var num = 1

proc `[]`(v: ptr int, index: float) =
    echo index

addr(num)[3.4]

#ERROR: Test.nim(6, 9) Error: type mismatch: got (int, float)
#	but expected one of:
#	Test.[](v: ptr int, index: float)
#	system.[](a: array[Idx, T], x: TSlice[Idx]): seq[T]
#	system.[](a: array[Idx, T], x: TSlice[int]): seq[T]
#	system.[](s: string, x: TSlice[int]): string
#	system.[](s: seq[T], x: TSlice[int]): seq[T]
#	> Process terminated with exit code 256