On 10.02.2011 10:29, canalpay wrote:
I am trying to write the web framework(but not to write, to gain experience.).
Maybe the framework can has got a MVC desing pattern. But first, the D2 is not
has got for the web library and I am decided write to library for web.
I am writed a function for
spir Wrote:
> But in your example the symbol a does not look like a constant, instead it
> the
> loop variable. Do, how does it work?
Magic.
No really, the best I can tell is that the compiler will try to run the foreach
loop at compile-time if there is something in the body that must be eva
Tomek S.:
> Static catch, yeah. But I'd be content with traits__(fails, expr, msg) which
> seems tractable.
Asking for new features in this newsgroup is not so useful. You may add it to
bugzilla...
Bye,
bearophile
I've managed to screw up the colon placement though, here's a quick fix:
import std.stdio;
import std.conv;
void staticAssert(alias exp, string message, string file = __FILE__,
int line = __LINE__)()
{
static if (!exp)
{
pragma(msg, file ~ "(" ~ to!string(line) ~ "): " ~
"staticAs
How's this?
import std.stdio;
import std.conv;
void staticAssert(alias exp, string message, string file = __FILE__,
int line = __LINE__)()
{
static if (!exp)
{
pragma(msg, file ~ ":(" ~ to!string(line) ~ ") " ~
"staticAssert: " ~ to!string(message));
assert(0);
}
}
v
bearophile napisał:
> > Is there a way to statically assert compilation of an expression failed
> > *with a certain message*? I want to check
> > my static asserts trip when they should.
>
> I have asked something like this a lot of time ago, but I don't know a way to
> do it. You are able to
On Thursday, February 10, 2011 16:12:01 Tomek Sowiński wrote:
> Is there a way to statically assert compilation of an expression failed
> *with a certain message*? I want to check my static asserts trip when they
> should.
You mean like
static assert(0, "We have a failure, Captain!");
If a stati
On 02/11/2011 01:02 AM, Ali Çehreli wrote:
I don't have answers to your other questions.
On 02/10/2011 03:25 PM, spir wrote:
unittest {
auto i = 1;
auto s = "i";
It works if you define s as:
enum s = "i";
writeln(mixin("i")); // compiler happy up to here --> "1"
writeln(mixin(s)); //
Tomek Sowiñski:
> Is there a way to statically assert compilation of an expression failed *with
> a certain message*? I want to check my static asserts trip when they should.
I have asked something like this a lot of time ago, but I don't know a way to
do it. You are able to statically assert t
Is there a way to statically assert compilation of an expression failed *with a
certain message*? I want to check my static asserts trip when they should.
--
Tomek
I don't have answers to your other questions.
On 02/10/2011 03:25 PM, spir wrote:
> unittest {
> auto i = 1;
> auto s = "i";
It works if you define s as:
enum s = "i";
> writeln(mixin("i")); // compiler happy up to here --> "1"
> writeln(mixin(s)); // compiler unhappy --> "Error: argument
On 02/10/2011 11:32 PM, Jesse Phillips wrote:
enum FileName : string {
> > file1 = "file1.ext",
> > file2 = "file2.ext"
> > }
> >
> > void main(string args[])
> > {
> >foreach(a; __traits(allMembers, FileName))
> >writeln(mixin("FileName." ~ a));
> > }
>
> Why
On 02/10/2011 07:43 PM, Stewart Gordon wrote:
On 10/02/2011 12:59, spir wrote:
Hello,
Implicite deref of struct pointers on member access works fine for data,
methods, even
special methods with language semantics like opEquals (see example below).
But I cannot have 'in' work with method opIn_r.
spir Wrote:
> On 02/10/2011 08:22 PM, Jesse Phillips wrote:
> > enum FileName : string {
> > file1 = "file1.ext",
> > file2 = "file2.ext"
> > }
> >
> > void main(string args[])
> > {
> > foreach(a; __traits(allMembers, FileName))
> > writeln(mixin("FileName." ~ a));
> > }
>
> Why t
On 02/10/2011 08:22 PM, Jesse Phillips wrote:
Nrgyzer Wrote:
Hey guys,
I'm trying to iterate over an enumeration which contains strings like
the this:
enum FileName : string {
file1 = "file1.ext",
file2 = "file2.ext"
}
I already found this article: http://lists.puremagic.com/pipermail/
digit
On Thu, 10 Feb 2011 14:45:14 -0500, Tomek Sowiński wrote:
Michel Fortin napisał:
> Thanks for doing this. Is it approved by Walter?
Depends on what you mean by "approved".
He commented once on the newsgroup after I posted an earlier version of
the patch, saying I should add tests for type d
Michel Fortin napisał:
> > Thanks for doing this. Is it approved by Walter?
>
> Depends on what you mean by "approved".
