我編譯下面的代碼並獲得以下錯誤C2440錯誤。如何解決這個問題?謝謝你的幫助。錯誤重載時輸出操作
錯誤C2079: 'issline' 使用未定義類 '的std :: basic_istringstream < _Elem,_Traits,_Alloc>' 1> 1>
[1> _Elem =炭,1>
_Traits = STD :: char_traits,1> _Alloc =標準::分配器1> 1> d:\技術\ C++研究\ readparsing \ readparsing \ main.cpp中(49):錯誤 C2440:初始化:不能從轉換'的std :: string」到‘INT’1> 無可用的用戶定義的轉換操作,可以執行這個 轉換,或操作員不能稱爲 1> d:\技術\ C++研究\ readparsing \ readparsing \ main.cpp(51):錯誤 C2678:二進制'>>':找不到操作符,其中包含'int'類型的左手操作數 (或者沒有可接受的轉換)1>
d:\ technical \ C++ study \ readparsing \ readparsing \ timestamp.h(31):可以 是 '的std :: istream的&操作>>(的std :: istream的&,時間戳&)' 1>
試圖匹配參數列表 '(INT,時間戳)'
我在TimeStamp.h
#ifndef __TIMESTAMP_
#define __TIMESTAMP_
#include <iostream>
struct DateTime
{
unsigned int dwLowDateTime;
unsigned int dwHighDateTime;
};
class TimeStamp
{
public:
TimeStamp()
{
m_time.dwHighDateTime = 0;
m_time.dwLowDateTime = 0;
}
TimeStamp& operator = (unsigned __int64 other)
{
*(unsigned __int64*)&m_time = other;
return *this;
}
private:
DateTime m_time;
};
std::istream& operator >> (std::istream& input, TimeStamp& timeStamp);
#endif
下面的代碼0
在main.cpp中我有以下
#include <iostream>
#include <algorithm>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "TimeStamp.h"
std::istream& operator >> (std::istream& input, TimeStamp& timeStamp)
{
// 1.
// use regular stream operator parsing technique to parse individual integer x values (separated in the form "xxxx-xx-xx xx:xx:xx.xxx")
// for year, month, day, hour, minute, seconds, mseconds
unsigned int year;
unsigned int month;
unsigned int day;
unsigned int hour;
unsigned int minute;
unsigned int seconds;
unsigned int milliSeconds;
char dash;
char colon;
input >> year >> dash >> month >> dash >> day >> hour >> colon >> minute >> colon >> seconds >> colon >> milliSeconds;
cout << "Time stamp opeator is called " << std::endl;
// 2.
// code to be written.
return input;
}
int main() {
std::string dateTime = "2012-06-25 12:00:10.000";
TimeStamp myTimeStamp;
std::istringstream issline(dateTime);
issline >> myTimeStamp;
return 0;
}
反而是這個家庭作業?如果沒問題,我們只想知道。請標記爲這樣。 –
不,它不是一門功課。我對項目的工作就如同代碼部分我需要做的,所以我說要寫入。 – venkysmarty