I've just started learning D and noticed a bug, but wanted to
confirm it here before reporting it.
According to spec: "If the new array length is shorter, the array
is not reallocated, and no data is copied. It is equivalent to
slicing the array". Contradicted by a trivial program:
void
On 24.12.2015 14:57, Chris wrote:
On Thursday, 24 December 2015 at 09:30:24 UTC, Rainer Schuetze wrote:
In the locals window, mago displays all instances of variables, but
with the same value (which might be some uninitialized value of a
different declaration than expected). The Visual Studio
On Sunday, 27 December 2015 at 15:19:21 UTC, FrankLike wrote:
Hi,
Now I need get the .a file on Linux,target system is ARM.
If you use gcc ,you will use the 'ar' to get .a file,
but how to do by GDC ?
And how to get the execute file by .a file and .d file?
Thank you.
I couldn't have
On Sunday, 27 December 2015 at 16:41:10 UTC, TheDGuy wrote:
It looks like the debugger is not working correctly because i
changed the code to this:
[...]
and the same problem appears.
I can't watch youtube here. What numbers does your input
generate? Which 'if' doesn't fire? What results
On Sunday, 27 December 2015 at 07:40:55 UTC, Ali Çehreli wrote:
It looks like you need map(), not each():
import std.algorithm;
import std.typecons;
import std.array;
void main() {
auto a = [ 1, 2 ];
auto arr = a.map!(e => tuple(2 * e, e * e)).array;
static assert(is(typeof(arr)
On Sunday, 27 December 2015 at 16:39:18 UTC, SimonN wrote:
On Sunday, 27 December 2015 at 16:01:37 UTC, TheDGuy wrote:
Sry:
if((x1 < 0) & (x2 >= 0)){
This looks like a bug, with & instead of &&.
-- Simon
It looks like the debugger is not working correctly because i
On Sunday, 27 December 2015 at 15:19:21 UTC, FrankLike wrote:
Hi,
Now I need get the .a file on Linux,target system is ARM.
If you use gcc ,you will use the 'ar' to get .a file,
but how to do by GDC ?
And how to get the execute file by .a file and .d file?
Thank you.
Just use ar on the
On Sunday, 27 December 2015 at 18:03:16 UTC, Bubbasaur wrote:
On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
Tell me one thing, what is the value returned?
Well It's working here:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
On Sunday, 27 December 2015 at 16:01:37 UTC, TheDGuy wrote:
Sry:
if((x1 < 0) & (x2 >= 0)){
This looks like a bug, with & instead of &&.
-- Simon
On Sunday, 27 December 2015 at 16:48:44 UTC, SimonN wrote:
On Sunday, 27 December 2015 at 16:41:10 UTC, TheDGuy wrote:
It looks like the debugger is not working correctly because i
changed the code to this:
[...]
and the same problem appears.
I can't watch youtube here. What numbers does
On Sunday, 27 December 2015 at 02:21:11 UTC, Ali Çehreli wrote:
On 12/26/2015 05:26 PM, Karthikeyan wrote:
> if I need to map on a array of tuples will that work with the
tuple being
> unpacked or do I need to get it as single element and do
unpacking myself?
Unfortunately, there is no
I have a binary tree storing ints implemented using an array. The
internal state looks like this:
8,7,6,4,1,3,5,2
When extracting this data, it is returned as 8,7,6,5,4,3,2,1.
Is it possible to elegantly add a range on top of the internal
state to return the correct value order I would
On Sunday, 27 December 2015 at 15:24:17 UTC, tcak wrote:
On Sunday, 27 December 2015 at 15:19:21 UTC, FrankLike wrote:
Hi,
Now I need get the .a file on Linux,target system is ARM.
If you use gcc ,you will use the 'ar' to get .a file,
but how to do by GDC ?
And how to get the execute
See the following code:
import std.stdio;
void foo(ref int x)
{
writefln("%s", x);
}
void main(string[] args)
{
int y = 0;
foo(y++);
}
When compiled it produces this error:
test.d(11): Error: function test.foo (ref int x) is not callable
using argument types (int)
On Sunday, 27 December 2015 at 16:52:39 UTC, TheDGuy wrote:
I don't understand why my program goes into the if statement if
the debugger shows, that the variable "discriminant" is below
zero even though:
"if(discriminant > 0)"?
