Why is this Golang code to convert a string to an integer failing?

Question

This should have been simple:

strconv.Atoi("1250000.0000")

This results in an error:

0 strconv.ParseInt: parsing "1250000.0000": invalid syntax

Any clues?

This doesn't look like an integer. What are you trying to do ? — Denys Séguret, Oct 09 '13 at 17:17
It already returned the error to you directly, `invalid syntax`. You are passing a floating point number to a function that expects to parse integers. — Hunter McMillen, Oct 09 '13 at 17:20

score 13 · Accepted Answer · answered Oct 09 '13 at 17:18

13

Atoi works only for strings that can be parsed as integers.

What you need is parseFloat

answered Oct 09 '13 at 17:18

Denys Séguret

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justinas · Answer 2 · 2013-10-09T18:55:36.100

1

What dystroy said is true, but keep in mind that floats are inprecise and you could get an incorrect answer that way. In your case you can simply split the string on the period and then use Atoi on that.

strconv.Atoi(strings.Split("1250000.0000", ".")[0])

edited Oct 09 '13 at 18:55

answered Oct 09 '13 at 17:59

justinas

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You're missing the `, "."` in the params to `strings.Split()` (and fixing that is less than six chars change, so StackOverflow won't accept the edit) – Phil P Oct 09 '13 at 18:37

Why is this Golang code to convert a string to an integer failing?

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