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author | Tianon Gravi <admwiggin@gmail.com> | 2015-01-15 11:54:00 -0700 |
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committer | Tianon Gravi <admwiggin@gmail.com> | 2015-01-15 11:54:00 -0700 |
commit | f154da9e12608589e8d5f0508f908a0c3e88a1bb (patch) | |
tree | f8255d51e10c6f1e0ed69702200b966c9556a431 /src/pkg/math/dim.go | |
parent | 8d8329ed5dfb9622c82a9fbec6fd99a580f9c9f6 (diff) | |
download | golang-upstream/1.4.tar.gz |
Imported Upstream version 1.4upstream/1.4
Diffstat (limited to 'src/pkg/math/dim.go')
-rw-r--r-- | src/pkg/math/dim.go | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/src/pkg/math/dim.go b/src/pkg/math/dim.go deleted file mode 100644 index 1c634d415..000000000 --- a/src/pkg/math/dim.go +++ /dev/null @@ -1,72 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package math - -// Dim returns the maximum of x-y or 0. -// -// Special cases are: -// Dim(+Inf, +Inf) = NaN -// Dim(-Inf, -Inf) = NaN -// Dim(x, NaN) = Dim(NaN, x) = NaN -func Dim(x, y float64) float64 - -func dim(x, y float64) float64 { - return max(x-y, 0) -} - -// Max returns the larger of x or y. -// -// Special cases are: -// Max(x, +Inf) = Max(+Inf, x) = +Inf -// Max(x, NaN) = Max(NaN, x) = NaN -// Max(+0, ±0) = Max(±0, +0) = +0 -// Max(-0, -0) = -0 -func Max(x, y float64) float64 - -func max(x, y float64) float64 { - // special cases - switch { - case IsInf(x, 1) || IsInf(y, 1): - return Inf(1) - case IsNaN(x) || IsNaN(y): - return NaN() - case x == 0 && x == y: - if Signbit(x) { - return y - } - return x - } - if x > y { - return x - } - return y -} - -// Min returns the smaller of x or y. -// -// Special cases are: -// Min(x, -Inf) = Min(-Inf, x) = -Inf -// Min(x, NaN) = Min(NaN, x) = NaN -// Min(-0, ±0) = Min(±0, -0) = -0 -func Min(x, y float64) float64 - -func min(x, y float64) float64 { - // special cases - switch { - case IsInf(x, -1) || IsInf(y, -1): - return Inf(-1) - case IsNaN(x) || IsNaN(y): - return NaN() - case x == 0 && x == y: - if Signbit(x) { - return x - } - return y - } - if x < y { - return x - } - return y -} |