The change appears to have happened between 8.04 and 8.07:
j804/j64/windows: (base copath is ;:'z')
chk=. sdcheck_jsocket_ :. sdcheck_jsocket_
]&.chk 10060
|ETIMEDOUT: sdcheck_jsocket_
| ]&.chk 10060
j807/j64/windows: (base copath is ;:'z')
chk=: sdcheck_jsocket_ :. sdcheck_jsocket_
]&.chk 10060
|value error: sderror
| ]&.chk 10060
I don't know what cases you are thinking about where the implicit f. is useful
-- would an explicit f. by the caller of &. not solve it? In fact, looking at
the 8.07 release notes it appears to suggest using an explicit f. to remove
names and calculate the inverse immediately.
In my case, I often use constructs like the following and this change really
messes it up:
json_z_=: enc_pjson_ :. dec_pjson_
jsoni_z_=: json_z_^:_1
sort&.jsoni '{one:1,two:2,three:3}'
{
"one":1,
"three":3,
"two":2
}
/K
> Date: Tue, 1 Oct 2019 04:27:41 -0400
> From: Henry Rich <[email protected]>
> To: [email protected]
> Subject: Re: [Jbeta] system error
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I will think about this. Applying f. to v allows some inverses to be
> calculated that would not otherwise be possible. I have some ideas for
> a fix, but I won't put them in till I have thought it over.
>
> hhr
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