I am learning SDL by following the lazyfoo SDL2 tuorials, I am
alos new to D so I have a question:
I the lazyfoo tutorials there are many functions that have a bool
success whiich gets set at various places when something goes
wrong to be returned afterwards.
http://lazyfoo.net/tutorials/SDL
On Sat, 23 Aug 2014 10:19:58 +
nikki via Digitalmars-d-learn wrote:
don't use '==' to check for nulls. the right way is:
if (foo is null) {}
if (bar !is null) {}
'==' transforms to opEquals call (see 'operator overloading') and 'is'
not.
as for 'best practice' question -- it depends of
Oops well writing the above post made me realise what to look for
: http://dlang.org/errors.html
;)
On Saturday, 23 August 2014 at 10:29:04 UTC, ketmar via
Digitalmars-d-learn wrote:
On Sat, 23 Aug 2014 10:19:58 +
nikki via Digitalmars-d-learn
wrote:
don't use '==' to check for nulls. the right way is:
if (foo is null) {}
if (bar !is null) {}
'==' transforms to opEquals call (see
nikki:
How would you write it?
I don't know how much idiomatic this is, but you can start
cleaning up the code:
- Renaming the function with something more clear;
- using a D enumeration for the various constants.
- I have used a "." before the module-level variables to denote
better they a
ketmar:
don't use '==' to check for nulls. the right way is:
if (foo is null) {}
if (bar !is null) {}
'==' transforms to opEquals call (see 'operator overloading')
and 'is' not.
I use "is" and "!is" for class references and == != for pointers.
But now I think you are right, and in D it
On Sat, 23 Aug 2014 10:53:03 +
bearophile via Digitalmars-d-learn
wrote:
> I use "is" and "!is" for class references and == != for pointers.
> But now I think you are right, and in D it's better to always use
> is and !is for both, to avoid present and future bugs (like when
> a pointer ge
On Saturday, 23 August 2014 at 10:19:59 UTC, nikki wrote:
I am learning SDL by following the lazyfoo SDL2 tuorials, I am
alos new to D so I have a question:
I the lazyfoo tutorials there are many functions that have a
bool success whiich gets set at various places when something
goes wrong to
How can i access values in DList?
I save different objects of type "Property" in my DList, but if i
want to access them this way:
this.properties[0].value.start
i get:
Error: no [] operator overload for type DList!(Property)
On Saturday, 23 August 2014 at 10:33:02 UTC, nikki wrote:
A good to know! thanks.
I'd still be interrested to see the idiomatic D version of that
function, what would that depend on ?
Honestly, I wouldn't change it much. If it didn't throw
exceptions before, then it probably would have troubl
On Saturday, 23 August 2014 at 11:07:23 UTC, ketmar via
Digitalmars-d-learn wrote:
and "foo is null" is nice to read. ;-)
Meh, looks like a guest from pascal or basic.
On Saturday, 23 August 2014 at 14:54:55 UTC, axwro wrote:
How can i access values in DList?
I save different objects of type "Property" in my DList, but if
i want to access them this way:
this.properties[0].value.start
i get:
Error: no [] operator overload for type DList!(Property)
On Sat, 23 Aug 2014 15:10:22 +
Kagamin via Digitalmars-d-learn
wrote:
> Meh, looks like a guest from pascal or basic.
so let's replace writeln() with %&^#$#%^& then. this looks like a
function name for Real Hackers.
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On Saturday, 23 August 2014 at 11:07:23 UTC, ketmar via
Digitalmars-d-learn wrote:
and "foo is null" is nice to read. ;-)
function bool init
begin
rem Initialization flag
bool success assign true;
rem Initialize SDL
if execute SDL_Init SDL_INIT_VIDEO lt 0
begin
exec
Hello,
I have a module which is completelly @nogc, and as such I'd like to just say
@nogc:
at the top of the file and be happy.
However, my unit tests for this same module do some GC allocation, so the
module fails to compile.
