You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: decimal.go
    path of file: ./repos/gotosocial/vendor/github.com/ugorji/go/codec
    
    the code of the file until where you have to start completion: // Copyright (c) 2012-2020 Ugorji Nwoke. All rights reserved.
// Use o
    
func noFrac64(fbits uint64) bool {
	if fbits == 0 {
		return true
	}

	exp := uint64(fbits>>52)&0x7FF - 1023 // uint(x>>shift)&mask - bias
	// clear top 12+e bits, the integer part; if the rest is 0, then no fraction.
	return exp < 52 && fbits<<(12+exp) == 0 // means there's no fractional part
}