On Tuesday, 10 February 2015 at 06:26:39 UTC, weaselcat wrote:
Is there currently an enhancement request open for this on the
bug tracker? I cannot find anything.
I couldn't find it either, so I filed it:
https://issues.dlang.org/show_bug.cgi?id=14168
On 2015-02-11 at 01:56, bearophile wrote:
Alternative solution closer to the F# code:
import std.stdio, std.algorithm, std.typecons;
int f(T)(T t) if (isTuple!T) {
return t.predSwitch(
tuple(0, 0, 0), 0,
tuple(0, 1, 1), 0,
tuple(1, 0, 1), 0,
tuple(1, 1,
On Tuesday, 10 February 2015 at 12:18:15 UTC, Vlasov Roman wrote:
On Tuesday, 10 February 2015 at 11:55:43 UTC, Daniel Kozák
wrote:
V Tue, 10 Feb 2015 11:44:09 +
Vlasov Roman via Digitalmars-d-learn
digitalmars-d-learn@puremagic.com napsáno:
On Tuesday, 10 February 2015 at 11:32:32 UTC,
On Tuesday, February 10, 2015 11:16:21 via Digitalmars-d-learn wrote:
On Monday, 9 February 2015 at 20:15:28 UTC, Jonathan M Davis
Why would it we even allow it? What benefit is there? It's
meaningless.
@disable this(); is for disabling the init property on structs.
Classes
themselves
On 2/10/15 12:15 PM, Jonathan M Davis via Digitalmars-d-learn wrote:
On Tuesday, February 10, 2015 11:16:21 via Digitalmars-d-learn wrote:
On Monday, 9 February 2015 at 20:15:28 UTC, Jonathan M Davis
Why would it we even allow it? What benefit is there? It's
meaningless.
@disable this(); is
On Tuesday, 10 February 2015 at 04:17:48 UTC, Dennis Ritchie
wrote:
I just need that code was only used features of the language
without using library functions. You may only use the function
sin().
Why is that?
Although D has a lot of language features, D tries to push
functionality into
Hi!
I get the following compile error (linux, dmd2.066.1):
test.d(13): Error: template test.testFunc cannot deduce function from
argument types !()(double[], double), candidates are:
test.d(3):test.testFunc(R)(R range, ElementType!R foo)
For the following test file:
import std.range:
Ali Çehreli wrote:
On 02/10/2015 12:31 AM, ted wrote:
ElementType!R testFunc(R)( R range, ElementType!R foo) //
compiles
with double foo
If think it is a little too much to ask from the template system of D. A
proper way of doing the same thing is to use a template constraint:
FG:
auto query = iota(2, 2 + 10)
.map!(c = [Length: 2 * c, Height: c * c - 1,
Hypotenuse: c * c + 1])
.map!(x = format(%4d%4d%4d, x[Height],
Unlike other languages like JavaScript, the D front-end is very
weak in optimizing well such kind of code... I think D compilers
handle
On Tuesday, 10 February 2015 at 08:40:38 UTC, Dennis Ritchie
wrote:
Because I was arguing with one quiet a stubborn person who does
not like D, on this forum:
http://www.cyberforum.ru/holywars/thread1367892-page13.html
He asked me to write such a program using only the language
features and
On 02/10/2015 12:31 AM, ted wrote:
ElementType!R testFunc(R)( R range, ElementType!R foo) // compiles with
double foo
If think it is a little too much to ask from the template system of D. A
proper way of doing the same thing is to use a template constraint:
ElementType!R testFunc(R,
ted:
Could someone enlighten me ?
This works:
import std.range: ElementType, isInputRange;
ElementType!R testFunc(R, T)(R range, T foo)
if (is(ElementType!R == T)) {
static assert(isInputRange!R);
typeof(return) retVal = foo ^^ 2; // More DRY.
return retVal;
}
void main() {
Ali Çehreli:
If think it is a little too much to ask from the template
system of D.
I remember hitting a similar problem with code like this bar()
function:
// OK
void foo(size_t N1, size_t N2)(int[N1] a, int[N2] b)
if (N2 == N1 ^^ 2) {}
// Not OK
void bar(size_t N)(int[N] a, int[N ^ 2]
On Tuesday, 10 February 2015 at 08:12:00 UTC, Vladimir Panteleev
wrote:
Why is that?
Потому что я спорил с одним упёртым человеком, которому не
нравится D, на этом форуме:
http://www.cyberforum.ru/holywars/thread1367892-page13.html
Он просил меня написать такую программу с использованием
On Tuesday, 10 February 2015 at 08:40:38 UTC, Dennis Ritchie
wrote:
On Tuesday, 10 February 2015 at 08:12:00 UTC, Vladimir
Panteleev wrote:
Why is that?
