30 lines
1.3 KiB
Go
30 lines
1.3 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package math
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import "unsafe"
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// Float32bits returns the IEEE 754 binary representation of f,
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// with the sign bit of f and the result in the same bit position.
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// Float32bits(Float32frombits(x)) == x.
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func Float32bits(f float32) uint32 { return *(*uint32)(unsafe.Pointer(&f)) }
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// Float32frombits returns the floating-point number corresponding
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// to the IEEE 754 binary representation b, with the sign bit of b
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// and the result in the same bit position.
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// Float32frombits(Float32bits(x)) == x.
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func Float32frombits(b uint32) float32 { return *(*float32)(unsafe.Pointer(&b)) }
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// Float64bits returns the IEEE 754 binary representation of f,
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// with the sign bit of f and the result in the same bit position,
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// and Float64bits(Float64frombits(x)) == x.
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func Float64bits(f float64) uint64 { return *(*uint64)(unsafe.Pointer(&f)) }
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// Float64frombits returns the floating-point number corresponding
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// to the IEEE 754 binary representation b, with the sign bit of b
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// and the result in the same bit position.
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// Float64frombits(Float64bits(x)) == x.
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func Float64frombits(b uint64) float64 { return *(*float64)(unsafe.Pointer(&b)) }
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