[Glass] PositionableStream atEnd

[Dale Henrichs via Glass]

Bruno,

The behavior of PositionableStream in GemStone is not compatible with 
other Smalltalk implementations, specifically in the way that position: 
is handled ...

If you want to be compatible with other Smalltalk implementations, use 
the *Portable stream classes:

--------------------
PositionableStreamPortable
  ReadStreamPortable
  WriteStreamPortable
   ReadWriteStreamPortable
    FileStreamPortable
TranscriptStreamPortable

Dale

On 12/26/16 3:09 PM, BrunoBB via Glass wrote:
> Hi All,
>
> After debugging a bug in my application i finally reached
> "PositionableStream atEnd".
>
> In Dolphin Smalltalk:
> stream := ReadStream on: #(1 2 3 4).
> stream position: 4.
> stream atEnd. "answer <true>" "Dolphin 7"
>
> In GemStone Smalltalk:
> stream := ReadStream on: #(1 2 3 4).
> stream position: 4.
> stream atEnd. "answer <false>" "GemStone 3.3.0"
>
> The GemStone behavior seems to be odd. Because atEnd is [false] then #next
> is possible. But there is no next.
> Which is the login behind this ? :)
>
> regards
> bruno
>
>
>
> --
> View this message in context: http://forum.world.st/PositionableStream-atEnd-tp4928156.html
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