From: tr.17687@z991.linuxsc.com   
      
   Keith Thompson  writes:   
      
   > "Paul Edwards"  writes:   
      
   [...]   
      
   >> And C90 (etc) could potentially be extended to include a folder.h   
   >   
   > C90 will never be extended.   
      
   The C90 edition of the ISO C standard will never be changed by   
   ISO.  The C90 language could be extended by some independent   
   party.   
      
   > It was made obsolete by C99, which was made obsolete by C11,   
   > which was made obsolete by C23. [...]   
      
   No, they aren't, and no, they weren't.  C90, both the language   
   and the document that defines it, are not obsolete, but still in   
   use.  The same applies to C99 and C11.   
      
   The ISO C standard doesn't say anything about making earlier   
   editions obsolete.  The language used in the ISO C standard is   
   that each edition cancels and replaces the previous edition as   
   being the current ISO C standard.  At any one time there is only   
   one ISO C standard.  But changing which edition corresponds to   
   the current ISO standard doesn't change the status of the earlier   
   documents, or of the language they describe.  And in particular,   
   because they are all still in use, they are not obsolete.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)