PK86630: QUALIFIER NOT DEFINED IN THE CURRENT SCOPE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The following test cases generate error messages about "the
  qualifier ... is not defined in the current scope" with the V1r9
  and V1R10 compilers.
  
  
  ====TEST CASE 1
  
  // small testcase 1
  
  // 3770
  template <class Node>
  struct redblack_tree
  {
     // 3774
     typedef Node node_type;
  
     // 3787 error
     void DeleteNode( const unsigned& key ) { delete
  RemoveNode(key); }
  
     // 3790
     node_type* RemoveNode( const unsigned& key );
  
  };
  
  // 4282
  struct FreeBlock
  {
     // 4286
     void operator delete( void* );
  
  };
  
  int main(void)
  {
     redblack_tree<FreeBlock> test;
     test.DeleteNode(1);
     return 0;
  }
  
  This should compile clean but gets:
  
  "b.cpp", line 11.45: 1540-0129 (S) The qualifier "FreeBlock" is
  not defined in the current scope.
  "b.cpp", line 11.9: 1540-0700 (I) The previous message was
  produced while processing
  "redblack_tree<FreeBlock>::DeleteNode(const unsigned int &)".
  "b.cpp", line 29.8: 1540-0700 (I) The previous message was
  produced while processing "main()".
  
  
  ==== TEST CASE 2
  
  
  // small testcase 2
  
  // 4010
  template<class T, class Parent>
  struct double_linked_list_element : public Parent
  {
  
      // 4021
      virtual ~double_linked_list_element()
      {
         // 4024
         Remove();
      }
      // 4064
      void Remove(void) {  }
  
  };
  
  // 4152
  struct CBIBClientBase
  {
  //   void* operator new( size_t size ) ; //{ return
  malloc(size); }
     void operator delete( void* p ) ;// { free(p); }
  //   void* operator new[] ( size_t size ) ;//{ return
  malloc(size); }
     void operator delete[] ( void* p );// { free(p); }
  };
  
  
  // 4168
  struct CBIBClientBasePMT : public CBIBClientBase
  {
  //   void* operator new[] ( size_t );
  };
  
  int main(void)
  {
     double_linked_list_element<int,CBIBClientBasePMT> test;
     return 0;
  }
  
  
  This should compile clean but gets
  
  "c.cpp", line 13.5: 1540-0129 (S) The qualifier "CBIBClientBase"
  is not defined in the current scope.
  "c.cpp", line 9.13: 1540-0700 (I) The previous message was
  produced while processing
  "double_linked_list_element<int,CBIBClientBasePMT>::~double_link
  ed_list_element()".
  "c.cpp", line 5.8: 1540-0700 (I) The previous message was
  produced while processing "struct
  double_linked_list_element<int,CBIBClientBasePMT>".
  "c.cpp", line 35.5: 1540-0700 (I) The previous message was
  produced while processing "main()".
  

Local fix

• Move the clase defining operator delete above the class calling
  it.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: The problem happens when a user-defined      *
  *                 operator delete is called in a template for  *
  *                 a class that is dependent on the template    *
  *                 parameter.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: The compiler is attempting to resolve   *
  *                      the qualified name of the call to       *
  *                      operator delete at the reference        *
  *                      location instead of the                 *
  *                      instantiation point.                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  WORKAROUND:
  The user could work around the problem by moving the
  user-defined operator delete or the class with such
  an operator above the definition of the template
  calling it.
  EXPECTED ERROR:
  The user would see an error complaining that a
  qualifier is undefined or not complete. Likely there
  is no obvious use of this qualifier at the location
  specified in the error.
  

Problem conclusion

• The compiler is no longer using the wrong location.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PK82205

• APAR is sysrouted TO one or more of the following:

  UK46621

Modules/Macros

•    CCNECICS CCNECWI  CCNEDSCT CCNEDWRT CCNED1A0
  CCNEFILT CCNEHIFC CCNEMDEP CCNEOPTP CCNEP    CCNEPP   CCNER
  CCNETBY  CCNMSGE  CCNMSGT
  

Fix information

• Fixed component name

  C/C++ FOR MVS

• Fixed component ID

  56551210A

Applicable component levels

• R750 PSY UK46621

     UP09/06/11 P F906

Fix is available

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