pub fn try_cast<A: NoUninit, B: CheckedBitPattern>(
    a: A,
) -> Result<B, CheckedCastError>Expand description
Try to cast A into B.
Note that for this particular type of cast, alignment isn’t a factor. The input value is semantically copied into the function and then returned to a new memory location which will have whatever the required alignment of the output type is.
§Failure
- If the types don’t have the same size this fails.
 - If 
acontains an invalid bit pattern forBthis fails.