Потому что я спорил с одним упёртым человеком, которому не
нравится D, на этом форуме:
void bar(size_t N)(int[N] a, int[N ^ 2] b) {}
I meant:
void bar(size_t N)(int[N] a, int[N ^^ 2] b) {}
bearophile wrote:
ted:
Could someone enlighten me ?
This works:
import std.range: ElementType, isInputRange;
ElementType!R testFunc(R, T)(R range, T foo)
if (is(ElementType!R == T)) {
static assert(isInputRange!R);
typeof(return) retVal = foo ^^ 2; // More DRY.
bearophile wrote:
ted:
... where you say 'More DRY' above, are you referring to
I was referring to both, but mostly to the typeof. It's more DRY
(http://en.wikipedia.org/wiki/Don%27t_repeat_yourself ). You are
stating only once the type of the return variable. This is less
bug-prone.
I think this can be filed in Bugzilla as diagnostic enhancement:
class Foo {
@disable this();
this(int i) {}
}
void main() {}
https://issues.dlang.org/show_bug.cgi?id=14163
Bye,
bearophile
ted:
... where you say 'More DRY' above, are you referring to
I was referring to both, but mostly to the typeof. It's more DRY
(http://en.wikipedia.org/wiki/Don%27t_repeat_yourself ). You are
stating only once the type of the return variable. This is less
bug-prone.
Bye,
bearophile
On 02/10/2015 01:08 AM, bearophile wrote:
// Not OK
void bar(size_t N)(int[N] a, int[N ^^ 2] b) {}
So perhaps my suggestion to file an enhancement request is not
a good idea...
I am not sure. Although the template system already does pretty clever
deductions, I think they are all based on
On Tue, 10 Feb 2015 08:40:36 +, Dennis Ritchie wrote:
On Tuesday, 10 February 2015 at 08:12:00 UTC, Vladimir Panteleev wrote:
Why is that?
ÐоÑÐ¾Ð¼Ñ ÑÑо Ñ ÑпоÑил Ñ Ð¾Ð´Ð½Ð¸Ð¼ ÑпÑÑÑÑм
Ñеловеком, коÑоÑÐ¾Ð¼Ñ Ð½Ðµ нÑавиÑÑÑ D,
на ÑÑом
On Monday, February 09, 2015 15:25:14 Steven Schveighoffer via
Digitalmars-d-learn wrote:
Well, if I do this:
class C {}
I can do this:
new C();
Mechanisms to disable this are kind of awkward. I can define this() as
private, but that doesn't help for intra-module calls.
static class C
How do I write a byte[] in raw (unformatted) format to disk?
File(f.raw, wb).write(x)
doesn't seem to do it.
Why isn't the wb interpreted as raw bytes?
On Tuesday, 10 February 2015 at 11:03:06 UTC, Per Nordlöw wrote:
How do I write a byte[] in raw (unformatted) format to disk?
File(f.raw, wb).write(x)
doesn't seem to do it.
Why isn't the wb interpreted as raw bytes?
Oops, I just discovered
File(f.raw, wb).rawWrite(x)
.
On Tuesday, 10 February 2015 at 11:33:54 UTC, bearophile wrote:
Dennis Ritchie:
Please help.
This starts to look like homework :-)
Bye,
bearophile
This is not homework - this is a war of code on C#/F# and D. I've
been programming in D, my opponent on F#/C#.
On Tue, 10 Feb 2015 11:33:54 +, bearophile wrote:
Dennis Ritchie:
Please help.
This starts to look like homework :-)
it's much worse: meaningless pseudocomparison of different languages for
nothing.
signature.asc
Description: PGP signature
On Monday, 9 February 2015 at 20:15:28 UTC, Jonathan M Davis
wrote:
On Monday, February 09, 2015 13:29:22 Steven Schveighoffer via
Digitalmars-d-learn wrote:
On 2/8/15 2:57 PM, Jonathan M Davis via Digitalmars-d-learn
wrote:
On Sunday, February 08, 2015 17:51:09 bearophile via
I have the quite computer with 2 GB RAM. At compilation with dub
and dmd of small project this pair eating about 1.4~1.5 GB RAM. I
solve this probleb by connecting swap partition, but it calls
some freezes + it take ~10% of swap, and after compilation swap
not released. At switching off swap
Please help.
import std.stdio;
import std.stdio;
void main()
{
/* return (a xor b xor c) */
int nobitxor(int a, int b, int c) {
return (a + b + c == 2 || a + b + c == 0) ? 0 : 1;
}
int a, b, c;
a = b = c = 0;
Dennis Ritchie:
Please help.
