The type can be specified with one of char uchar short ushort int uint float double, or one of int8 uint8 int16 uint16 int32 uint32 float32 float64.
型はchar uchar short ushort int uint float doubleの内の一つ、もしくはint8 uint8 int16 uint16 int32 uint32 float32 float64の内の一つで指定できる。