1// Copyright 2009 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package math 6 7import "unsafe" 8 9// Float32bits returns the IEEE 754 binary representation of f, 10// with the sign bit of f and the result in the same bit position. 11// Float32bits(Float32frombits(x)) == x. 12func Float32bits(f float32) uint32 { return *(*uint32)(unsafe.Pointer(&f)) } 13 14// Float32frombits returns the floating-point number corresponding 15// to the IEEE 754 binary representation b, with the sign bit of b 16// and the result in the same bit position. 17// Float32frombits(Float32bits(x)) == x. 18func Float32frombits(b uint32) float32 { return *(*float32)(unsafe.Pointer(&b)) } 19 20// Float64bits returns the IEEE 754 binary representation of f, 21// with the sign bit of f and the result in the same bit position, 22// and Float64bits(Float64frombits(x)) == x. 23func Float64bits(f float64) uint64 { return *(*uint64)(unsafe.Pointer(&f)) } 24 25// Float64frombits returns the floating-point number corresponding 26// to the IEEE 754 binary representation b, with the sign bit of b 27// and the result in the same bit position. 28// Float64frombits(Float64bits(x)) == x. 29func Float64frombits(b uint64) float64 { return *(*float64)(unsafe.Pointer(&b)) } 30