C/C++ Compiler (cl.hlp) (Table of Contents; Topic list)
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C1009
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     Fatal error C1009
 
     compiler limit : macros nested too deeply
 
     Too many macros were being expanded at the same time.
 
     This error occurs when a macro definition contains macros to be
     expanded and those macros contain other macros. The compiler has a
     limit of 256 levels of nested macros.
 
     Try to split the nested macros into simpler macros.
                                    -♦-