delta/go-git.git/src/math/big/floatexample_test.go, branch dev.debug

crypto/cipher, math/big: fix example names

2016-08-16T14:36:32+00:00

Fixes (legit) vet warnings.
Fix some verb tenses while we're here.

Updates #11041

Change-Id: I27e995f55b38f4cf584e97a67b8545e8247e83d6
Reviewed-on: https://go-review.googlesource.com/27122
Run-TryBot: Josh Bleecher Snyder 
Reviewed-by: David Crawshaw

math/big: use more direct formatting in ExampleRoundingMode, cosmetic changes

2015-09-10T22:10:41+00:00

Change-Id: I3d37391af2089881a5bd4d8f3e5d434b279c272e
Reviewed-on: https://go-review.googlesource.com/14490
Reviewed-by: Chris Manghane

math/big: add example for RoundingMode

2015-09-10T19:58:29+00:00

Updates #11241

Change-Id: I0614c5a9a7a4c399ad5d664f36c70c3210911905
Reviewed-on: https://go-review.googlesource.com/14356
Reviewed-by: Robert Griesemer

math/big: implement fmt.Formatter-compatible (*Float).Format

2015-06-02T06:37:53+00:00

Change-Id: I22fdba8ecaecf4e9201b845e65d982cac09f254a
Reviewed-on: https://go-review.googlesource.com/10499
Reviewed-by: Alan Donovan

math/big: rename (Float).Format to (Float).Text

2015-05-29T17:10:54+00:00

This paves the way for a fmt-compatible (*Float).Format method.
A better name then Text is still desirable (suggestions welcome).

This is partly fixing issue #10938.

Change-Id: I59c20a8cee11f5dba059fe0f38b414fe75f2ab13
Reviewed-on: https://go-review.googlesource.com/10493
Reviewed-by: Alan Donovan

math/big: Always print exponent sign when using 'p' exponent for Floats.

2015-05-22T23:12:51+00:00

Float.Format supports the 'b' and 'p' format, both of which print
a binary ('p') exponent. The 'b' format always printed a sign ('+'
or '-') for the exponent; the 'p' format only printed a negative
sign for the exponent. This change makes the two consistent. It
also makes the 'p' format easier to read if the exponent is >= 0.

Also:
- Comments added elsewhere.

Change-Id: Ifd2e01bdafb3043345972ca22a90248d055bd29b
Reviewed-on: https://go-review.googlesource.com/10359
Reviewed-by: Alan Donovan

math/big: remove NaN support - just not worth it

2015-03-31T23:05:31+00:00

NaNs make the API more complicated for no real good reasons.
There are few operations that produce NaNs with IEEE arithmetic,
there's no need to copy the behavior. It's easy to test for these
scenarios and avoid them (on the other hand, it's not easy to test
for overflow or underflow, so we want to keep +/-Inf).

Also:
- renamed IsNeg -> Signbit (clearer, especially for x == -0)
- removed IsZero           (Sign() == 0 is sufficient and efficient)
- removed IsFinite         (now same as !IsInf)

Change-Id: I3f3b4445c325d9bbb1bf46ce2e298a6aeb498e07
Reviewed-on: https://go-review.googlesource.com/8280
Reviewed-by: Alan Donovan

math/big: wrap Float.Cmp result in struct to prevent wrong use

2015-03-14T00:48:53+00:00

Float.Cmp used to return a value < 0, 0, or > 0 depending on how
arguments x, y compared against each other. With the possibility
of NaNs, the result was changed into an Accuracy (to include Undef).
Consequently, Float.Cmp results could still be compared for (in-)
equality with 0, but comparing if < 0 or > 0 would provide the
wrong answer w/o any obvious notice by the compiler.

This change wraps Float.Cmp results into a struct and accessors
are used to access the desired result. This prevents incorrect
use.

Change-Id: I34e6a6c1859251ec99b5cf953e82542025ace56f
Reviewed-on: https://go-review.googlesource.com/7526
Reviewed-by: Rob Pike

math/big: handle NaNs in Float.Cmp

2015-03-12T18:56:25+00:00

Also:
- Implemented NewFloat convenience factory function (analogous to
  NewInt and NewRat).
- Implemented convenience accessors for Accuracy values returned
  from Float.Cmp.
- Added test and example.

Change-Id: I985bb4f86e6def222d4b2505417250d29a39c60e
Reviewed-on: https://go-review.googlesource.com/6970
Reviewed-by: Alan Donovan

math/big: use stringer for enum String() methods

2015-03-04T18:24:34+00:00

Change-Id: Ide0615542d67b7d81bf6c56aab550e142a8789f7
Reviewed-on: https://go-review.googlesource.com/6682
Reviewed-by: Alan Donovan