>
> He commented once on the newsgroup after I posted an earlier version of
> the patch, saying I should add tests for type deduction and some other
> stuff. This change hi
== Auszug aus Jesse Phillips (jessekphillip...@gmail.com)'s Artikel
> Nrgyzer Wrote:
> > Hey guys,
> >
> > I'm trying to iterate over an enumeration which contains strings
like
> > the this:
> >
> > enum FileName : string {
> > file1 = "file1.ext",
> > file2 = "file2.ext"
> > }
> >
> > I already fo
Nrgyzer Wrote:
> Hey guys,
>
> I'm trying to iterate over an enumeration which contains strings like
> the this:
>
> enum FileName : string {
> file1 = "file1.ext",
> file2 = "file2.ext"
> }
>
> I already found this article: http://lists.puremagic.com/pipermail/
> digitalmars-d/2007-July/021920
On Thu, 10 Feb 2011 12:04:28 -0500, spir wrote:
On 02/10/2011 02:51 PM, Steven Schveighoffer wrote:
On Thu, 10 Feb 2011 08:39:13 -0500, spir wrote:
On 02/09/2011 11:05 PM, Steven Schveighoffer wrote:
I don't think you want templates. What you want is a tagged union
(and a struct
is MUC
On 10/02/2011 12:59, spir wrote:
Hello,
Implicite deref of struct pointers on member access works fine for data,
methods, even
special methods with language semantics like opEquals (see example below).
But I cannot have 'in' work with method opIn_r. I get:
Error: rvalue of in expression must be
On 02/10/2011 02:39 PM, Steven Schveighoffer wrote:
On Thu, 10 Feb 2011 07:59:06 -0500, spir wrote:
Hello,
Implicite deref of struct pointers on member access works fine for data,
methods, even special methods with language semantics like opEquals (see
example below).
But I cannot have 'in' w
On 02/10/2011 02:51 PM, Steven Schveighoffer wrote:
On Thu, 10 Feb 2011 08:39:13 -0500, spir wrote:
On 02/09/2011 11:05 PM, Steven Schveighoffer wrote:
I don't think you want templates. What you want is a tagged union (and a struct
is MUCH better suited for this):
// untested!
struct Exam
Hey guys,
I'm trying to iterate over an enumeration which contains strings like
the this:
enum FileName : string {
file1 = "file1.ext",
file2 = "file2.ext"
}
I already found this article: http://lists.puremagic.com/pipermail/
digitalmars-d/2007-July/021920.html but it's an enum which contains
in
On Thu, 10 Feb 2011 11:38:40 -0500, spir wrote:
On 02/10/2011 01:38 PM, bearophile wrote:
Is a pair of similar staticDownCast(), staticUpCast() fit for Phobos?
But I have never needed upcast in D as of now. What are common use cases?
Aren't all upcasts static anyways?
-Steve
On 2/10/11, Lars T. Kyllingstad wrote:
>
> To read an entire file at once, you should use std.file.read(), or
> std.file.readText() if it's an UTF encoded text file.
I missed that method while browsing through the docs. Thanks.
>
> There are actually three modules for file handling, but I think
On 02/10/2011 01:38 PM, bearophile wrote:
Lars T. Kyllingstad:
Ok, bearophile's solution is better, because it has fewer casts.
And your solution was better because it's inside a function :-)
I forgot you can cast to void*. So here's an improved version, with some
template constraints to
== Auszug aus Steven Schveighoffer (schvei...@yahoo.com)'s Artikel
> On Thu, 10 Feb 2011 09:48:14 -0500, useo wrote:
> > I created a complete, new file with the following code:
> >
> > module example;
> >
> > void main(string[] args) {
> > Example!(void function()) myVar;
> > }
> >
> > class E
On Thu, 10 Feb 2011 09:48:14 -0500, useo wrote:
I created a complete, new file with the following code:
module example;
void main(string[] args) {
Example!(void function()) myVar;
}
class Example(T) if (is(T == delegate) || is(T == function)) {
}
And what I get is:
example.d(4): E
== Auszug aus useo (u...@start.bg)'s Artikel
> == Auszug aus Steven Schveighoffer (schvei...@yahoo.com)'s Artikel
> > On Thu, 10 Feb 2011 09:09:03 -0500, useo wrote:
> > > I implemented all I wanted and it works perfectly ;).
> > >
> > > But I'm using the "if (is(T == delegate) || is(T == function
== Auszug aus Steven Schveighoffer (schvei...@yahoo.com)'s Artikel
> On Thu, 10 Feb 2011 09:09:03 -0500, useo wrote:
> > I implemented all I wanted and it works perfectly ;).
> >
> > But I'm using the "if (is(T == delegate) || is(T == function))"-
> > statement in another class/template.
> >
> > c
On Thu, 10 Feb 2011 09:09:03 -0500, useo wrote:
I implemented all I wanted and it works perfectly ;).
But I'm using the "if (is(T == delegate) || is(T == function))"-
statement in another class/template.
class Example(T) if (is(T == delegate) || is(T == function)) {
...
}
Now, when I declare
I implemented all I wanted and it works perfectly ;).
But I'm using the "if (is(T == delegate) || is(T == function))"-
statement in another class/template.
class Example(T) if (is(T == delegate) || is(T == function)) {
...
}
Now, when I declare Example!(void function()) myVar; I always get:
Err
Sean Eskapp wrote:
>I'm having an unfortunate DSFML issue, where failing to free objects
>like Images or Sprites causes exceptions to eventually be thrown.
