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     Compiler error C2086
 
     'identifier' : redefinition
 
     The given identifier was defined more than once, or a subsequent
     declaration differed from a previous one.
 
     The following examples generate this error:
 
          int a;
          char a;
          main()
          {
          }
 
          main()
          {
            int a;
            int a;
          }
 
     The following is an error in C++ but not in ANSI C:
 
          int a;
          int a;
          main()
          {
          }
                                    -♦-