Swift: generic power function as infix operator -

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below answer original question of how add power operator int numbers:

infix operator ^^ { associativity left precedence 160 } func ^^ (radix: int, power: int) -> int {     return int(pow(cgfloat(radix), cgfloat(power))) }

how 1 generalise works double, float, , int?

you cannot "generalize" it. have implement each type separately.

if in swift header, see that swift built-in operators such +. there no "general" + function; there 1 + function every numeric type.

thus:

infix operator ^^ { associativity left precedence 160 } func ^^ (radix: int, power: int) -> int {     return int(pow(cgfloat(radix), cgfloat(power))) } func ^^ (radix: double, power: double) -> double {     return double(pow(cgfloat(radix), cgfloat(power))) } // ... , on many types ...

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