• C. Dunn (5/6) Aug 13 2007 Oh. Slices! I didn't think of that. It should be just as efficient too...
• Oskar Linde (4/7) Aug 13 2007 chars are initialized to 0xff
• Jarrett Billingsley (17/22) Aug 13 2007 There are a few ways to get that initialized to 0 in the struct, tho:
• Deewiant (5/26) Aug 13 2007 Ever since Issue 1268 was fixed in 1.017, you can just write:
• Jarrett Billingsley (3/5) Aug 14 2007 I always wished that that were possible, but never knew if it was legal ...
• Chris Nicholson-Sauls (15/25) Aug 14 2007 Oh it is, but there's no equivelant one-liner for dynamic arrays. Inste...
• Bill Baxter (4/36) Aug 14 2007 You gonna make that cashew available via dsss net any time soon? If not...
• Chris Nicholson-Sauls (5/43) Aug 14 2007 Well... I admit I don't actually use DSSS myself. (The shame, I know.)...
• Bill Baxter (11/57) Aug 14 2007 Well, I gave it a go, but cashew, seems to depend on mango. And "dsss
• kris (3/13) Aug 14 2007 fixed (thank you)
• Bill Baxter (5/19) Aug 14 2007 Did you check it in too? dsss net install mango still fails with the
• Chris Nicholson-Sauls (9/76) Aug 16 2007 Oh... my. (*dejected sigh*) No frets. The bits that are causing that ...
• Bill Baxter (39/115) Aug 16 2007 Sure. Well, currently my dsss.conf for cashew consists of exactly two
• Chris Nicholson-Sauls (9/65) Aug 16 2007 Ruby Gems also allows having multiple versions installed, although I've ...
• C. Dunn (2/9) Aug 14 2007 If I cannot tell the "new int[]" expression what the initializer should ...

C. Dunn <cdunn2001 gmail.com> writes:

Derek Parnell Wrote:
 You could try this simpler method ...

Oh. Slices!  I didn't think of that.  It should be just as efficient too, since
these slices will not copy the contents.

As for your follow-up, I thought that
  char abc[32];
would initialize abc to 32 zeroes automatically.  Am I wrong?

Oskar Linde <oskar.lindeREM OVEgmail.com> writes:

C. Dunn wrote:

 As for your follow-up, I thought that
   char abc[32];
 would initialize abc to 32 zeroes automatically.  Am I wrong?

chars are initialized to 0xff


-- 
Oskar

"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

"Oskar Linde" <oskar.lindeREM OVEgmail.com> wrote in message 
news:f9qcug$2sgj$1 digitalmars.com...
 C. Dunn wrote:

 As for your follow-up, I thought that
   char abc[32];
 would initialize abc to 32 zeroes automatically.  Am I wrong?

 chars are initialized to 0xff

There are a few ways to get that initialized to 0 in the struct, tho:

1) Just write the initializer in the struct.

struct S
{
    char[32] abc = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
}

Kind of ugly, but straightforward.

2) Typedef a zero-init char type.

typedef char zchar = 0;

struct S
{
    zchar[32] abc;
}

You then might run into annoyances when converting between char and zchar. 

Deewiant <deewiant.doesnotlike.spam gmail.com> writes:

Jarrett Billingsley wrote:
 "Oskar Linde" <oskar.lindeREM OVEgmail.com> wrote in message 
 news:f9qcug$2sgj$1 digitalmars.com...
 C. Dunn wrote:

 As for your follow-up, I thought that
   char abc[32];
 would initialize abc to 32 zeroes automatically.  Am I wrong?

 chars are initialized to 0xff

 
 There are a few ways to get that initialized to 0 in the struct, tho:
 
 1) Just write the initializer in the struct.
 
 struct S
 {
     char[32] abc = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
 }
 
 Kind of ugly, but straightforward.
 

Ever since Issue 1268 was fixed in 1.017, you can just write:

char[32] abc = 0;

-- 
Remove ".doesnotlike.spam" from the mail address.

"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

"Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

I always wished that that were possible, but never knew if it was legal :D 

Chris Nicholson-Sauls <ibisbasenji gmail.com> writes:

Jarrett Billingsley wrote:
 "Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
 news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

 
 I always wished that that were possible, but never knew if it was legal :D 
 
 

Oh it is, but there's no equivelant one-liner for dynamic arrays.  Instead you
have to:

auto var = new int[len];
var[] = 42;

Or using Cashew:

import cashew.utils.Array;
// ...
auto var = repeat(42, len);

Which is actually just a wrapper around the above example.  It'd be nice if
there were 
some way to specify an initializor for a dynamic array's elements in place,
that didn't 
rely on using a typedef.

typedef int _MyInt42 = 42;
auto var = cast(int[]) new _MyInt42[len];

o_O

-- Chris Nicholson-Sauls

Bill Baxter <dnewsgroup billbaxter.com> writes:

