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