Description: These are similar to single operator operations, but this can be used with list of variables like here: 
      NEG a,b,c

    is the same as: 
      a:=-a
  b:=-b
  c:=-c
  • Syntax: 
      NEG a   // is the same as a:=-a
  NOT a   // is the same as a:=~a
  INC a   // is the same as ++a
  DEC a   // is the same as --a
  • Description of NEW:
    NEW calls function to allocate a chunk of memory, with size given as below, and writes pointer of this chunk to given variable. If allocation fails, "MEM" exception is raised. 
      DEF a:PTR TO obj,b=20,c=3,d:PTR TO DOUBLE

  NEW a
  // equals to IF (a:=AllocVec(SIZEOF_obj,MEMF_PUBLIC|MEMF_CLEAR))=NIL THEN Raise("MEM")

  NEW a[10]
  // equals to IF (a:=AllocVec(10*SIZEOF_obj,MEMF_PUBLIC|MEMF_CLEAR))=NIL THEN Raise("MEM")

  NEW a[b*c+2]
  // equals to IF (a:=AllocVec((b*c+2)*SIZEOF_obj,MEMF_PUBLIC|MEMF_CLEAR))=NIL THEN Raise("MEM")

  NEW d[10]
  // equals to IF (d:=AllocVec(10*SIZEOF_DOUBLE,MEMF_PUBLIC|MEMF_CLEAR))=NIL THEN Raise("MEM")

    you can also use list of allocations like: 
      NEW d[4],a[b]
  • Description of END:
    END must be used to deallocate a NEW allocated chunk of memory. 
      NEW d[4],a[b]
  ...
  END a,d