C/C++ Compiler (cl.hlp) (Table of Contents; Topic list)
C4788
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     Compiler warning (level 1) C4788
 
     'identifier' identifier was truncated to 'number' characters
 
     Only the first 31 characters of an identifier are significant in
     C. In C++, the first 247 characters (after name decoration) are
     significant. The characters after the limit were truncated.
 
     This may mean that two identifiers that are different before
     truncation may have the same identifier name after truncation.
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