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Re: bug in is_numeric [message #181450 is a reply to message #181445]

Thu, 16 May 2013 22:45

Thomas 'PointedEars'
Messages: 701
Registered: October 2010

Karma:

Senior Member

SwissCheese wrote:

> On 05/15/2013 02:49 PM, Thomas 'PointedEars' Lahn wrote:
>> Christoph Becker wrote:
>>> Thomas 'PointedEars' Lahn wrote:
>>>> to the above it should have returned TRUE).
>>>
>>> I can confirm issues with is_numeric() wrt. strings in binary notation
>>> in PHP 5.4.7:
>>>
>>>> >> is_numeric('0b1010')
>>> false
>>>> >> is_numeric(0b1010)
>>> true
>>
>> ACK. However, it is unsurprising to me that the latter would return TRUE
>> because there the literal is parsed into an “int” value *before* it is
>> passed to is_numeric(), the equivalent of is_numeric(10).
>>
>> I would rather the former bug was an implementation bug instead of a
>> documentation bug, because such a function should either work for all
>> supported numeric representations of the programming language, or there
>> should be a parameter specifying which representations are supported for
>> the specific call [like ECMAScripts parseInt(number : String, base :
>> Number) : Number].
>
> Thomas,

This is NetNews, not e-mail.

> Looking into the source (PHP) there is no code to support binary
> strings of the type '0b1010101'. The code for hexadecimal is there
> however.

AISB, testing with PHP does not help to resolve the basic issue here. From
such tests it is still unclear whether not supporting the binary format is
an implementation bug, i. e. an omission of supporting the binary format
introduced with PHP 5.4; or a documentation bug, i. e. manual claiming that
is_numeric() supports more than it is actually supposed to.

What would be interesting instead is to look at the source code from which
PHP 5.4 and particularly is_numeric() is built as that could at least show
if the octal format would be recognized, and if there was support for the
binary format that was just not properly triggered.

> [Tests]

This was so unnecessary. We have already ascertained how the implementation
works or rather how it does not work. Learn to read for a change, will you?

PointedEars
--
When all you know is jQuery, every problem looks $(olvable).

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[Message index]

