In below program, I'm getting below compilation errors
error C2621: member '_tag_nodes_::n ode_' of union '_tag_nodes_' has
copy constructor
error C2621: member '_tag_nodes_::l inkednode_' of union '_tag_nodes_'
has copy constructor
Can anybody help me resolve this or any workaround for this?
I must need union because in my data structure only one type of node
is possible at time. So I have taken union. And ya my data structure
is still very big but i posted a fraction part here to simplify the
problem.
#include "stdafx.h"
#include <stdio.h>
#include<iostre am>
#include<conio. h>
#include <list>
using namespace std;
typedef struct _tag_nodedata
{
std::string name;
std::string type;
}NODEDATAINFO;
typedef list<NODEDATAIN FONODEDATA;
typedef struct _tag_nodeinfo
{
void *_nodeptr;
string path_;
NODEDATA data_;
}NODEINFO;
typedef struct _tag_linkednode info
{
void *_nodeptr;
string linkpath_;
int queued;
int hidden;
}LINKEDNODEINFO ;
typedef union _tag_nodes_
{
NODEINFO nodeinfo_;
LINKEDNODEINFO linkednode_;
}NODES;
typedef struct _unrsolvednode_
{
NODES node;
int type;
}UNRESOLVED;
int _tmain(int argc, _TCHAR* argv[])
{
getch();
} 5 3868
Sujal wrote:
In below program, I'm getting below compilation errors
error C2621: member '_tag_nodes_::n ode_' of union '_tag_nodes_' has
copy constructor
error C2621: member '_tag_nodes_::l inkednode_' of union '_tag_nodes_'
has copy constructor
It's telling you can can't put something with a constructor or
destructor in a union.
>
typedef struct _tag_nodedata
You don't need the typedef in C++.
{
std::string name;
std::string type;
}NODEDATAINFO;
All caps for a class name is hideous!
>
int _tmain(int argc, _TCHAR* argv[])
Why not write
int main(int argc, char* argv[])
--
Ian Collins.
On Aug 14, 1:51*pm, Ian Collins <ian-n...@hotmail.co mwrote:
Sujal wrote:
In below program, I'm getting below compilation errors
error C2621: member '_tag_nodes_::n ode_' of union '_tag_nodes_' has
copy constructor
error C2621: member '_tag_nodes_::l inkednode_' of union '_tag_nodes_'
has copy constructor
It's telling you can can't put something with a constructor or
destructor in a union.
typedef struct _tag_nodedata
You don't need the typedef in C++.
{
std::string name;
std::string type;
}NODEDATAINFO;
All caps for a class name is hideous!
int _tmain(int argc, _TCHAR* argv[])
Why not write
int main(int argc, char* argv[])
--
Ian Collins.
Hi Ian,
Thanks for even replying..
I have read on internet on Microsoft site that we can put structure in
Union.
Please refer below link....for more information. http://msdn.microsoft.com/en-us/library/47azs69s.aspx
If I can't put structure type in union then i need to change my entire
data structure...
BTW, I have created temporary project so I haven't changed following
lines " int _tmain(int argc, _TCHAR* argv[])" while posting the
message.
thanks.
Sujal wrote:
[please don't quote signatures]
>
Hi Ian,
Thanks for even replying..
I have read on internet on Microsoft site that we can put structure in
Union.
You can, but the structure may not have a non-trivial constructor, copy
constructor or destructor. See 9.5.1 in the standard.
One of your structures contained std::strings, so they can't be a member
of a union.
--
Ian Collins.
On Aug 14, 2:33*pm, Ian Collins <ian-n...@hotmail.co mwrote:
Sujal wrote:
[please don't quote signatures]
Hi Ian,
Thanks for even replying..
I have read on internet on Microsoft site that we can put structure in
Union.
You can, but the structure may not have a non-trivial constructor, copy
constructor or destructor. *See 9.5.1 in the standard.
One of your structures contained std::strings, so they can't be a member
of a union.
--
Ian Collins.
Hi Ian,
Oh now I got your point. std::strings... . Thanks for that.
Can you please tell me where can I find 9.5.1 Standard. Can you please
share link for that?
Thanks in advance. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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