tm tm = { 0 };
        localtime_s(&tm, &time);
        if (mktime(&tm) != time) {
            DLOG(ERROR) << "FormatDateTimeLocal Error invalidate input time:" << time;
            return "";
        }
        std::ostringstream oss;
        oss << std::put_time(&tm, format);
        return oss.str();
    }
    //根据日期字符串获得时间戳(秒)
    inline time_t GetTimeStampByDate(const char* date, const char* format = "%Y-%m-%d %H-%M-%S") {
        struct std::tm tm = { 0 };
        std::istringstream ss(date);
        ss >> std::get_time(&tm, format);
        if (ss.fail()) {
            DLOG(ERROR) << "Error GetTimeStamp date:  " << date << " format:" << format;
            return 0;
        }
        return mktime(&tm);
    }

    //获取毫秒时间戳
    inline time_t GetTimeStamp()
    {
        auto now = std::chrono::system_clock::now();
        return std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count();
    }

}