Windows error LNK1179 -

i compiled exe on windows vs 2005, c++ program link other libs of mine. compiled , doesn't error of lnk1170 comdat "

i can't understand happened , how solve problem.

thanks

there many issues concerning bug including:

• using of unnamed stuff (struct, class, namespace)
• instantiation of template parameter
• incremental linking
• ...

i experienced bug in situation this:

template < class inputiterator > id findorinsertsomething( const std::string & name, inputiterator begin, inputiterator end ) {     id out;     {         static std::string sql( calculatequerya() );         if (findsomething( sql, name, out ))             return out;     }      static std::string sql( calculatequeryb() );     out = insertsomehing( sql, name, begin, end );     return out; } 

when used in code, link error lnk1179 occurred. problem simple. without /h switch, maximum length of names can 2047 characters. when using template stuff, long names created. in example there 2 static variables same name. named like:

sql?something-like-function-signature?something-like-block-signature 

what can longer 2047 characters. because something-like-block-signature @ end, behind 2047 boundary, making both sql variables same linker.

solution easy:

• using different names
• hide optimization in function (will not calculated each version of template)