In article <dap6di$2skm$1@digitaldaemon.com>, Andrew Fedoniouk says...
>
>"other languages don't have const"
>All languages of enterprise programming level (whatever it means)
>has concept of either immutable basic/builtin reference types (String,
>DateTime) with their immutabilty enforcement or have a concept of const.
>Either shalow or deep.
>
>From known to me languages, only VB has no such concept at all.
>

Visual Basic (VB) has a "Const" keyword that works well with Strings and primitive datatypes, and it also has a "ByVal" and "ByRef" for parameters passed into functions that works too. So, I'm not sure why you've fingered VB as a simple language with no concept of a constant non-changing value.

David L.

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"David L. Davis" <SpottedTiger@yahoo.com> wrote in message news:dapqn2$d0b$1@digitaldaemon.com...
> In article <dap6di$2skm$1@digitaldaemon.com>, Andrew Fedoniouk says...
>>
>>"other languages don't have const"
>>All languages of enterprise programming level (whatever it means)
>>has concept of either immutable basic/builtin reference types (String,
>>DateTime) with their immutabilty enforcement or have a concept of const.
>>Either shalow or deep.
>>
>>From known to me languages, only VB has no such concept at all.
>>
>
> Visual Basic (VB) has a "Const" keyword that works well with Strings and
> primitive datatypes, and it also has a "ByVal" and "ByRef" for parameters
> passed
> into functions that works too. So, I'm not sure why you've fingered VB as
> a
> simple language with no concept of a constant non-changing value.

Const keyword in VB plays pretty much the same role as in D except one thing - it supports String type also.

ByVal and ByRef is the same as 'in' and 'inout' in D except of
ByVal makes a copy of String values which is not so
realistic to use. ByVal String inside fucnction is not an
immutable value/reference.

Forgot to mention. I am speaking about the VB -
VB version 6 and not VB.NET as it is different language.

Andrew.