小函数

有这样的函数const std::string *my_names(){static const std::string priority_names[10] ={"FATAL","ALERT","CRIT","ERROR","WARN","NOTICE","INFO","DEBUG","NOTSET","UNKNOWN"};return priority_names;}这样调用的 my_names()[0],my_names()[1],my_names()[2];

/*!********************************************************************************   @brief 枚举类型的宏定义********************************************************************************/#define DECLARE_ENUM(E) \    struct E \    { \    public: \        E(int value = 0) : _value((__Enum)value) \        { \        } \        E& operator=(int value) \        { \            this->_value = (__Enum)value; \            return *this; \        } \        operator int() const  \        { \            return this->_value; \        } \    \        enum __Enum \        {#define END_ENUM \        }; \    \    private: \        __Enum _value; \    };/*!********************************************************************************   @brief  常用函数********************************************************************************/class CCommon{public:    CCommon();    ~CCommon();public:    /**    * @brief    将字符串转为大写    * @param    [IN] [OUT] 字符串    * @return   [OUT] 大写字符串    */    static std::string ToUpper(std::string &s);    /**    * @brief    将字符串转为小写    * @param    [IN] [OUT] 字符串    * @return   [OUT] 小写字符串    */    static std::string ToLower(std::string &s);    /**    * @brief    去除字符串空白符    * @param    要去除空白符的字符串("\r\n\t\x20")    * @return   去除空白符后的字符串    */    static std::string Trim(const std::string &str);    /**    * @brief    去除字符串左边空白符    * @param    要去除空白符的字符串    * @return   去除空白符后的字符串    */    static std::string TrimLeft(const std::string &s);    /**    * @brief    去除字符串右边空白符    * @param    要去除空白符的字符串    * @return   去除空白符后的字符串    */    static std::string TrimRight(const std::string &s);    /**    * @brief    CreateDir 创建多级目录    * @param    pDirpath [IN] 目录路径    * @return   int32_t [OUT] 0--成功，其他--失败    */    static int32_t CreateDir(const char * pDirpath);    /**    * @brief    把字符串根据分隔符sep分解，放到vector中    * @param    [IN]  s 欲分解字符串    * @param    [OUT] v 存放地方    * @param    [IN]  sep 分隔符    * @return   无    */    static void ListToVector(const char *s, std::vector<std::string>& v, int sep);    static void ListToVector(std::string s, std::vector<std::string>& v, const std::string sep);    static void ListToVector(std::string s, std::vector<std::string>& v, const char* sep);};/*!********************************************************************************   @brief 时间类，获取时间等操作********************************************************************************/class COsTime{public:    COsTime();    ~COsTime();public:    /**    * @brief    获取现在时间  格式为：YYYY-MM-DD HH24:MM:SS    * @param    无    * @return   格式为YYYY-MM-DD HH24:MM:SS的字符串    */    static std::string now();    /**    * @brief    时间格式化    * @param    [IN]    format 格式输入    * @return   [OUT]   格式化后字符串    */    static std::string Format(const char* format);    /**    * @brief    获取现在时间  格式为：YYYYMMDDHH24MMSS    * @param    无    * @return   格式为YYYYMMDDHH24MMSS的字符串    */    static std::string GetCurrentTime();    static std::string GetYear();    static std::string GetMonth();    static std::string GetWeekDay();};

 