Chris Nicholson-Sauls wrote:
 Jarrett Billingsley wrote:
 "Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
 news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

 I always wished that that were possible, but never knew if it was 
 legal :D

 
 Oh it is, but there's no equivelant one-liner for dynamic arrays.  
 Instead you have to:
 
 auto var = new int[len];
 var[] = 42;
 
 Or using Cashew:
 
 import cashew.utils.Array;
 // ...
 auto var = repeat(42, len);
 
 Which is actually just a wrapper around the above example.  It'd be nice 
 if there were some way to specify an initializor for a dynamic array's 
 elements in place, that didn't rely on using a typedef.
 
 typedef int _MyInt42 = 42;
 auto var = cast(int[]) new _MyInt42[len];
 
 o_O

You gonna make that cashew available via dsss net any time soon?  If not 
you mind if I do it?

--bb

Chris Nicholson-Sauls <ibisbasenji gmail.com> writes:

Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:
 Jarrett Billingsley wrote:
 "Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
 news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

 I always wished that that were possible, but never knew if it was 
 legal :D

 Oh it is, but there's no equivelant one-liner for dynamic arrays.  
 Instead you have to:

 auto var = new int[len];
 var[] = 42;

 Or using Cashew:

 import cashew.utils.Array;
 // ...
 auto var = repeat(42, len);

 Which is actually just a wrapper around the above example.  It'd be 
 nice if there were some way to specify an initializor for a dynamic 
 array's elements in place, that didn't rely on using a typedef.

 typedef int _MyInt42 = 42;
 auto var = cast(int[]) new _MyInt42[len];

 o_O

 
 You gonna make that cashew available via dsss net any time soon?  If not 
 you mind if I do it?
 
 --bb

Well...  I admit I don't actually use DSSS myself.  (The shame, I know.)  So if
you want 
to do so, go ahead.  I have a long list of to-do items for Cashew... should
really get to 
work on it.  (Like adding those nifty binutils.)

-- Chris Nicholson-Sauls

Bill Baxter <dnewsgroup billbaxter.com> writes:

Chris Nicholson-Sauls wrote:
 Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:
 Jarrett Billingsley wrote:
 "Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
 news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

 I always wished that that were possible, but never knew if it was 
 legal :D

 Oh it is, but there's no equivelant one-liner for dynamic arrays.  
 Instead you have to:

 auto var = new int[len];
 var[] = 42;

 Or using Cashew:

 import cashew.utils.Array;
 // ...
 auto var = repeat(42, len);

 Which is actually just a wrapper around the above example.  It'd be 
 nice if there were some way to specify an initializor for a dynamic 
 array's elements in place, that didn't rely on using a typedef.

 typedef int _MyInt42 = 42;
 auto var = cast(int[]) new _MyInt42[len];

 o_O

 You gonna make that cashew available via dsss net any time soon?  If 
 not you mind if I do it?

 --bb

 
 Well...  I admit I don't actually use DSSS myself.  (The shame, I 
 know.)  So if you want to do so, go ahead.  I have a long list of to-do 
 items for Cashew... should really get to work on it.  (Like adding those 
 nifty binutils.)
 
 -- Chris Nicholson-Sauls


Well, I gave it a go, but cashew, seems to depend on mango.  And "dsss 
net install mango" is failing, so I guess I give up for now.

Here's the error:

mango\net\util\cache\model\ICache.d(15): module IMessage cannot read 
file 'mango\net\cluster\model\IMessage.d'

ICache.d has this:
private import mango.net.cluster.model.IMessage;

but there is no mango/net/cluster directory in the sources that dsss net 
is grabbing.




--bb

kris <foo bar.com> writes:

Bill Baxter wrote:
[snip]
 Well, I gave it a go, but cashew, seems to depend on mango.  And "dsss 
 net install mango" is failing, so I guess I give up for now.
 
 Here's the error:
 
 mango\net\util\cache\model\ICache.d(15): module IMessage cannot read 
 file 'mango\net\cluster\model\IMessage.d'
 
 ICache.d has this:
 private import mango.net.cluster.model.IMessage;

fixed (thank you)

Bill Baxter <dnewsgroup billbaxter.com> writes:

kris wrote:
 Bill Baxter wrote:
 [snip]
 Well, I gave it a go, but cashew, seems to depend on mango.  And "dsss 
 net install mango" is failing, so I guess I give up for now.

