Commit 37cd1658 authored by Rémy Oudompheng's avatar Rémy Oudompheng Committed by Russ Cox
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strconv: implement fast path for rounding already short numbers. 

benchmark                   old ns/op   new ns/op   delta
BenchmarkFormatFloatDecimal      3765        1386    -63%

R=rsc
CC=golang-dev, remy
https://golang.org/cl/5494060
parent f0f6aa59
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