		bug in is_numeric By: fred on Sun, 12 May 2013 14:22
		Re: bug in is_numeric By: Salvatore on Sun, 12 May 2013 15:31
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 15:55
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 15:58
		Re: bug in is_numeric By: Thomas Mlynarczyk on Sun, 12 May 2013 16:06
		Re: bug in is_numeric By: Denis McMahon on Sun, 12 May 2013 16:24
		Re: bug in is_numeric By: fred on Sun, 12 May 2013 17:41
		Re: bug in is_numeric By: Erwin Moller on Mon, 13 May 2013 11:50
		Re: bug in is_numeric By: fred on Mon, 13 May 2013 13:58
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 14:11
		Re: bug in is_numeric By: fred on Mon, 13 May 2013 14:15
		Re: bug in is_numeric By: Erwin Moller on Mon, 13 May 2013 15:29
		Re: bug in is_numeric By: J.O. Aho on Mon, 13 May 2013 17:55
		Re: bug in is_numeric By: Richard Yates on Tue, 14 May 2013 13:41
		Re: bug in is_numeric By: SwissCheese on Wed, 15 May 2013 01:43
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 15 May 2013 03:01
		Re: bug in is_numeric By: SwissCheese on Wed, 15 May 2013 09:48
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 15 May 2013 10:11
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:36
		Re: bug in is_numeric By: Thomas 'PointedEars' on Wed, 15 May 2013 13:19
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 18:23
		Re: bug in is_numeric By: Thomas 'PointedEars' on Wed, 15 May 2013 18:49
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 19:58
		Re: bug in is_numeric By: Thomas 'PointedEars' on Wed, 15 May 2013 20:20
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 20:42
		Re: bug in is_numeric By: Thomas Mlynarczyk on Wed, 15 May 2013 21:53
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 22:29
		Re: bug in is_numeric By: Christoph Becker on Wed, 15 May 2013 22:40
		Re: bug in is_numeric By: Thomas 'PointedEars' on Thu, 16 May 2013 03:00
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:16
		Re: bug in is_numeric By: Thomas 'PointedEars' on Thu, 16 May 2013 22:45
		Re: bug in is_numeric By: SwissCheese on Fri, 17 May 2013 02:52
		Re: bug in is_numeric By: Thomas 'PointedEars' on Fri, 17 May 2013 16:33
		Re: bug in is_numeric By: Christoph Becker on Fri, 17 May 2013 18:39
		Re: bug in is_numeric By: Thomas 'PointedEars' on Fri, 17 May 2013 21:45
		Re: bug in is_numeric By: Christoph Becker on Sat, 18 May 2013 12:47
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 00:57
		Re: bug in is_numeric By: Jerry Stuckle on Thu, 16 May 2013 04:09
		Re: bug in is_numeric By: Christoph Becker on Thu, 16 May 2013 23:17
		Re: bug in is_numeric By: Jerry Stuckle on Fri, 17 May 2013 00:30
		Re: bug in is_numeric By: Christoph Becker on Sat, 18 May 2013 12:51
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 14:07
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 16:56
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 18:32
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 20:24
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 21:01
		Re: bug in is_numeric By: Denis McMahon on Sat, 18 May 2013 21:58
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 23:21
		Re: bug in is_numeric By: Denis McMahon on Sun, 19 May 2013 02:22
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 02:41
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:28
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:42
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:42
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:39
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 06:01
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 09:59
		Re: bug in is_numeric By: The Natural Philosoph on Sun, 19 May 2013 06:49
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:31
		Re: bug in is_numeric By: The Natural Philosoph on Sun, 19 May 2013 11:39
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:43
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:52
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:42
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 06:03
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 10:00
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:45
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:27
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:45
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:37
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:43
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 05:59
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 10:02
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 22:08
		Re: bug in is_numeric By: The Natural Philosoph on Sat, 18 May 2013 22:58
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 23:22
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 22:11
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 23:23
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:35
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 13:46
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:23
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 19 May 2013 18:44
		Re: bug in is_numeric By: Sanders Kaufman on Tue, 21 May 2013 05:54
		Re: bug in is_numeric By: Jerry Stuckle on Tue, 21 May 2013 10:03
		Re: bug in is_numeric By: fred on Thu, 23 May 2013 14:38
		Re: bug in is_numeric By: Arno Welzel on Sat, 01 June 2013 15:36
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 01 June 2013 18:54
		Re: bug in is_numeric By: Arno Welzel on Wed, 05 June 2013 13:25
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 05 June 2013 14:34
		Re: bug in is_numeric By: Arno Welzel on Wed, 05 June 2013 15:02
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 05 June 2013 16:30
		OT: What you say is not always what you mean (was: Re: bug in is_numeric) By: Arno Welzel on Wed, 05 June 2013 18:20
		Re: OT: What you say is not always what you mean By: Jerry Stuckle on Wed, 05 June 2013 18:40
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 19:51
		Re: bug in is_numeric By: Sanders Kaufman on Sat, 18 May 2013 22:13
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 22:49
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 10:24
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 19 May 2013 10:40
		Re: bug in is_numeric By: The Natural Philosoph on Sun, 19 May 2013 11:43
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 19 May 2013 16:29
		Re: bug in is_numeric By: Norman Peelman on Sat, 18 May 2013 18:53
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:41
		Re: bug in is_numeric By: Daniel Pitts on Mon, 13 May 2013 15:35
		Re: bug in is_numeric By: Denis McMahon on Mon, 13 May 2013 20:26
		Re: bug in is_numeric By: Denis McMahon on Mon, 13 May 2013 20:15
		Re: bug in is_numeric By: Robert Heller on Sun, 12 May 2013 18:03
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 16:03
		Re: bug in is_numeric By: fred on Sun, 12 May 2013 17:34
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 17:40
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 19:51
		Re: bug in is_numeric By: Sanders Kaufman on Sun, 12 May 2013 16:47
		Re: bug in is_numeric By: Luuk on Sun, 12 May 2013 16:56
		Re: bug in is_numeric By: Thomas Mlynarczyk on Sun, 12 May 2013 17:05
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 17:38
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 17:46
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 12 May 2013 18:11
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 18:39
		Re: bug in is_numeric By: Jerry Stuckle on Sun, 12 May 2013 20:51
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sun, 12 May 2013 23:27
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 00:35
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 09:07
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 13:02
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 14:57
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 15:10
		Re: bug in is_numeric By: Jerry Stuckle on Mon, 13 May 2013 17:52
		Re: bug in is_numeric By: Thomas 'PointedEars' on Mon, 13 May 2013 18:28
		Re: bug in is_numeric By: SwissCheese on Thu, 16 May 2013 22:28
		Re: bug in is_numeric By: Thomas 'PointedEars' on Thu, 16 May 2013 22:33
		Re: bug in is_numeric By: SwissCheese on Fri, 17 May 2013 02:34
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 08:28
		Re: bug in is_numeric By: Norman Peelman on Sat, 18 May 2013 12:00
		Re: bug in is_numeric By: Luuk on Sat, 18 May 2013 12:18
		Re: bug in is_numeric By: Tim Streater on Sat, 18 May 2013 12:20
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 12:47
		Re: bug in is_numeric By: The Natural Philosoph on Sat, 18 May 2013 13:05
		Re: bug in is_numeric By: Jerry Stuckle on Sat, 18 May 2013 14:16
		Re: bug in is_numeric By: Thomas 'PointedEars' on Sat, 18 May 2013 14:14
		Re: bug in is_numeric By: Sandman on Tue, 14 May 2013 08:34
		Re: bug in is_numeric By: fred on Tue, 14 May 2013 13:47
		Re: bug in is_numeric By: Denis McMahon on Tue, 14 May 2013 14:54
		Re: bug in is_numeric By: Sandman on Wed, 15 May 2013 06:05
		Re: bug in is_numeric By: Jerry Stuckle on Wed, 15 May 2013 10:27
		Re: bug in is_numeric By: Erwin Moller on Wed, 15 May 2013 11:11

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