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Report From: Delphi-BCB/Compiler/C++/Front End/Templates    [ Add a report in this area ]  
Report #:  68555   Status: Withdrawn
Can't compile recursive struct with std::map member
Project:  C++Builder Build #:  Update 1
Version:    12.0 Submitted By:   Johnny Willemsen
Report Type:  Crash / Data loss / Total failure Date Reported:  11/4/2008 2:32:01 AM
Severity:    Critical / Show Stopper Last Updated: 11/4/2008 3:40:00 AM
Platform:    All platforms Internal Tracking #:  
Resolution: None  Resolved in Build: : None
Duplicate of:  None
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Description
Compile the code fragement in the steps part of this problem. You get the error below. This does compile with msvc8 and gcc without problems.

[BCC32 Error] utility(57): E2450 Undefined structure 'IdentifierTreeNode'
[BCC32 Error] xtree(36): E2450 Undefined structure 'std::pair<const std::string,IdentifierTreeNode>'
[BCC32 Error] xtree(53): E2029 'std::_Tree_nod<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' must be a previously defined class or struct
[BCC32 Error] xtree(75): E2029 'std::_Tree_ptr<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' must be a previously defined class or struct
[BCC32 Error] xtree(186): E2029 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' must be a previously defined class or struct
[BCC32 Error] xtree(115): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Node'
[BCC32 Error] xtree(116): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(119): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(120): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(137): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(142): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(147): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(152): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(157): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(162): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(167): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(215): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(336): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(342): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(373): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(980): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1071): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1091): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1168): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1185): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1190): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1210): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1217): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1224): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1229): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1234): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1254): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1288): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1312): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] xtree(1335): E2404 Dependent type qualifier 'std::_Tree_val<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' has no member type named '_Nodeptr'
[BCC32 Error] map(76): E2029 'std::_Tree<std::_Tmap_traits<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> >,0> >' must be a previously defined class or struct
[BCC32 Error] File1.cpp(22): E2450 Undefined structure 'std::map<std::string,IdentifierTreeNode,std::less<std::string>,std::allocator<std::pair<const std::string,IdentifierTreeNode> > >'
[BCC32 Error] File1.cpp(22): E2449 Size of 'map_' is unknown or zero
Steps to Reproduce:
//---------------------------------------------------------------------------

#pragma hdrstop

#include <tchar.h>
//---------------------------------------------------------------------------
#include <map>
#include <string>

struct IdentifierTreeNode

  {


typedef


std::map<std::string, IdentifierTreeNode>
        PrefixMap;

        IdentifierTreeNode&
        operator[] (char const* key)
        {
          return map_[key];
        }

        PrefixMap map_;
      };

int _tmain(int argc, _TCHAR* argv[])
{

return 0;
}
//---------------------------------------------------------------------------
Workarounds
None
Attachment
None
Comments

Johnny Willemsen at 11/4/2008 3:40:09 AM -
withdrawn because this is illegal

http://www.ddj.com/cpp/184403814

Johnny Willemsen at 3/13/2009 1:57:03 AM -
Ok, this is illegal, but CB2009 is the only compiler that has this restriction. Any possibilities to allow this code again?

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