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# Source file src/math/unsafe.go

## Documentation: math

```     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
5  package math
6
7  import "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.
12  func 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.
18  func 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.
23  func 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.
29  func Float64frombits(b uint64) float64 { return *(*float64)(unsafe.Pointer(&b)) }
30
```

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