On Thursday, 7 May 2015 at 02:09:34 UTC, Freddy wrote:
It doesn't matter whether they are by value or by ref but by
value usually has performance increases(especially considering
you can by a value type by ref in D if you need to).
Yep, this is very much true, but on x86 the register size is
On Thu, 2015-05-07 at 07:36 -0700, Andrei Alexandrescu via Digitalmars-d
wrote:
[…]
Reference types don't compose nicely that way. In a language with valye
types, the juxtaposition of two items (value or reference) is a va;ue.
In Java, it's a reference (so you need to allocate a new object
java.lang.String
It is big problem in java. You have pointer to String object with
fields: hashCode and chars array (UTF-16). But every array is
object itself. So it is pointer to object again. There is pointer
compression option in x64 JVM (it uses 32 bits per pointer), but
in any way it is
On 5/7/15 12:29 PM, Russel Winder via Digitalmars-d wrote:
On Thu, 2015-05-07 at 07:36 -0700, Andrei Alexandrescu via Digitalmars-d
wrote:
[…]
Reference types don't compose nicely that way. In a language with valye
types, the juxtaposition of two items (value or reference) is a va;ue.
In Java,
On 5/7/15 4:15 AM, Dejan Lekic wrote:
On Tuesday, 5 May 2015 at 20:40:59 UTC, Luís Marques wrote:
Hi,
For a comparison with the Java language, I'm trying to come up with
some good examples of custom types that should be value types (but
that must be ref types in Java). I think the most obvious
On Tuesday, 5 May 2015 at 20:40:59 UTC, Luís Marques wrote:
Hi,
For a comparison with the Java language, I'm trying to come up
with some good examples of custom types that should be value
types (but that must be ref types in Java). I think the most
obvious ones are numeric types. So BigNum,
On Wed, 2015-05-06 at 02:07 +, deadalnix via Digitalmars-d wrote:
[…]
Let me tell you an actual war story of mine.
I think you need to date the story, and say with GC was being used.
We have this program that is computationally intensive written in
java. Somewhere in the core of the
On Wednesday, 6 May 2015 at 02:07:40 UTC, deadalnix wrote:
Problem is, all these entries needs to be value types (we are
in java)
Maybe you meant reference types here?
On Wednesday, 6 May 2015 at 09:20:50 UTC, Russel Winder wrote:
On Wed, 2015-05-06 at 02:07 +, deadalnix via Digitalmars-d
wrote:
[…]
Let me tell you an actual war story of mine.
I think you need to date the story, and say with GC was being
used.
It is relatively recent (a little
On Wed, 06 May 2015 16:54:46 +, Luís Marques wrote:
* Regular expressions - I have no idea what you have in mind for this
one; even after looking at std.regex...
I meant both patterns and matches/captures.
* Tokens - On the one hand, I think this could be an excellent example,
since it's
On Wednesday, 6 May 2015 at 18:28:28 UTC, Luís Marques wrote:
On Wednesday, 6 May 2015 at 18:05:57 UTC, deadalnix wrote:
Without going into the details, we had entries in a DB,
counting in the millions in the working set. Some of them
where hammered heavily, most of them were only needed an
On Wednesday, 6 May 2015 at 18:05:57 UTC, deadalnix wrote:
Without going into the details, we had entries in a DB,
counting in the millions in the working set. Some of them where
hammered heavily, most of them were only needed an handful of
time. Problem is, there was no way upfront to know
On Wednesday, 6 May 2015 at 02:07:40 UTC, deadalnix wrote:
Let me tell you an actual war story of mine.
We have this program that is computationally intensive written
in java. Somewhere in the core of the program, we have a LRU
cache, with some entries sticking in there, and most entry
On Wednesday, 6 May 2015 at 02:07:40 UTC, deadalnix wrote:
On Tuesday, 5 May 2015 at 20:40:59 UTC, Luís Marques wrote:
Hi,
For a comparison with the Java language, I'm trying to come up
with some good examples of custom types that should be value
types (but that must be ref types in Java). I
On Wednesday, 6 May 2015 at 17:01:05 UTC, Luís Marques wrote:
That's sounds like a great story! What kind of values were
you caching?
Without going into the details, we had entries in a DB, counting
in the millions in the working set. Some of them where hammered
heavily, most of them were
On Wednesday, 6 May 2015 at 08:50:19 UTC, Dominikus Dittes
Scherkl wrote:
On Wednesday, 6 May 2015 at 02:07:40 UTC, deadalnix wrote:
Problem is, all these entries needs to be value types (we are
in java)
Maybe you meant reference types here?
Yes, sorry for the confusion.
On Tuesday, 5 May 2015 at 21:04:22 UTC, Justin Whear wrote:
Dates, times, durations, regular expressions, tokens, lazy
generators,
digests, vectors, really any type that provides a
interpretation/behavior
wrapper around one or more trivially copyable types.
That's a very nice list, thank
On Tuesday, 5 May 2015 at 20:40:59 UTC, Luís Marques wrote:
Hi,
For a comparison with the Java language, I'm trying to come up
with some good examples of custom types that should be value
types (but that must be ref types in Java). I think the most
obvious ones are numeric types. So BigNum,
On Tuesday, 5 May 2015 at 20:40:59 UTC, Luís Marques wrote:
Hi,
For a comparison with the Java language, I'm trying to come up
with some good examples of custom types that should be value
types (but that must be ref types in Java). I think the most
obvious ones are numeric types. So BigNum,
Hi,
For a comparison with the Java language, I'm trying to come up
with some good examples of custom types that should be value
types (but that must be ref types in Java). I think the most
obvious ones are numeric types. So BigNum, MyNum, etc. are good
examples because programmers are used
On Tue, 05 May 2015 20:40:58 +, Luís Marques wrote:
could you come up with some type that would really benefit from being a
value type but that isn't numeric (or otherwise similar)?
Dates, times, durations, regular expressions, tokens, lazy generators,
digests, vectors, really any type
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