C++Utils

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头文件Utils.h

#ifndef __UTILS__#define __UTILS__//timeLONG SystemTimeToTime_t(SYSTEMTIME& st);void Time_tToSystemTime(time_t t, LPSYSTEMTIME pst);void TimeUtcToLocal(LPSYSTEMTIME lpUtcTime, LPSYSTEMTIME lpSpecificLocalTime);void TimeLocalToUtc(LPSYSTEMTIME lpSpecificLocalTime, LPSYSTEMTIME lpUtcTime);time_t StringtimeToTime_t(std::string strTime);std::string StringtimeLocalToUTC(string strLocaltime);std::string SystemtimeLocalToUTC(SYSTEMTIME& sysTime);std::string StringtimeUTCToLocal(string strLocaltime);std::string SystimeToString(SYSTEMTIME& sysTime);//system time  >>>  20170406T18:55:00//char setvoid TurnToUtf8(string& strTurned);BOOL IsTextUTF8(char* str, ULONG length);//compare functionbool IsLessThan_String(std::string strParam1, std::string strParam2);bool CompareWithString(std::string strParam1, std::string strParam2);bool CompareWithStringNoCase(const char* szParam1, const char* szParam2);bool IsContainString(const char* strSource, const char* strTest);//std::string StringFormat_(const char* format, ...);#endif