Is there a way to disable @nogc for the unit tests only? Would t
On Saturday, 23 August 2014 at 15:18:15 UTC, axwro wrote:
On Saturday, 23 August 2014 at 14:54:55 UTC, axwro wrote:
How can i access values in DList?
I save different objects of type "Property" in my DList, but
if i want to access them this way:
this.properties[0].value.start
i get:
Error:
On Saturday, 23 August 2014 at 15:26:02 UTC, Leandro Motta Barros
via Digitalmars-d-learn wrote:
Hello,
I have a module which is completelly @nogc, and as such I'd
like to just say
@nogc:
at the top of the file and be happy.
However, my unit tests for this same module do some GC
allocat
I have 2 reduced files, wich i can't compile with new (DMD 2.066)
rdmd.exe under Windows 7 32-bit.
Command: rdmd --force --build-only aaa.d
Message "Error 42: Symbol Undefined _D3etc3bbb3fooFZi"
But command: dmd aaa.d etc\bbb.d
Compile without errors.
And then i replace rdmd.exe by old (from DM
Thanks, this was helpful!
LMB
On Sat, Aug 23, 2014 at 1:22 PM, monarch_dodra via Digitalmars-d-learn <
digitalmars-d-learn@puremagic.com> wrote:
> On Saturday, 23 August 2014 at 15:26:02 UTC, Leandro Motta Barros via
> Digitalmars-d-learn wrote:
>
>> Hello,
>>
>> I have a module which is comple
On Saturday, 23 August 2014 at 16:28:46 UTC, novice2 wrote:
I have 2 reduced files, wich i can't compile with new (DMD
2.066) rdmd.exe under Windows 7 32-bit.
Command: rdmd --force --build-only aaa.d
Message "Error 42: Symbol Undefined _D3etc3bbb3fooFZi"
But command: dmd aaa.d etc\bbb.d
Compil
On Saturday, 23 August 2014 at 01:56:06 UTC, Dicebot wrote:
On Saturday, 23 August 2014 at 01:32:13 UTC, Meta wrote:
On Saturday, 23 August 2014 at 01:24:10 UTC, Meta wrote:
What is happening here? Are these two extra ulongs the
offsets of the fields in the struct?
And I just realized that th
On Saturday, 23 August 2014 at 16:28:46 UTC, novice2 wrote:
I have 2 reduced files, wich i can't compile with new (DMD
2.066) rdmd.exe under Windows 7 32-bit.
Command: rdmd --force --build-only aaa.d
Message "Error 42: Symbol Undefined _D3etc3bbb3fooFZi"
But command: dmd aaa.d etc\bbb.d
Compil
PR that introduced regression:
https://github.com/D-Programming-Language/tools/pull/108
On Saturday, 23 August 2014 at 16:28:46 UTC, novice2 wrote:
I have 2 reduced files, wich i can't compile with new (DMD
2.066) rdmd.exe under Windows 7 32-bit.
Command: rdmd --force --build-only aaa.d
Message "Error 42: Symbol Undefined _D3etc3bbb3fooFZi"
But command: dmd aaa.d etc\bbb.d
Compil
On Saturday, 23 August 2014 at 17:29:15 UTC, sigod wrote:
PR that introduced regression:
https://github.com/D-Programming-Language/tools/pull/108
Filed: https://issues.dlang.org/show_bug.cgi?id=13366
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir Panteleev
wrote:
No, it is not an rdmd bug.
"etc" is a standard D package name reserved for Phobos, the
standard library. It is the same for "std" and "core".
Please, point us directly to a documentation where it says that
this words rese
Today I just realized that in DMD optimize flag does not imply
inlining, therefore I promptly added the "inline" to my dub build
settings and recompiler, expecting to see speedups in my code
execution.
To my surprise, I could not see anything at all: all that I get
now is a blank screen.
The
On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir Panteleev
wrote:
No, it is not an rdmd bug.
"etc" is a standard D package name reserved for Phobos, the
standard library. It is the same for "std" and "core".
Please, point us dire
On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir Panteleev
wrote:
No, it is not an rdmd bug.
