(try-to-read "1++i")
(try-to-read "1+i+i")
(try-to-read "1+e10000i")
+
+(pass-if "radix passed to number->string can't be zero"
+ (signals-error?
+ 'out-of-range
+ (number->string 10 0)))
+(pass-if "radix passed to number->string can't be one either"
+ (signals-error?
+ 'out-of-range
+ (number->string 10 1)))