/*!********************************************************************************   @brief 常用函数********************************************************************************/CCommon::CCommon(){}CCommon::~CCommon(){}string CCommon::ToUpper(string& s){    if (s.empty())        return s;    for (string::iterator it=s.begin(); it!=s.end(); ++it)    {        if (isalpha(*it))            *it = toupper(*it);    }    return s;}string CCommon::ToLower(string& s){    if (s.empty())        return s;    for (string::iterator it=s.begin(); it!=s.end(); ++it)    {        if (isalpha(*it))            *it = tolower(*it);    }    return s;}string CCommon::Trim(const string& str){    static const char* blank = "\r\n\t\x20";// \f\v    if (str.empty())        return str;    string::size_type a = str.find_first_not_of(blank);    string::size_type b = str.find_last_not_of(blank);    return string(str,a,b-a+1);}string CCommon::TrimLeft(const string &s){    string::const_iterator it;    if (s.empty())        return s;    for (it = s.begin(); it != s.end(); ++it)    {        if (!isspace(*it))            break;    }    return string(it,s.end());}string CCommon::TrimRight(const string &s){    string::difference_type dt;    string::const_reverse_iterator it;    if (s.empty())        return s;    for (it = s.rbegin(); it != s.rend(); ++it)    {        if (!isspace(*it))            break;    }    dt = s.rend() - it;    return string(s.begin(),s.begin() + dt);}int32_t CCommon::CreateDir(const char * pDirpath){    assert(NULL != pDirpath);    int32_t nRet = 0;    char * p = new char[strlen(pDirpath)+1];//char * p = strdup(pDirpath);    memset(p,0x00,strlen(pDirpath)+1);    memcpy(p,pDirpath,strlen(pDirpath));    int32_t length = strlen(p);    for (int32_t i=0;i<length;++i){        if (i == 0 && (p[0] == '\\' || p[i] == '/'))//根目录不要创建            continue;        if (p[i] == '\\' || p[i] == '/'){            p[i] = '\0';            nRet = access(p,0);//不存在，则创建            if (0 != nRet){                nRet = mkdir(p,0777);                if (0 != nRet)                    return nRet;            }            p[i] = '/';        }    }    nRet = access(p,0);    if (0 != nRet)        nRet = mkdir(p,0777);    delete [] p;//free(p);    return nRet;}void CCommon::ListToVector(const char* s, std::vector<string>& v, int sep){    assert(NULL != s);    char *index = NULL;    char *pos = NULL;    char *pCopy = new char[strlen(s)+1];    memset(pCopy,0x00,strlen(s)+1);    char *pBuf = new char[strlen(s)+1];    memset(pBuf,0x00,strlen(s)+1);    memcpy(pBuf,s,strlen(s));    pos = pBuf;    while(NULL != (index = strchr(pos,sep)))    {        memset(pCopy,0x00,strlen(s)+1);        strncpy(pCopy,pos,index-pos);        string str(pCopy);        v.push_back(str);        pos = index+1;    }    if (NULL == index)    {        memset(pCopy,0x00,strlen(s)+1);        strcpy(pCopy,pos);        string str(pCopy);        v.push_back(str);    }    delete [] pBuf;    delete [] pCopy;}void CCommon::ListToVector(string s, std::vector<string>& v, const string sep){    string::size_type nIndex = 0;    string::size_type nPos = 0;    v.clear();    while(string::npos != (nIndex=s.find(sep,nPos)))    {        string m = s.substr(nPos,nIndex-nPos);        v.push_back(m);        nPos = nIndex+1;    }}void CCommon::ListToVector(string s, std::vector<string>& v, const char* sep){    v.clear();    char* buffer = new char[s.length() + 1];    memcpy(buffer, s.c_str(), s.length());    buffer[s.length()] = 0;    char* token = strtok(buffer, sep);    while (token)    {        string sToken = token;        v.push_back(sToken);        token = strtok(NULL, sep);    }    delete [] buffer;}/*!********************************************************************************   @brief 时间类********************************************************************************/COsTime::COsTime(){}COsTime::~COsTime(){}string COsTime::now(){    const char * format = "%Y-%m-%d %H:%M:%S";    return Format(format);}string COsTime::Format(const char* format){    string s;    time_t lVal;tm *plocaltime = NULL;char buffer[128] = {0x00};time(&lVal);    if ((plocaltime = localtime(&lVal)) != 0 )    if (strftime(buffer, 128, format, plocaltime) > 0)            s = buffer;return s;}string COsTime::GetCurrentTime(){    const char * format = "%Y%m%d%H%M%S";    return Format(format);}std::string COsTime::GetYear(){    const char * format = "%Y";    return Format(format);}std::string COsTime::GetMonth(){    const char * format = "%m";    return Format(format);}std::string COsTime::GetWeekDay(){    const char * format = "%A";    return Format(format);}

#include #include #include #include #include #include #include #include