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Date: Mon, 20 Feb 2006 22:14:26 +0100 (CET)
From: "Martin Sebor (JIRA)" <jira@apache.org>
To: stdcxx-dev@incubator.apache.org
Subject: [jira] Created: (STDCXX-152) error instantiating std::map on an
 incomplete type
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error instantiating std::map on an incomplete type
--------------------------------------------------

         Key: STDCXX-152
         URL: http://issues.apache.org/jira/browse/STDCXX-152
     Project: C++ Standard Library
        Type: Improvement
  Components: 23. Containers  
    Versions: 4.1.2, 4.1.3    
 Environment: all
    Reporter: Martin Sebor


>From http://mail-archives.apache.org/mod_mbox/incubator-stdcxx-user/200602.mbox/%3c20060215231134.6717.qmail@web82211.mail.mud.yahoo.com%3e:

  I am trying to use Boost built using stdcxx on Solaris. I was able to build the date_time
library but when I try to compile a test program I end up with errors related to incomplete
types. I have narrowed the issue to the following code
   
  #include <map>
#include <string>
  using namespace std;
  template <class T>
struct C {
     typedef multimap<T,C> maps;
     typedef typename maps::value_type value_type;
};
   
  int main () {
  C<std::string> c;
}

  When I compile using the default Sun CC libraries or rwtools7_std or stlport4, the code
compiles fine. But when I compile using stdcxx, I end up with the following errors.
   
  "/opt/idev3/dbapatla/apache-stdcxx-4.1.3/include/rw/_pair.h", line 55: Error: In this declaration
"second" is of an incomplete type "C<std::string>".
"/opt/idev3/dbapatla/apache-stdcxx-4.1.3/include/rw/_tree.h", line 86:     Where: While specializing
"std::pair<const std::string, C<std::string>>".
"/opt/idev3/dbapatla/apache-stdcxx-4.1.3/include/rw/_tree.h", line 86:     Where: Specialized
in __rw::__rw_rb_tree_node<std::allocator<std::pair<const std::string, C<std::string>>>,
std::pair<const std::string, C<std::string>>, std::string, __rw::__select1st<std::pair<const
std::string, C<std::string>>, std::string>>.
"/opt/idev3/dbapatla/apache-stdcxx-4.1.3/include/rw/_tree.h", line 259:     Where: Specialized
in __rw::__rb_tree<std::string, std::pair<const std::string, C<std::string>>,
__rw::__select1st<std::pair<const std::string, C<std::string>>, std::string>,
std::less<std::string>, std::allocator<std::pair<const std::string, C<std::string>>>>.
"/opt/idev3/dbapatla/apache-stdcxx-4.1.3/include/map", line 323:     Where: Specialized in
std::multimap<std::string, C<std::string>, std::less<std::string>, std::allocator<std::pair<const
std::string, C<std::string>>>>.
"test2.cpp", line 9:     Where: Specialized in C<std::string>.
"test2.cpp", line 13:     Where: Specialized in non-template code.
1 Error(s) detected.

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