无法访问类“CObject"中声明的私有成员? [英] Cannot access private member declared in class 'CObject'?
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问题描述
class EventDataValue {
public:
enum Types {
NONE,
INT,
STRING,
DOUBLE,
ULONG
};
EventDataValue() { this->Type = NONE; }
EventDataValue( const EventDataValue &s ) {
this->Type = s.Type;
if (this->Type == INT)
this->i = s.i;
else if (this->Type == STRING)
this->s = s.s;
else if (this->Type == DOUBLE)
this->d = s.d;
else if (this->Type == ULONG)
this->ul = s.ul;
}
EventDataValue& operator=( const EventDataValue &s ) {
this->Type = s.Type;
if (this->Type == INT)
this->i = s.i;
else if (this->Type == STRING)
this->s = s.s;
else if (this->Type == DOUBLE)
this->d = s.d;
else if (this->Type == ULONG)
this->ul = s.ul;
return *this;
}
EventDataValue(int value) {
this->Type = INT;
this->i = value;
}
EventDataValue(CString &value) {
this->Type = STRING;
this->s = value;
}
EventDataValue(LPCTSTR value) {
this->Type = STRING;
this->s = CString(value);
}
EventDataValue(double value) {
this->Type = DOUBLE;
this->d = value;
}
EventDataValue(unsigned long value) {
this->Type = ULONG;
this->ul = value;
}
~EventDataValue() { }
operator int(void) const {
return this->i;
}
operator CString(void) const {
return this->s;
}
operator double(void) const {
return this->d;
}
operator unsigned long(void) const {
return this->ul;
}
Types Type;
int i;
CString s;
double d;
unsigned long ul;
};
class EventData {
public:
EventData(CString strEventCode, CString &strSessionId, int nFlowId = 0) {
this->Add(CString(_T("tp")), strEventCode);
this->Add(CString(_T("ss")), strSessionId);
this->Add(CString(_T("ts")), (int)std::time(0));
if (nFlowId != 0)
this->Add(CString(_T("fl")), nFlowId);
}
template <typename T>
void Add(CString name, T value) {
EventDataValue event_value(value);
if (cMap.Lookup(name, NULL) == TRUE)
return;
cMap[name] = value;
}
CMap<CString, CString, EventDataValue, EventDataValue> cMap;
};
class Events {
public:
Events() { }
~Events() { }
void Add(EventData ev) {
this->aEvents.Add(ev);
}
CStringW Serialize() {
CStringW strOutput;
INT_PTR i, j;
if (_tcscmp(API_FORMAT, FORMAT_JSON) == 0) {
for (i = 0; i != this->aEvents.GetCount(); i++) {
EventData ev = this->aEvents[i];
strOutput += L"{";
j = 0;
POSITION pos = ev.cMap.GetStartPosition();
while (pos != NULL) {
CString key;
EventDataValue value;
ev.cMap.GetNextAssoc( pos, key, value );
strOutput += StringFormat(_T("\"%s\": "), key.GetString());
if (value.Type == EventDataValue::STRING) {
CString str = value;
strOutput += Enquoute(str);
} else if (value.Type == EventDataValue::INT) {
int n = value;
strOutput += StringFormat(_T("%d"), n);
} else if (value.Type == EventDataValue::DOUBLE) {
double d = value;
strOutput += StringFormat(_T("%d"), static_cast<int>(d));
} else if (value.Type == EventDataValue::ULONG) {
ULONG ul = value;
strOutput += StringFormat(_T("%u"), ul);
}
if (j++ < ev.cMap.GetCount() - 1)
strOutput += _T(",");
}
strOutput += _T("}");
}
} else {
for (i = 0; i != this->aEvents.GetCount(); i++) {
EventData ev = this->aEvents[i];
strOutput += _T("<Event>");
j = 0;
POSITION pos = ev.cMap.GetStartPosition();
while (pos != NULL) {
CString key;
EventDataValue value;
ev.cMap.GetNextAssoc( pos, key, value );
strOutput += StringFormat(_T("<%s>"), key.GetString());
if (value.Type == EventDataValue::STRING) {
CString str = value;
strOutput += str;
} else if (value.Type == EventDataValue::INT) {
int n = value;
strOutput += StringFormat(_T("%d"), n);
} else if (value.Type == EventDataValue::DOUBLE) {
double d = value;
strOutput += StringFormat(_T("%d"), static_cast<int>(d));
} else if (value.Type == EventDataValue::ULONG) {
ULONG ul = value;
strOutput += StringFormat(_T("%u"), ul);
}
strOutput += StringFormat(_T("</%s>"), key.GetString());
}
strOutput += _T("</Event>");
}
}
return strOutput;
}
CArray<EventData> aEvents;
};
有人能告诉我为什么我在编译时出现以下错误吗?
Can someone please tell me why I am getting the following error when I try to compile this?
1>c:\program files (x86)\microsoft visual studio 11.0\vc\atlmfc\include\afxtempl.h(1329): error C2248: 'CObject::CObject' : cannot access private member declared in class 'CObject'
1> c:\program files (x86)\microsoft visual studio 11.0\vc\atlmfc\include\afx.h(559) : see declaration of 'CObject::CObject'
1> c:\program files (x86)\microsoft visual studio 11.0\vc\atlmfc\include\afx.h(534) : see declaration of 'CObject'
1> This diagnostic occurred in the compiler generated function 'CMap<KEY,ARG_KEY,VALUE,ARG_VALUE>::CMap(const CMap<KEY,ARG_KEY,VALUE,ARG_VALUE> &)'
1> with
1> [
1> KEY=CString,
1> ARG_KEY=CString,
1> VALUE=EventDataValue,
1> ARG_VALUE=EventDataValue
1> ]
推荐答案
void Add(EventData ev) {
this->aEvents.Add(ev);
}
这必须是Add(EventData& ev).您的 EventData 类没有非默认的复制构造函数或复制赋值运算符，并且有一个不可复制的成员 (CMap).这使得 EventData 不可复制.所以你不能通过值传递它，因为这将不得不复制，你不能这样做，因为类是不可复制的.
This must be Add(EventData& ev). Your EventData class has no non-default copy constructor or copy assignment operator and has a member (CMap) that is non-copyable. This makes EventData non-copyable. So you can't pass it by value because that would have to make a copy, which you can't do since the class is non-copyable.
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