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| author | Robert Griesemer <gri@golang.org> | 2021-04-30 17:23:35 -0700 |
|---|---|---|
| committer | Robert Griesemer <gri@golang.org> | 2021-05-03 16:23:09 +0000 |
| commit | 7b768d43d0f0e3e734369496bb1caa409d4bd0bb (patch) | |
| tree | 035a54d8cc1481b8fc7ff3e1045fa3aa07eff088 /src/math | |
| parent | be1da9cdeecba15d0f68b4dcc145bcc77c0c4ace (diff) | |
| download | go-7b768d43d0f0e3e734369496bb1caa409d4bd0bb.tar.gz go-7b768d43d0f0e3e734369496bb1caa409d4bd0bb.zip | |
math: replace float32/64 extrema with exact expressions
Follow-up on https://golang.org/cl/315170.
Updates #44057.
Updates #44058.
Change-Id: I0b071e8ee7a1c97aae2436945cc9583cde3b40b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/315969
Trust: Robert Griesemer <gri@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Diffstat (limited to 'src/math')
| -rw-r--r-- | src/math/const.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/math/const.go b/src/math/const.go index 441b295ed4..31954b0cae 100644 --- a/src/math/const.go +++ b/src/math/const.go @@ -28,11 +28,11 @@ const ( // Max is the largest finite value representable by the type. // SmallestNonzero is the smallest positive, non-zero value representable by the type. const ( - MaxFloat32 = 3.40282346638528859811704183484516925440e+38 // 2**127 * (2**24 - 1) / 2**23 - SmallestNonzeroFloat32 = 1.401298464324817070923729583289916131280e-45 // 1 / 2**(127 - 1 + 23) + MaxFloat32 = 0x1p127 * (1 + (1 - 0x1p-23)) // 3.40282346638528859811704183484516925440e+38 + SmallestNonzeroFloat32 = 0x1p-126 * 0x1p-23 // 1.401298464324817070923729583289916131280e-45 - MaxFloat64 = 1.79769313486231570814527423731704356798070e+308 // 2**1023 * (2**53 - 1) / 2**52 - SmallestNonzeroFloat64 = 4.9406564584124654417656879286822137236505980e-324 // 1 / 2**(1023 - 1 + 52) + MaxFloat64 = 0x1p1023 * (1 + (1 - 0x1p-52)) // 1.79769313486231570814527423731704356798070e+308 + SmallestNonzeroFloat64 = 0x1p-1022 * 0x1p-52 // 4.9406564584124654417656879286822137236505980e-324 ) // Integer limit values. |