学步园

其中一种写法：

struct hook_info {
    string  lib_name;
    string  fun_name;
    int     param_count;
    bool    bIATHook;
    
    hook_info(char *lib, char* fun, int param, bool b) {
        lib_name    = lib;
        fun_name    = fun;
        param_count = param;
        bIATHook    = b;
    }

    bool  operator< ( const hook_info& a) const
    {
        if (this->lib_name.compare(a.lib_name) < 0)
            return true ;
        if (this->lib_name.compare(a.lib_name) > 0)
            return false;
        if (this->fun_name.compare(a.fun_name) < 0)
            return true ;
        if (this->fun_name.compare(a.fun_name) > 0)
            return false;
        if (this->param_count < a.param_count)
            return true;
        if (this->param_count > a.param_count)
            return false;
        if (this->bIATHook == false && a.bIATHook == true)
            return true;
        if (this->bIATHook == true && a.bIATHook == false)
            return false;
        return false;
    }
};