spf13 / spf13/cast

Unexpected results with padded strings

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#182 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Go
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Description

https://play.golang.com/p/3oTZVLEkdas

package main

import (
	"fmt"
	"github.com/spf13/cast"
)

func main() {
	x := cast.ToInt("08")
	fmt.Printf("08 => %d\n", x)
	
	x = cast.ToInt("8")
	fmt.Printf("8 => %d\n", x)
}

I'd expect the result to be 8 in each scenario. However, "08" ends up hitting a path where the base is changed and the parsing returns an error that we don't see.

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the reported behavior with the Go example from the linked playground, starting at cast.ToInt("08") and comparing it with cast.ToInt("8"). Trace the string parsing path and verify that padded numeric strings return 8 without an unseen parsing error.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
tooling
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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