"etc" is a standard D package name reserved for Phobos, the
standard library. It is the same for "std" and "core".
Please, point us dire
Greetings.
I know that D1 will be deprecated pretty soon and I have a huge
project based on D1. I am trying to build everything using the
latest D1 build (1.076). I am looking into cleaning up a lot of
code for this project that uses, dbi, juno and dfl. I am finding
this error while compi
On Saturday, 23 August 2014 at 17:44:41 UTC, francesco cattoglio
wrote:
any suggestion on how to debug this?
If you can write a script which can compare the behavior of two
builds of your program to return 0 if they differ or 1 if they
are identical, you could plug it into DustMite. Write a t
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir Panteleev
wrote:
"etc" is a standard D package name reserved for Phobos, the
Thanks for explanation.
I not be able to undertsand the cause - weird error message.
Now i can easy fix my code.
BTW, did rdmd determine user code or standard libr
On Saturday, 23 August 2014 at 17:41:38 UTC, Dicebot wrote:
On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir
Panteleev wrote:
No, it is not an rdmd bug.
"etc" is a standard D package name reserved for Phobos, the
standard library.
On Saturday, 23 August 2014 at 18:23:25 UTC, sigod wrote:
Actually, I never got to use this names for first package name.
(I only used `.etc` and `.core`.) So, I
didn't thought about this.
`.etc` and `.core` should work fine. Only
the three top-level package names are reserved by rdmd for
Ph
On Saturday, 23 August 2014 at 18:23:25 UTC, sigod wrote:
Isn't it better to document such things?
Yes. Please create a pull request.
On Saturday, 23 August 2014 at 18:12:44 UTC, novice2 wrote:
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir Panteleev
wrote:
"etc" is a standard D package name reserved for Phobos, the
Thanks for explanation.
I not be able to undertsand the cause - weird error message.
Now i can easy fix
On Saturday, 23 August 2014 at 17:41:38 UTC, Dicebot wrote:
On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir
Panteleev wrote:
No, it is not an rdmd bug.
"etc" is a standard D package name reserved for Phobos, the
standard library.
On Saturday, 23 August 2014 at 18:41:58 UTC, Marc Schütz wrote:
On Saturday, 23 August 2014 at 17:41:38 UTC, Dicebot wrote:
On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
On Saturday, 23 August 2014 at 17:32:15 UTC, Vladimir
Panteleev wrote:
No, it is not an rdmd bug.
"etc" is a st
On Saturday, 23 August 2014 at 18:28:32 UTC, Vladimir Panteleev
wrote:
On Saturday, 23 August 2014 at 18:23:25 UTC, sigod wrote:
Isn't it better to document such things?
Yes. Please create a pull request.
Easy to say. In my TODO list lies record to create PR for [this
issue][0]. Today is ex
On Saturday, 23 August 2014 at 18:43:35 UTC, Vladimir Panteleev
wrote:
On Saturday, 23 August 2014 at 18:41:58 UTC, Marc Schütz wrote:
On Saturday, 23 August 2014 at 17:41:38 UTC, Dicebot wrote:
On Saturday, 23 August 2014 at 17:37:39 UTC, sigod wrote:
On Saturday, 23 August 2014 at 17:32:15 UT
On Saturday, 23 August 2014 at 18:55:08 UTC, Marc Schütz wrote:
But imported modules are the important case. If I have an
important bugfix in a module, and don't want to wait for the
next release, what am I supposed to do?
Rebuild Phobos. If rdmd were to compile your module, linking
would fai
On 08/23/2014 10:21 AM, Meta wrote:
On Saturday, 23 August 2014 at 01:56:06 UTC, Dicebot wrote:
On Saturday, 23 August 2014 at 01:32:13 UTC, Meta wrote:
On Saturday, 23 August 2014 at 01:24:10 UTC, Meta wrote:
What is happening here? Are these two extra ulongs the offsets of
the fields in the
On Saturday, 23 August 2014 at 20:34:35 UTC, Ali Çehreli wrote:
There are a number of inconsistencies around tuples. The
behavior you expect is present for ranges that return tuple
fronts:
import std.stdio;
import std.typecons;
import std.range;
void main()
{
auto t = [ tuple(1.5, 100), t
Will there be any binary releases of Dscanner?
