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math/big: trim trailing zeros before hex printing

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m was being resliced as the result of looking for the first
non zero word of the mantissa, however m was not used later
in printing.

Spotted by Gordon Klaus, https://groups.google.com/forum/#!topic/golang-nuts/MdDLbvOjb4o

Change-Id: Ifbebb51ea5e0d86cb8e0422eb184b8634639a733
Reviewed-on: https://go-review.googlesource.com/10604
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Dave Cheney 2015-06-02 13:08:59 +10:00 committed by Robert Griesemer
parent 0f6da8923f
commit d15597e1b2
1 changed files with 1 additions and 1 deletions
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2
src/math/big/ftoa.go
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@ -289,7 +289,7 @@ func (x *Float) fmtP(buf []byte) []byte {
m = m[i:]
buf = append(buf, "0x."...)
buf = append(buf, strings.TrimRight(x.mant.hexString(), "0")...)
buf = append(buf, strings.TrimRight(m.hexString(), "0")...)
buf = append(buf, 'p')
if x.exp >= 0 {
buf = append(buf, '+')