 Here's the error:

 mango\net\util\cache\model\ICache.d(15): module IMessage cannot read 
 file 'mango\net\cluster\model\IMessage.d'

 ICache.d has this:
 private import mango.net.cluster.model.IMessage;

 
 fixed (thank you)

Did you check it in too?  dsss net install mango still fails with the 
same error.  Here's the svn url its using:
    svn export http://svn.dsource.org/projects/mango/trunk


--bb

Chris Nicholson-Sauls <ibisbasenji gmail.com> writes:

Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:
 Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:
 Jarrett Billingsley wrote:
 "Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
 news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

 I always wished that that were possible, but never knew if it was 
 legal :D

 Oh it is, but there's no equivelant one-liner for dynamic arrays.  
 Instead you have to:

 auto var = new int[len];
 var[] = 42;

 Or using Cashew:

 import cashew.utils.Array;
 // ...
 auto var = repeat(42, len);

 Which is actually just a wrapper around the above example.  It'd be 
 nice if there were some way to specify an initializor for a dynamic 
 array's elements in place, that didn't rely on using a typedef.

 typedef int _MyInt42 = 42;
 auto var = cast(int[]) new _MyInt42[len];

 o_O

 You gonna make that cashew available via dsss net any time soon?  If 
 not you mind if I do it?

 --bb

 Well...  I admit I don't actually use DSSS myself.  (The shame, I 
 know.)  So if you want to do so, go ahead.  I have a long list of 
 to-do items for Cashew... should really get to work on it.  (Like 
 adding those nifty binutils.)

 -- Chris Nicholson-Sauls

 
 
 Well, I gave it a go, but cashew, seems to depend on mango.  And "dsss 
 net install mango" is failing, so I guess I give up for now.
 
 Here's the error:
 
 mango\net\util\cache\model\ICache.d(15): module IMessage cannot read 
 file 'mango\net\cluster\model\IMessage.d'
 
 ICache.d has this:
 private import mango.net.cluster.model.IMessage;
 
 but there is no mango/net/cluster directory in the sources that dsss net 
 is grabbing.
 
 
 
 
 --bb

Oh... my.  (*dejected sigh*)  No frets.  The bits that are causing that problem
are 
horridly out of date and mostly mildly incomplete.  Much of Cashew will be
getting 
re-written and/or updated soon.  I'll let you know when the Mango dependencies
have been 
cleaned out.

A question: when requesting, for example, Tango from 'dsss net' does it grab
the latest 
official release, or the current SVN snapshot?  If the latter, I may just go
ahead and try 
DSSS out and make Cashew ready myself.

-- Chris Nicholson-Sauls

Bill Baxter <dnewsgroup billbaxter.com> writes:

Chris Nicholson-Sauls wrote:
 Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:
 Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:
 Jarrett Billingsley wrote:
 "Deewiant" <deewiant.doesnotlike.spam gmail.com> wrote in message 
 news:f9rjbi$1sav$1 digitalmars.com...
 Ever since Issue 1268 was fixed in 1.017, you can just write:

 char[32] abc = 0;

 I always wished that that were possible, but never knew if it was 
 legal :D

 Oh it is, but there's no equivelant one-liner for dynamic arrays.  
 Instead you have to:

 auto var = new int[len];
 var[] = 42;

 Or using Cashew:

 import cashew.utils.Array;
 // ...
 auto var = repeat(42, len);

 Which is actually just a wrapper around the above example.  It'd be 
 nice if there were some way to specify an initializor for a dynamic 
 array's elements in place, that didn't rely on using a typedef.

 typedef int _MyInt42 = 42;
 auto var = cast(int[]) new _MyInt42[len];

 o_O

 You gonna make that cashew available via dsss net any time soon?  If 
 not you mind if I do it?

 --bb

 Well...  I admit I don't actually use DSSS myself.  (The shame, I 
 know.)  So if you want to do so, go ahead.  I have a long list of 
 to-do items for Cashew... should really get to work on it.  (Like 
 adding those nifty binutils.)

 -- Chris Nicholson-Sauls


 Well, I gave it a go, but cashew, seems to depend on mango.  And "dsss 
 net install mango" is failing, so I guess I give up for now.

 Here's the error:

 mango\net\util\cache\model\ICache.d(15): module IMessage cannot read 
 file 'mango\net\cluster\model\IMessage.d'

 ICache.d has this:
 private import mango.net.cluster.model.IMessage;

 but there is no mango/net/cluster directory in the sources that dsss 
 net is grabbing.




 --bb

 
 Oh... my.  (*dejected sigh*)  No frets.  The bits that are causing that 
 problem are horridly out of date and mostly mildly incomplete.  Much of 
 Cashew will be getting re-written and/or updated soon.  I'll let you 
 know when the Mango dependencies have been cleaned out.