I have a hard time believing this. Does the problem persist if
On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
Tell me one thing, what is the value returned?
Well It's working here: http://dpaste.dzfl.pl/18b27ea26b08
Maybe you would like to change the code above to
On Sunday, 27 December 2015 at 16:05:39 UTC, Gary Willoughby
wrote:
If I remove the post-increment of the y variable if works. Is
this an rvalue reference issue? Would you expect this to work?
This should work with *pre*-increment, but not post-increment.
Post-increment works like this:
int
On Sunday, 27 December 2015 at 16:05:39 UTC, Gary Willoughby
wrote:
void foo(ref int x)
foo(y++);
If I remove the post-increment of the y variable if works. Is
this an rvalue reference issue?
Yes, but more than that, what, exactly, would you expect from
that? The order of operations
On Sunday, 27 December 2015 at 18:47:52 UTC, Adam D. Ruppe wrote:
On Sunday, 27 December 2015 at 18:40:55 UTC, Jeremy DeHaan
wrote:
I was playing around with some code today and I noticed that
in some cases struct destructors are not called.
struct destructors are called when the struct
On Sunday, 27 December 2015 at 17:23:35 UTC, Gary Willoughby
wrote:
I have a binary tree storing ints implemented using an array.
The internal state looks like this:
8,7,6,4,1,3,5,2
When extracting this data, it is returned as 8,7,6,5,4,3,2,1.
Is it possible to elegantly add a range on top
On Sunday, 27 December 2015 at 18:54:25 UTC, Adam D. Ruppe wrote:
On Sunday, 27 December 2015 at 16:05:39 UTC, Gary Willoughby
wrote:
[...]
Yes, but more than that, what, exactly, would you expect from
that? The order of operations with the postfix ++ operator and
ref would probably lead to
On Saturday, 26 December 2015 at 05:31:59 UTC, Ur@nuz wrote:
On Friday, 25 December 2015 at 20:06:04 UTC, drug wrote:
25.12.2015 17:13, Ur@nuz пишет:
[...]
You can do following http://dpaste.dzfl.pl/41c57f89a5a0
The reason of compile error is your using a range as a
separator, change it
On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote:
On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
You could post the code also, personnaly I'm always almost at 2
meters from my screen, with zoom,
On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
You could post the code also, personnaly I'm always almost at 2
meters from my screen, with zoom, so I can't read the code...
On Sunday, 27 December 2015 at 18:40:55 UTC, Jeremy DeHaan wrote:
I was playing around with some code today and I noticed that in
some cases struct destructors are not called.
struct destructors are called when the struct ceases to exist in
the program.
A global variable never ceases to
On Sunday, 27 December 2015 at 19:04:11 UTC, Jeremy DeHaan wrote:
So are these left dangling or do they actually get cleaned up
at the program exit?
They are left dangling right now. You can clear it yourself by
defining a `static ~this() { .destroy(your struct); }` somewhere
in the module.
I'm doing some re-writing and measuring. The basic task is to
take 10K samples (in struct S samples below) and calculate some
metrics (just per sample for now). It isn't evident to me how to
write the parallel foreach in the same format as each!, so I just
used the loop form that I
On Sunday, 27 December 2015 at 20:06:53 UTC, TheDGuy wrote:
I don't know what my computer is doing today:
x and y are coordinates and if x is any number from 0 to 150
the result of x/width is always zero
Dividing Integers will result in Integer:
int x = 10, width = 50;
Hi,
Now I need get the .a file on Linux,target system is ARM.
If you use gcc ,you will use the 'ar' to get .a file,
but how to do by GDC ?
And how to get the execute file by .a file and .d file?
Thank you.
