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─────Run-Time Library───────────────────────────────────────────────────────
 
     The _memccpy and _fmemccpy functions copy 0 or more bytes of <src>
     to <dest>, halting when the character <c> has been copied or until
     <count> bytes have been copied, whichever comes first.
 
     The _fmemccpy function is a model-independent (large model) form
     of the _memccpy function and can be called from any point in any
     program.
 
     Return Value
 
     If the character <c> is copied, _memccpy and _fmemccpy return a
     pointer (or far pointer) to the byte in <dest> that immediately
     follows the character. If <c> is not copied, both return NULL.
                                    -♦-