源文件 Utils.cpp

#include "stdafx.h"#include "Utils.h"LONG SystemTimeToTime_t(SYSTEMTIME& st){    FILETIME ft;    SystemTimeToFileTime(&st, &ft);    ULARGE_INTEGER ui;    ui.LowPart = ft.dwLowDateTime;    ui.HighPart = ft.dwHighDateTime;    LONG tmm = (long)((LONGLONG)(ui.QuadPart - 116444736000000000) / 10000000);    return tmm;}std::string LocaltimeToISO8601(time_t time){    char buf[32];    strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S", gmtime(&time));    std::string iso8601_time_str(buf);    return iso8601_time_str;}std::string ISO8601ToLocaltime(const std::string& time){    struct std::tm time_struct;    std::istringstream ss(time);    ss >> std::get_time(&time_struct, "%Y-%m-%dT%H:%M:%S");    std::time_t time_unix = _mkgmtime(&time_struct);    if (time_unix == -1)    {        return "";    }    char current_time[32];    strftime(current_time, sizeof(current_time), "%Y-%m-%d %H:%M:%S", localtime(&time_unix));    std::string local_time_str(current_time);    return local_time_str;}void Time_tToSystemTime(time_t t, LPSYSTEMTIME pst){    FILETIME ft;    LONGLONG ll = Int32x32To64(t, 10000000) + 116444736000000000;    ft.dwLowDateTime = (DWORD)ll;    ft.dwHighDateTime = (DWORD)(ll >> 32);    FileTimeToSystemTime(&ft, pst);}void TimeUtcToLocal(LPSYSTEMTIME lpUtcTime, LPSYSTEMTIME lpSpecificLocalTime){    FILETIME ftLocal = { 0 }, ftUtc = { 0 };    SystemTimeToFileTime(lpUtcTime, &ftUtc);    FileTimeToLocalFileTime(&ftUtc, &ftLocal);    FileTimeToSystemTime(&ftLocal, lpSpecificLocalTime);}void TimeLocalToUtc(LPSYSTEMTIME lpSpecificLocalTime, LPSYSTEMTIME lpUtcTime){    FILETIME ftLocal = { 0 }, ftUtc = { 0 };    SystemTimeToFileTime(lpSpecificLocalTime, &ftLocal);    LocalFileTimeToFileTime(&ftLocal, &ftUtc);    FileTimeToSystemTime(&ftUtc, lpUtcTime);}time_t StringtimeToTime_t(std::string strTime){    struct std::tm time_struct;    std::istringstream ss(strTime);    ss >> std::get_time(&time_struct, "%Y-%m-%dT%H:%M:%S");    if (ss.fail()) return 0;    return _mkgmtime(&time_struct);}std::string StringtimeLocalToUTC(string strLocaltime){    SYSTEMTIME sysTime;    sscanf(strLocaltime.c_str(), "%04d-%02d-%02dT%02d:%02d:%02d", &sysTime.wYear, &sysTime.wMonth, &sysTime.wDay, &sysTime.wHour, &sysTime.wMinute, &sysTime.wSecond);    TimeLocalToUtc(&sysTime, &sysTime);    std::ostringstream os;    os << setw(4) << setfill('0') << sysTime.wYear << "-" << setw(2) << setfill('0') << sysTime.wMonth << "-" << setw(2) << setfill('0') << sysTime.wDay << "T" << setw(2) << setfill('0') << sysTime.wHour << ":" << setw(2) << setfill('0') << sysTime.wMinute << ":" << setw(2) << setfill('0') << sysTime.wSecond;    std::string strUtctime = os.str();    os.clear();    return std::move(strUtctime);}std::string SystemtimeLocalToUTC(SYSTEMTIME& sysTime){    TimeLocalToUtc(&sysTime, &sysTime);    std::ostringstream os;    os << setw(4) << setfill('0') << sysTime.wYear << "-" << setw(2) << setfill('0') << sysTime.wMonth << "-" << setw(2) << setfill('0') << sysTime.wDay << "T" << setw(2) << setfill('0') << sysTime.wHour << ":" << setw(2) << setfill('0') << sysTime.wMinute << ":" << setw(2) << setfill('0') << sysTime.wSecond;    std::string strUtctime = os.str();    os.clear();    return std::move(strUtctime);}std::string StringtimeUTCToLocal(string strLocaltime){    SYSTEMTIME sysTime;    sscanf(strLocaltime.c_str(), "%04d-%02d-%02dT%02d:%02d:%02d", &sysTime.wYear, &sysTime.wMonth, &sysTime.wDay, &sysTime.wHour, &sysTime.wMinute, &sysTime.wSecond);    TimeUtcToLocal(&sysTime, &sysTime);    std::ostringstream os;    os << setw(4) << setfill('0') << sysTime.wYear << "-" << setw(2) << setfill('0') << sysTime.wMonth << "-" << setw(2) << setfill('0') << sysTime.wDay << "T" << setw(2) << setfill('0') << sysTime.wHour << ":" << setw(2) << setfill('0') << sysTime.wMinute << ":" << setw(2) << setfill('0') << sysTime.wSecond;    std::string strUtctime = os.str();    os.clear();    return std::move(strUtctime);}std::string SystimeToString(SYSTEMTIME& sysTime){    std::ostringstream os;    os << setw(4) << setfill('0') << sysTime.wYear << "-" << setw(2) << setfill('0') << sysTime.wMonth << "-" << setw(2) << setfill('0') << sysTime.wDay << "T" << setw(2) << setfill('0') << sysTime.wHour << ":" << setw(2) << setfill('0') << sysTime.wMinute << ":" << setw(2) << setfill('0') << sysTime.wSecond;    std::string strUtctime = os.str();    os.clear();    return std::move(strUtctime);}void TurnToUtf8(string& strTurned){    if (IsTextUTF8((char*)strTurned.c_str(), strlen(strTurned.c_str())))    {        WCHAR *strSrc = NULL;        //CHAR *szRes = NULL;        int i = MultiByteToWideChar(CP_UTF8, 0, strTurned.c_str(), -1, NULL, 0);        strSrc = new WCHAR[i + 1];        MultiByteToWideChar(CP_UTF8, 0, strTurned.c_str(), -1, strSrc, i);        i = WideCharToMultiByte(CP_ACP, 0, strSrc, -1, NULL, 0, NULL, NULL);        //szRes = new CHAR[i + 1];        WideCharToMultiByte(CP_ACP, 0, strSrc, -1, (LPSTR)strTurned.c_str(), i, NULL, NULL);        if (strSrc != NULL)        {            delete[] strSrc;            strSrc = NULL;        }        //strCamera    }}BOOL IsTextUTF8(char* str, ULONG length){    ULONG i;    DWORD nBytes = 0;//UFT8可用1-6个字节编码,ASCII用一个字节    UCHAR chr;    BOOL bAllAscii = TRUE; //如果全部都是ASCII, 说明不是UTF-8    for (i = 0; i < length; i++)    {        chr = *(str + i);        if ((chr & 0x80) != 0) // 判断是否ASCII编码,如果不是,说明有可能是UTF-8,ASCII用7位编码,但用一个字节存,最高位标记为0,o0xxxxxxx            bAllAscii = FALSE;        if (nBytes == 0) //如果不是ASCII码,应该是多字节符,计算字节数        {            if (chr >= 0x80)            {                if (chr >= 0xFC && chr <= 0xFD)                    nBytes = 6;                else if (chr >= 0xF8)                    nBytes = 5;                else if (chr >= 0xF0)                    nBytes = 4;                else if (chr >= 0xE0)                    nBytes = 3;                else if (chr >= 0xC0)                    nBytes = 2;                else                {                    return FALSE;                }                nBytes--;            }        }        else //多字节符的非首字节,应为 10xxxxxx        {            if ((chr & 0xC0) != 0x80)            {                return FALSE;            }            nBytes--;        }    }    if (nBytes > 0)    {        return FALSE;    }    if (bAllAscii) //如果全部都是ASCII, 说明不是UTF-8    {        return FALSE;    }    return TRUE;}bool CompareWithString(std::string strParam1, std::string strParam2){    if (strParam1 == strParam2)    {        return true;    }    else    {        return false;    }}bool IsLessThan_String(std::string strParam1, std::string strParam2){    if (strParam1 <= strParam2)    {        return true;    }    else    {        return false;    }}bool CompareWithStringNoCase(const char* szParam1, const char* szParam2){    if (_stricmp(szParam1, szParam2) == 0)    {        return true;    }    else    {        return false;    }}bool IsContainString(const char* strSource, const char* strTest){    if (strstr(strSource, strTest) != nullptr)    {        return true;    }    else    {        return false;    }}std::string StringFormat_(const char* format, ...){    std::string strTemp;    if (format)    {        va_list vl;        va_start(vl);        size_t length = ::_vscprintf(format, vl) + 1;        vector<char> vec(length, '\0');        int iWrite;#ifdef __STDC_WANT_SECURE_LIB__        iWrite = _vsnprintf_s(&vec[0], length, length, format, vl);#else        iWrite = vsnprintf(&vec[0], length, format, vl);#endif        if (iWrite > 0)        {            strTemp = &vec[0];        }        va_end(vl);    }    return std::move(strTemp);}

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