| commit | bd6d84282a441a35b4629eaa958d3ce24d396a6f | [log] [tgz] |
|---|---|---|
| author | Martin Möhrmann <martisch@uos.de> | Sat Feb 27 14:37:10 2016 +0100 |
| committer | Rob Pike <r@golang.org> | Sun Mar 06 02:18:05 2016 +0000 |
| tree | da6356cbc6b10c793edf5f660469c73675c03a19 | |
| parent | 5763476f739ad4d6b122c2a7ae26a845ea020a7e [diff] |
fmt: refactor and unify float and complex formatting Removes specialized functions for each verb and float/complex size and replaces them with generic variants fmtFloat and fmtComplex similar to other generic fmt functions. Simplifies the complex formatting by relying on fmtFloat to handle the verb and default precision selection. Complex imaginary formatting does not need to clear the f.space flag because the set f.plus flag will force a sign instead of a space. Sets default precision for %b to -1 (same as %g and %G) since precision for %b has no affect in strconv.AppendFloat. Add more tests and group them a bit better. Use local copies of +Inf,-Inf and NaN instead of math package functions for testing. Saves around 8kb in the go binary. name old time/op new time/op delta SprintfFloat-2 200ns ± 4% 196ns ± 4% -1.55% (p=0.007 n=20+20) SprintfComplex-2 569ns ± 4% 570ns ± 3% ~ (p=0.804 n=20+20) Change-Id: I36d35dab6f835fc2bd2c042ac97705868eb2446f Reviewed-on: https://go-review.googlesource.com/20252 Reviewed-by: Rob Pike <r@golang.org> Run-TryBot: Rob Pike <r@golang.org>
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