4.3BSD - /usr/src/new/icon/rt/defany.c

   1: #include "../h/rt.h"
   2: 
   3: /*
   4:  * defany(dp,def) - if dp is null, default to def.
   5:  */
   6: 
   7: defany(dp, def)
   8: struct descrip *dp, *def;
   9:    {
  10:    DeRef(*dp)
  11:    if (NULLDESC(*dp)) {
  12:       *dp = *def;
  13:       return 1;
  14:       }
  15:    return 0;
  16:    }

Defined functions