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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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