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# this sequence tests nil type management b:=nil; io.print(b);a:=23; io.print(a);a:= calc.int(nil); io.print(a);a:= calc.int(nil:int); io.print(a);a:= calc.int(13); io.print(a);a:= calc.int("23"); io.print(a);a:= calc.int(43.0:flt); io.print(a);a:= calc.int(63.0:dbl); io.print(a);a:= nil:int; io.print(a);c:= true; io.print(c);c:= calc.bit(nil); io.print(c);c:= calc.bit(nil:bit); io.print(c);c:= calc.bit(false); io.print(c);c:= calc.bit(1); io.print(c);c:= calc.bit("true"); io.print(c);c:= calc.bit(1.0:flt); io.print(c);c:= calc.bit(0.0:dbl); io.print(c);c:= nil:bit; io.print(c);d:= 3.14:flt; io.print(d);d:= calc.flt(nil); io.print(d);d:= calc.flt(nil:flt); io.print(c);d:= calc.flt(5); io.print(d);d:= calc.flt("7.14"); io.print(d);d:= nil:flt; io.print(d);e:= "hello"; io.print(e);e:= calc.str(nil); io.print(e);e:= calc.str("nil"); io.print(e);e:= nil:str; io.print(e);io.print(nil:str);f:= 'Z'; io.print(f);f:= calc.chr(nil); io.print(f);f:= calc.chr("X"); io.print(f);
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