classNumStris Allomorph isNum { }
NumStr is a dual value type, a subclass of both Allomorph, hence Str, and Num.
See Allomorph for further details.
my$num-str=<42.1e0>; say$num-str.^name; # OUTPUT: «NumStr» myNum$num=$num-str; # OK! myStr$str=$num-str; # OK! # ∈ operator cares about object identity say 42e10 ∈ <42e10 55 1>; # OUTPUT: «False»
Methods§
method new§
methodnew(Num$i,Str$s)
The constructor requires both the Num and the Str value, when constructing one directly the values can be whatever is required:
my$f=NumStr.new(42.1e0,"forty two and a bit"); say+$f; # OUTPUT: «42.1» say~$f; # OUTPUT: «"forty two and a bit"»
method Num§
methodNum
Returns the Num value of the NumStr.
method Numeric§
multimethodNumeric(NumStr:D: --> Num:D) multimethodNumeric(NumStr:U: --> Num:D)
The :D variant returns the numeric portion of the invocant. The :U variant issues a warning about using an uninitialized value in numeric context and then returns value 0e0.
method Real§
multimethodReal(NumStr:D: --> Num:D) multimethodReal(NumStr:U: --> Num:D)
The :D variant returns the numeric portion of the invocant. The :U variant issues a warning about using an uninitialized value in numeric context and then returns value 0e0.
Operators§
infix ===§
multi infix:<===>(NumStr:D $a, NumStr:D $b)
NumStr Value identity operator. Returns True if the Num values of $a and $b are identical and their Str values are also identical. Returns False otherwise.
Typegraph§
NumStr