This starts to look like homework :-)
Bye,
bearophile
Vlasov Roman:
I have the quite computer with 2 GB RAM. At compilation with
dub and dmd of small project this pair eating about 1.4~1.5 GB
RAM. I solve this probleb by connecting swap partition, but it
calls some freezes + it take ~10% of swap, and after
compilation swap not released. At
On Tuesday, 10 February 2015 at 11:41:20 UTC, ketmar wrote:
On Tue, 10 Feb 2015 11:33:54 +, bearophile wrote:
Dennis Ritchie:
Please help.
This starts to look like homework :-)
it's much worse: meaningless pseudocomparison of different
languages for
nothing.
This task
V Tue, 10 Feb 2015 11:44:09 +
Vlasov Roman via Digitalmars-d-learn
digitalmars-d-learn@puremagic.com napsáno:
On Tuesday, 10 February 2015 at 11:32:32 UTC, bearophile wrote:
Vlasov Roman:
I have the quite computer with 2 GB RAM. At compilation with
dub and dmd of small project this
On Tue, 10 Feb 2015 13:03:14 +, Vlasov Roman wrote:
Whether correctly I understand that the problem is that my dependences
have other dependences which are compiled with my project?
dub tries to build the libraries your project depends on, and some of
that libraries are very big. but once
On Tue, Feb 10, 2015 at 09:05:06PM +, Meta via Digitalmars-d-learn wrote:
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:
[...]
test.o: In function `_Dmain':
test.d:(.text._Dmain+0x13): undefined reference to
`_D8terminal8Terminal6__initZ'
test.d:(.text._Dmain+0x3c): undefined
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:
test.o: In function `_Dmain':
test.d:(.text._Dmain+0x13): undefined reference to
`_D8terminal8Terminal6__initZ'
If you see 'undefined reference' it means some library wasn't
passed to the compiler. Easiest fix is usually to add the .d
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:
On Tuesday, 10 February 2015 at 19:49:26 UTC, ketmar wrote:
On Tue, 10 Feb 2015 19:37:59 +, Meta wrote:
I can't answer your question, but if you're just prototyping
you could
use Adam Ruppe's terminal.d until you get ncurses
On Tuesday, 10 February 2015 at 20:57:43 UTC, Adam D. Ruppe wrote:
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:
test.o: In function `_Dmain':
test.d:(.text._Dmain+0x13): undefined reference to
`_D8terminal8Terminal6__initZ'
If you see 'undefined reference' it means some library
On Tuesday, 10 February 2015 at 21:05:08 UTC, Meta wrote:
On Tuesday, 10 February 2015 at 20:50:28 UTC, Paul wrote:
On Tuesday, 10 February 2015 at 19:49:26 UTC, ketmar wrote:
On Tue, 10 Feb 2015 19:37:59 +, Meta wrote:
I can't answer your question, but if you're just prototyping
you
On Tue, 10 Feb 2015 19:37:59 +, Meta wrote:
I can't answer your question, but if you're just prototyping you could
use Adam Ruppe's terminal.d until you get ncurses working.
https://github.com/adamdruppe/arsd/blob/master/terminal.d
and i daresay that with 'terminal.d' there is no need in
On Tuesday, 10 February 2015 at 13:18:34 UTC, Paul wrote:
On Wednesday, 3 December 2014 at 19:37:03 UTC, Paul wrote:
On Wednesday, 3 December 2014 at 17:37:18 UTC, Matt Soucy
wrote:
On 12/03/2014 07:07 AM, Paul wrote:
Sorry if this is a little off-topic, I posted this in the
Dub forum on
Hi
I am coming from Java. What is the purpose of an object file
why is it generated at compile time in addition to an executable.
I know C generates an object file too, but I don't know what the
use is.
Please point me to any detailed documentation u may have
regarding object files.
On Wednesday, 11 February 2015 at 05:08:16 UTC, Venkat Akkineni
wrote:
I am coming from Java. What is the purpose of an object file
why is it generated at compile time in addition to an
executable. I know C generates an object file too, but I don't
know what the use is.
Java uses a similar
Thanks Gentlemen. That helped.
On Monday, 9 February 2015 at 00:00:00 UTC, bearophile wrote:
Tobias Pankrath:
Check for null with (x is null) not via printing to stdout.
In most cases instead of checking dynamic arrays for null, it's
better to use std.array.empty.
Bye,
bearophile
On Wednesday, 11 February 2015 at 05:08:16 UTC, Venkat Akkineni
wrote:
Hi
I am coming from Java. What is the purpose of an object file
why is it generated at compile time in addition to an
executable. I know C generates an object file too, but I don't
know what the use is.
