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strconv: issues in strconv package #23347

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tgg-manish opened this issue Jan 5, 2018 · 4 comments
Closed

strconv: issues in strconv package #23347

tgg-manish opened this issue Jan 5, 2018 · 4 comments
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FrozenDueToAge WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.

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@tgg-manish
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package main

import (
"fmt"
"strconv"

)

func main() {

Count := 5.5
fmt.Println(strconv.FormatFloat(Count , 'f', 0, 64))
}
//=====================================================

for Count calue 6.5, 7.5
and see the result
@mvdan
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mvdan commented Jan 5, 2018

Please use the entire bug report template and provide a play.golang.org link.

@mvdan mvdan added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Jan 5, 2018
@ghost
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ghost commented Jan 5, 2018

I believe what @tgg-manish is reporting is that 5.5 rounds to 6, 6.5 rounds to 6, and 7.5 rounds to 8.

@tgg-manish
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tgg-manish commented Jan 5, 2018 via email

@dominikh
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dominikh commented Jan 5, 2018

This is working as intended and due to how IEEE 754 floating point numbers work. See #21714 for a related issue and http://floating-point-gui.de/ for an explanation.

@dominikh dominikh closed this as completed Jan 5, 2018
@mikioh mikioh changed the title issues in strconv package strconv: issues in strconv package Jan 7, 2018
@golang golang locked and limited conversation to collaborators Jan 7, 2019
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@dominikh @mvdan @gopherbot @tgg-manish