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/* A module of ASYNCx.LIB version 1.02 */ 
 
#include  
#include "asyncdef.h" 
 
/*************************************************** 
 Discard any data that may be in p's output buffer. 
***************************************************/ 
int a_oflush(register ASYNC *p) 
{if (p) 
  {disable(); 
   p->obufhead=p->obuftail=p->obuf; 
   enable(); 
   return 0; 
  } 
 else 
   return -1; 
} /* end of a_oflush(p) */