Sure.  Well, currently my dsss.conf for cashew consists of exactly two 
lines:

---------dsss.conf---------
name = cashew
[cashew]
-------end dsss.conf-------

And mango's is only slightly longer:

---------dsss.conf---------
name = mango
[mango/icu]
[mango/net]
[mango/xml]
---------dsss.conf---------


If there are parts that are basically dead right now and shouldn't be 
included, then you can just add an 'exclude' line.  I.e. if you just 
want to leave out the mango-depending parts just make it e.g.:

---------dsss.conf---------
name = cashew
[cashew]
exclude = cashew/utils/Benchmark.d
-------end dsss.conf-------

 A question: when requesting, for example, Tango from 'dsss net' does it 
 grab the latest official release, or the current SVN snapshot?  If the 
 latter, I may just go ahead and try DSSS out and make Cashew ready myself.

I _think_ it grabs it from the latest SVN.  And then optionally applies 
a dsss compatibility patch to it.  If so then it should be pretty 
trivial to change dsss to grab a particular branch/tag from svn instead 
of the default branch.  Maybe it already has this capability?  I do 
think DSSS is going to have to confront the versioning issue soon, 
though.  There needs to be a way to ask for a specific version when 
using net install.  And maybe even a way to install more than one 
version of the same package.  The other package manager I'm familiar 
with (Python setuptools/eggs) handle both.  Basically instead of 
installing package foo into the "foo" directory, it installs it into a 
directory like "foo-{fooversion}-{pythonversion}.egg/foo", and then adds 
"foo-{fooversion}-{pythonversion}.egg" to a file that lists the current 
include path.  I think a similar scheme could work for dsss.  It lets 
you have more than one version of a package installed, but the order in 
that that master list of includes determines globally which version is 
active.

--bb

Chris Nicholson-Sauls <ibisbasenji gmail.com> writes:

Bill Baxter wrote:
 Chris Nicholson-Sauls wrote:

[snip]
 Oh... my.  (*dejected sigh*)  No frets.  The bits that are causing 
 that problem are horridly out of date and mostly mildly incomplete.  
 Much of Cashew will be getting re-written and/or updated soon.  I'll 
 let you know when the Mango dependencies have been cleaned out.

 
 Sure.  Well, currently my dsss.conf for cashew consists of exactly two 
 lines:
 
 ---------dsss.conf---------
 name = cashew
 [cashew]
 -------end dsss.conf-------
 
 And mango's is only slightly longer:
 
 ---------dsss.conf---------
 name = mango
 [mango/icu]
 [mango/net]
 [mango/xml]
 ---------dsss.conf---------
 
 
 If there are parts that are basically dead right now and shouldn't be 
 included, then you can just add an 'exclude' line.  I.e. if you just 
 want to leave out the mango-depending parts just make it e.g.:
 
 ---------dsss.conf---------
 name = cashew
 [cashew]
 exclude = cashew/utils/Benchmark.d
 -------end dsss.conf-------
 
 A question: when requesting, for example, Tango from 'dsss net' does 
 it grab the latest official release, or the current SVN snapshot?  If 
 the latter, I may just go ahead and try DSSS out and make Cashew ready 
 myself.

 
 I _think_ it grabs it from the latest SVN.  And then optionally applies 
 a dsss compatibility patch to it.  If so then it should be pretty 
 trivial to change dsss to grab a particular branch/tag from svn instead 
 of the default branch.  Maybe it already has this capability?  I do 
 think DSSS is going to have to confront the versioning issue soon, 
 though.  There needs to be a way to ask for a specific version when 
 using net install.  And maybe even a way to install more than one 
 version of the same package.  The other package manager I'm familiar 
 with (Python setuptools/eggs) handle both.  Basically instead of 
 installing package foo into the "foo" directory, it installs it into a 
 directory like "foo-{fooversion}-{pythonversion}.egg/foo", and then adds 
 "foo-{fooversion}-{pythonversion}.egg" to a file that lists the current 
 include path.  I think a similar scheme could work for dsss.  It lets 
 you have more than one version of a package installed, but the order in 
 that that master list of includes determines globally which version is 
 active.
 

Ruby Gems also allows having multiple versions installed, although I've never
looked into 
the details of how it keeps them.  Gem also has 'update' for generically
grabbing new 
versions of installed packages, and 'cleanup' for likewise uninstalling old
versions.  If 
and when DSSS adds support for multiple installations, something like these two
commands 
would be doubtless useful.  I've used them, for example, to test whether or not
a new 
version of a library breaks anything before I commit to updating it.

-- Chris Nicholson-Sauls

C. Dunn <cdunn2001 gmail.com> writes:

Chris Nicholson-Sauls Wrote:
 Ever since Issue 1268 was fixed in 1.017, you can just write:
 char[32] abc = 0;

 I always wished that that were possible, but never knew if it was legal :D 

 Oh it is, but there's no equivelant one-liner for dynamic arrays.  Instead you
have to:
 
 auto var = new int[len];
 var[] = 42;

If I cannot tell the "new int[]" expression what the initializer should be,
then I would rather it not initialize at all.  In the case above, it
initializes twice!