Hi Venkat,
On Wednesday, 11 February 2015 at 01:06:02 UTC, Mike Parker wrote:
On 2/11/2015 8:38 AM, Arjan wrote:
Snippet from:
https://github.com/buggins/ddbc/blob/master/dub.json#L7
ddbc has a dependencies on mysql-native: =0.0.12. But
this is
only true for configurations: MySQL.
Is it allowed to put
On Tuesday, 10 February 2015 at 12:42:07 UTC, ketmar wrote:
On Tue, 10 Feb 2015 11:44:09 +, Vlasov Roman wrote:
On Tuesday, 10 February 2015 at 11:32:32 UTC, bearophile wrote:
Vlasov Roman:
I have the quite computer with 2 GB RAM. At compilation with
dub and
dmd of small project this
On Wednesday, 3 December 2014 at 19:37:03 UTC, Paul wrote:
On Wednesday, 3 December 2014 at 17:37:18 UTC, Matt Soucy wrote:
On 12/03/2014 07:07 AM, Paul wrote:
Sorry if this is a little off-topic, I posted this in the Dub
forum on 23/11/14 but have had no reply yet:
---
I read that the use
On Tue, 10 Feb 2015 11:44:09 +, Vlasov Roman wrote:
On Tuesday, 10 February 2015 at 11:32:32 UTC, bearophile wrote:
Vlasov Roman:
I have the quite computer with 2 GB RAM. At compilation with dub and
dmd of small project this pair eating about 1.4~1.5 GB RAM. I solve
this probleb by
On Tuesday, 10 February 2015 at 11:55:43 UTC, Daniel Kozák wrote:
V Tue, 10 Feb 2015 11:44:09 +
Vlasov Roman via Digitalmars-d-learn
digitalmars-d-learn@puremagic.com napsáno:
On Tuesday, 10 February 2015 at 11:32:32 UTC, bearophile wrote:
Vlasov Roman:
I have the quite computer with 2
On Tuesday, 10 February 2015 at 21:14:36 UTC, H. S. Teoh wrote:
Judging by the name of the object file (test.o) and the name of
the code
section (.text), I'd say this is definitely Posix. :-) So the
question
is why that ctor isn't defined in spite of it being Posix.
T
Heh, you are right. I
Snippet from:
https://github.com/buggins/ddbc/blob/master/dub.json#L7
ddbc has a dependencies on mysql-native: =0.0.12. But this
is only true for configurations: MySQL.
Is it allowed to put the dependency within the configuration
section for MySQL?.
dependencies: {
mysql-native:
On Tuesday, 10 February 2015 at 21:11:14 UTC, Paul wrote:
Yes, I noted the default values, even if I don't understand
what they do at present(!).
They allow overriding of the input/output files. fdIn normally
refers to standard input, fdOut refers to standard output, and
the getSizeOverride
F#:
let f = function
| 0 , 0 , 0 - 0
| 0 , 1 , 1 - 0
| 1 , 0 , 1 - 0
| 1 , 1 , 0 - 0
| _ - 1
for a in 0..1 do
for b in 0..1 do
for c in 0..1 do
printfn %i xor %i xor %i = %i a b c (f (a, b, c))
Output:
0 xor 0 xor 0 = 0
0 xor 0 xor 1 = 1
0
Dennis Ritchie:
Output:
0 xor 0 xor 0 = 0
0 xor 0 xor 1 = 1
0 xor 1 xor 0 = 1
0 xor 1 xor 1 = 0
1 xor 0 xor 0 = 1
1 xor 0 xor 1 = 0
1 xor 1 xor 0 = 0
1 xor 1 xor 1 = 1
This man again took advantage of the fact that in D there is no
such operation - (analog switch).
A natural solution in D:
On 2/11/2015 8:38 AM, Arjan wrote:
Snippet from: https://github.com/buggins/ddbc/blob/master/dub.json#L7
ddbc has a dependencies on mysql-native: =0.0.12. But this is
only true for configurations: MySQL.
Is it allowed to put the dependency within the configuration section for
MySQL?.
Yes.
On Wednesday, 11 February 2015 at 00:56:03 UTC, bearophile wrote:
Dennis Ritchie:
Output:
0 xor 0 xor 0 = 0
0 xor 0 xor 1 = 1
0 xor 1 xor 0 = 1
0 xor 1 xor 1 = 0
1 xor 0 xor 0 = 1
1 xor 0 xor 1 = 0
1 xor 1 xor 0 = 0
1 xor 1 xor 1 = 1
This man again took advantage of the fact that in D there
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