I'm wondering because the maintainer of FlyCheck needs this for
official FlyCheck support for Dscanner.
For details see: https://github.com/flycheck/flycheck/pull/426
On Saturday, 23 August 2014 at 22:12:06 UTC, Nordlöw wrote:
I'm looking for a trait, say isCTExpression, that can check
I just say
http://forum.dlang.org/thread/mailman.1953.1373509028.13711.digitalmar...@puremagic.com
Is this still the preferred way to do it?
I'm looking for a trait, say isCTExpression, that can check
whether an alias parameter is an expression evaluable during
compile-time? Have anybody written such a thing?
On Saturday, 23 August 2014 at 22:14:34 UTC, Nordlöw wrote:
On Saturday, 23 August 2014 at 22:12:06 UTC, Nordlöw wrote:
As a complement I came up with
/** Check if the value of $(D expr) is known at compile-time.
See also:
http://forum.dlang.org/thread/owlwzvidwwpsrelpk...@forum.dlang.org
Compiling a simple program using std.regex:
import std.regex;
import std.stdio;
void main(string[] args) {
auto re = regex(args[1], "g");
foreach(line; stdin.byLine)
if(line.match(re))
writeln(line);
}
Renders a 1.6 megabyte binary. Is that normal?
Can't think off the top of my head how you do this
template IsTemplate(alias t) {
??
}
static assert(IsTemplate!IsTemplate)
Hi, I've been trying to reduce a bug in the containers (8824).
From the example below it seems the dup method is passing the
constructor
an array of dchars and the template is failing.
Is this a compiler bug, or ?
import std.range, std.traits;
struct Array2(T)
{
private T[] _payload;
On Sat, 23 Aug 2014 23:40:12 +
Bayan Rafeh via Digitalmars-d-learn
wrote:
> Renders a 1.6 megabyte binary. Is that normal?
yes. this binary includes statically linked runtime and phobos, plus
alot of template expansions. alas, template magic is not free.
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On Sat, 23 Aug 2014 23:40:12 +
Bayan Rafeh via Digitalmars-d-learn
wrote:
p.s. strip it. stripping debug info can significantly reduce binary
size. for your example:
unstripped elf: 1,674,653 bytes
stripped elf : 1,074,528 bytes
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On Sunday, 24 August 2014 at 03:14:33 UTC, ketmar via
Digitalmars-d-learn wrote:
yes. this binary includes statically linked runtime and phobos,
plus
alot of template expansions. alas, template magic is not free.
OTOH, on Linux latest LDC does far better job in eliminating dead
code than DMD:
On Sun, 24 Aug 2014 06:10:20 +
Artem Tarasov via Digitalmars-d-learn
wrote:
> OTOH, on Linux latest LDC does far better job in eliminating dead
> code than DMD:
does ldc uses shared runtime here? with
dmd -defaultlib=libphobos2.so test.d
i got 657,438 bytes (425,836 stripped).
seems tha
On Sunday, 24 August 2014 at 06:20:38 UTC, ketmar via
Digitalmars-d-learn wrote:
does ldc uses shared runtime here?
No, it doesn't:
$ ldd test
linux-vdso.so.1 (0x7fffce266000)
librt.so.1 => /usr/lib/librt.so.1 (0x7fc174193000)
libdl.so.2 => /usr/lib/libdl.so.2 (0
On Sun, 24 Aug 2014 06:36:01 +
Artem Tarasov via Digitalmars-d-learn
wrote:
> On Sunday, 24 August 2014 at 06:20:38 UTC, ketmar via
> Digitalmars-d-learn wrote:
> > does ldc uses shared runtime here?
> No, it doesn't:
hm. ldc rocks. ;-)
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