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int_of_string fails on integers starting with a + #6649

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vicuna opened this issue Nov 7, 2014 · 3 comments
Closed

int_of_string fails on integers starting with a + #6649

vicuna opened this issue Nov 7, 2014 · 3 comments
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@vicuna
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vicuna commented Nov 7, 2014

Original bug ID: 6649
Reporter: berke.durak
Status: closed (set by @damiendoligez on 2016-03-21T16:14:02Z)
Resolution: fixed
Priority: low
Severity: minor
Version: 4.01.0
Target version: 4.03.0+dev / +beta1
Fixed in version: 4.03.0+dev / +beta1
Category: standard library
Related to: #5829 #6296
Monitored by: lelf @hcarty

Bug description

The documentation states:

"Raise Failure "int_of_string" if the given string is not a valid representation of an integer, or if the integer represented exceeds the range of integers representable in type int."

But starting an integer with a + is valid:

let x = +1;;

val x : int = 1

Steps to reproduce

int_of_string "+1";;

Exception: Failure "int_of_string".

Additional information

Scanf.sscanf "%d" accepts the +

@vicuna
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vicuna commented Dec 22, 2014

Comment author: @damiendoligez

Note that #5936 will probably remove the +1 syntax from the language.

Since scanf uses the underlying C implementation, it's less likely to be "fixed" in the same way.

@vicuna
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vicuna commented Feb 21, 2016

Comment author: chrismamo1

This seems to have bee resolved by #2613 ( #222 )

@vicuna
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vicuna commented Mar 21, 2016

Comment author: @damiendoligez

Indeed it was resolved by #222. Thanks.

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