I was playing around with some code today and I noticed that in
some cases struct destructors are not called.
for example:
impost std.stdio;
SomeStruct global;
void main()
{
SomeStruct inMain;
writeln(global.thing);
writeln(inMain.thing);
writeln(getSomeInt());
}
int
I don't know what my computer is doing today:
code:
double normalized_i = (x / width) - 0.5;
double normalized_j = (y / height) - 0.5;
writeln(x);
writeln(normalized_i);
writeln(y);
On 12/27/2015 02:09 AM, milentin wrote:
> I've just started learning D and noticed a bug, but wanted to confirm it
> here before reporting it.
>
> According to spec: "If the new array length is shorter, the array is not
> reallocated, and no data is copied. It is equivalent to slicing the
>
On 12/27/2015 04:17 PM, Jay Norwood wrote:
On Sunday, 27 December 2015 at 23:42:57 UTC, Ali Çehreli wrote:
That does not compile because i is size_t but apply_metrics() takes
an int. One solution is to call to!int:
foreach( i, ref a; parallel(samples[])){
apply_metrics(i.to!int,a);}
On Sunday, 27 December 2015 at 23:42:57 UTC, Ali Çehreli wrote:
On 12/27/2015 11:30 AM, Jay Norwood wrote:
> samples[].each!((int i, ref a)=>apply_metrics(i,a));
Are you using an older compiler? That tuple expansion does not
work any more at least with dmd v2.069.0 but you can use
On Sunday, 27 December 2015 at 22:36:32 UTC, Ali Çehreli wrote:
[Several hours later...]
You know what... I bet there is no actual allocation at all. I
think what happens is, the code calls GC.realloc(24) and
realloc() does not do anything. However, it still reports to
the profiler that
On Sunday, 27 December 2015 at 22:51:27 UTC, Ali Çehreli wrote:
On 12/27/2015 07:53 AM, TheDGuy wrote:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
YouTube says that the video has been removed by the user.
That's exactly the reason why I don't like even dpaste.
On Sunday, 27 December 2015 at 23:42:57 UTC, Ali Çehreli wrote:
That does not compile because i is size_t but apply_metrics()
takes an int. One solution is to call to!int:
foreach( i, ref a; parallel(samples[])){
apply_metrics(i.to!int,a);}
It builds for me still, and executes ok,
On 12/27/2015 07:53 AM, TheDGuy wrote:
Any idea what i am doing wrong?
https://www.youtube.com/watch?v=j_VCa-5VeP8
YouTube says that the video has been removed by the user. That's exactly
the reason why I don't like even dpaste. There is no guarantee that such
threads will be useful forever.
On 12/27/2015 08:42 AM, Jay Norwood wrote:
> However, I was trying to use each!, with the intention of then moving to
> parallel processing by samples blocks. My guess is this would be more
> efficient than using parallel map or amap, which would parallel process
> by function application, if I
My code:
http://dpaste.com/1X3E1HW
i store colors in the accumulator-array and draw them via
"cr.rectangle()". Because i have some problems with the code i
set the SourceRgb-color to a constant value but if i execute the
program, the window remains white.
On 12/27/2015 11:30 AM, Jay Norwood wrote:
> samples[].each!((int i, ref a)=>apply_metrics(i,a));
Are you using an older compiler? That tuple expansion does not work any
more at least with dmd v2.069.0 but you can use enumerate():
Now I build a project for ARM linux on ubuntu 15.04 ,but build
error.
I download the 'wiringPi' from http://wiringPi.com,convert the
*.h to *.d.then build the 'aa.so' file:
#! /bin/sh
dfiles="max31855.d max5322.d mcp23008.d mcp23016.d mcp23016reg.d
mcp23017.d mcp23s08.d mcp23s17.d mcp23x08.d
On Sunday, 27 December 2015 at 20:01:47 UTC, Gary Willoughby
wrote:
On Sunday, 27 December 2015 at 17:23:35 UTC, Gary Willoughby
wrote:
I have a binary tree storing ints implemented using an array.
The internal state looks like this:
8,7,6,4,1,3,5,2
When extracting this data, it is returned
On Sunday, 27 December 2015 at 22:36:32 UTC, Ali Çehreli wrote:
I don't understand why that happens. I found one related bug:
https://issues.dlang.org/show_bug.cgi?id=13750
I can understand that assignment to arr.length cannot be @nogc
but I would expect a check against length so that there
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