>Calling the built-in member dispose() causes access violations, so I
>assume it's not for programmer use.
>
>However, I need the resources to
Johannes Pfau wrote:
>Sean Eskapp wrote:
>>I'm having an unfortunate DSFML issue, where failing to free objects
>>like Images or Sprites causes exceptions to eventually be thrown.
>>Calling the built-in member dispose() causes access violations, so I
>>assume it's not for programmer use.
>>
>>Howev
On Thu, 10 Feb 2011 08:39:13 -0500, spir wrote:
On 02/09/2011 11:05 PM, Steven Schveighoffer wrote:
I don't think you want templates. What you want is a tagged union (and
a struct
is MUCH better suited for this):
// untested!
struct Example
{
private
{
bool isDelegate;
union
{
void funct
On Thu, 10 Feb 2011 07:59:06 -0500, spir wrote:
Hello,
Implicite deref of struct pointers on member access works fine for data,
methods, even special methods with language semantics like opEquals (see
example below).
But I cannot have 'in' work with method opIn_r. I get:
Error: rvalu
On 02/09/2011 11:05 PM, Steven Schveighoffer wrote:
On Wed, 09 Feb 2011 16:41:25 -0500, useo wrote:
== Auszug aus bearophile (bearophileh...@lycos.com)'s Artikel
useo:
> I just have a problem with my variables.
>
> For example... my class/template just looks like:
>
> class Example(T) if (is(
On Thu, 10 Feb 2011 08:02:08 -0500, d coder wrote:
Thanks Lars and Bearophile, I will give it a try.
I understand that static downcasting is dangerous. But there are
places where efficiency is paramount and you are sure that the casting
is safe. So I wholeheartedly second your proposal to have
On Thu, 10 Feb 2011 07:34:53 -0500, spir wrote:
On 02/09/2011 10:15 PM, Steven Schveighoffer wrote:
On Wed, 09 Feb 2011 15:58:13 -0500, bearophile
wrote:
Sean Eskapp:
so is there a way to invoke a GC cleanup in some way?
http://www.digitalmars.com/d/2.0/phobos/core_memory.html#minimiz
Thanks Lars and Bearophile, I will give it a try.
I understand that static downcasting is dangerous. But there are
places where efficiency is paramount and you are sure that the casting
is safe. So I wholeheartedly second your proposal to have the stuff in
phobos.
Regards
- Cherry
Hello,
Implicite deref of struct pointers on member access works fine for data,
methods, even special methods with language semantics like opEquals (see
example below).
But I cannot have 'in' work with method opIn_r. I get:
Error: rvalue of in expression must be an associative array, not S
Lars T. Kyllingstad:
> Ok, bearophile's solution is better, because it has fewer casts.
And your solution was better because it's inside a function :-)
> I forgot you can cast to void*. So here's an improved version, with some
> template constraints to make sure it's only used for class types
On 02/09/2011 10:15 PM, Steven Schveighoffer wrote:
On Wed, 09 Feb 2011 15:58:13 -0500, bearophile wrote:
Sean Eskapp:
so is there a way to invoke a GC cleanup in some way?
http://www.digitalmars.com/d/2.0/phobos/core_memory.html#minimize
This attempts to minimize memory, it does not run
On Thu, 10 Feb 2011 11:54:02 +, Lars T. Kyllingstad wrote:
> On Thu, 10 Feb 2011 16:44:12 +0530, d coder wrote:
>
>> Greetings All
>>
>> I have learnt that D has only one casting operator and that is 'cast'.
>> The same operator assumes different functionality depending on the
>> context in
d coder:
> I have learnt that D has only one casting operator and that is 'cast'.
> The same operator assumes different functionality depending on the
> context in which it he being used.
Walter likes this design, I presume he thinks it's simpler.
> Now I have a situation where I have to downca
On Thu, 10 Feb 2011 16:44:12 +0530, d coder wrote:
> Greetings All
>
> I have learnt that D has only one casting operator and that is 'cast'.
> The same operator assumes different functionality depending on the
> context in which it he being used.
>
> Now I have a situation where I have to downc
Greetings All
I have learnt that D has only one casting operator and that is 'cast'.
The same operator assumes different functionality depending on the
context in which it he being used.
Now I have a situation where I have to downcast an object and I am
sure of the objects type and thereby I am s
On Thu, 10 Feb 2011 04:29:21 -0500, canalpay wrote:
> I am trying to write the web framework(but not to write, to gain
> experience.). Maybe the framework can has got a MVC desing pattern. But
> first, the D2 is not has got for the web library and I am decided write
> to library for web.
>
> I a
I am trying to write the web framework(but not to write, to gain experience.).
Maybe the framework can has got a MVC desing pattern. But first, the D2 is not
has got for the web library and I am decided write to library for web.
I am writed a function for post and get methods. (I am not tried t
On Wed, 09 Feb 2011 23:01:47 -0500, Andrej Mitrovic wrote:
> I'm trying to use the std.md5.sum method. It takes as an argument a
> digest to output the hash to, and the second argument is plain data.
>
> So I'm trying to read an entire file at once. I thought about using
> rawRead, but I get a ru
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