Let's say I want to create an array of random numbers and do some
operations on them:
void main() {
import std.random;
//Generate array of random numbers
int arrSize = 1;
double[] arr = new double[](arrSize);
foreach (i; 0..arrSize)
arr[i] = uniform01();
On Saturday, 21 January 2017 at 12:33:57 UTC, albert-j wrote:
Now I dmd -profile it and look at the performance of funcA with
d-profile-viewer. Inside funcA, only 20% of time is spend in
funcB, but the rest 80% is self-time of funcA. How is it
possible, when funcB has three times the
Le 21/01/2017 à 13:24, Jerry a écrit :
On Friday, 20 January 2017 at 22:47:17 UTC, Xavier Bigand wrote:
Hi,
I am writing some code with opengl commands that I want to check in
debug, so I am using the function checkgl (from glamour lib).
The issue is that checkgl throw exception and can't be
On Thursday, 19 January 2017 at 08:06:04 UTC, ketmar wrote:
alias is not a macro, it is alias to *symbol*. only symbol, not
any arbitrary expression.
In fact, it can nowadays be. You just have to mark it so, with a
lambda:
void main()
{ import std.stdio;
auto myArray = [2, 3, 5, 6];
On Friday, 20 January 2017 at 22:47:17 UTC, Xavier Bigand wrote:
Hi,
I am writing some code with opengl commands that I want to
check in debug, so I am using the function checkgl (from
glamour lib).
The issue is that checkgl throw exception and can't be @nogc, I
had try to use
I'm not sure if it's what happening in this case but, in code
as simple as this, function calls can sometimes be the
bottleneck. You should see how compiling with/without -O
affects performance, and adding `pragma(inline)` to funcB.
When compiled with -inline, the profiler does not report the
Hi friends,
Is there a way to "compile" d code to C, similar to what nim does?
That would be cool for greater portability.
Thank you both!
On Saturday, 21 January 2017 at 18:38:22 UTC, Nestor wrote:
Hi friends,
Is there a way to "compile" d code to C, similar to what nim
does?
That would be cool for greater portability.
The wiki says there was a dmd fork that attempted this 5 years
ago, don't know how far he got:
On Saturday, 21 January 2017 at 18:38:22 UTC, Nestor wrote:
That would be cool for greater portability.
The hard part in porting to a new platform is rarely the code
generation - gdc and ldc have diverse backends already (indeed,
they tend to work for D as well as C there). But you still
On Saturday, 21 January 2017 at 18:38:22 UTC, Nestor wrote:
Hi friends,
Is there a way to "compile" d code to C, similar to what nim
does?
That would be cool for greater portability.
No, and this is actually a terrible idea. See
Simplified:
import std.stdio;
struct Widget {
private int[] array;
this(uint length) {
array = new int[length];
writefln("ctor called : %s", array.ptr);
}
this(this) {
writef( "this(this) called: %s", array.ptr );
array = array.dup;
On 01/21/2017 03:19 PM, Ali Çehreli wrote:
this(this) {
TIL! Change the signature and it works without copies:
this(const(this)) {
// ...
}
How did I miss this for so long?
Ali
On 01/21/2017 03:36 PM, Ali Çehreli wrote:
> Change the signature and it works without copies:
>
> this(const(this)) {
> // ...
> }
Ugh... :( It's not a post-blit. Then what is it?
Ali
On 01/21/2017 07:22 PM, Basile B. wrote:
On Sunday, 22 January 2017 at 00:31:38 UTC, Ali Çehreli wrote:
On 01/21/2017 03:36 PM, Ali Çehreli wrote:
> Change the signature and it works without copies:
>
> this(const(this)) {
> // ...
> }
Ugh... :( It's not a post-blit. Then what
On Sunday, 22 January 2017 at 03:42:21 UTC, Ali Çehreli wrote:
On 01/21/2017 07:22 PM, Basile B. wrote:
[...]
Wow! Thanks.
I know about 'alias this' but this (pun!) is new to me. TIL
indeed and WAT (four exclamation marks is right in this
case. :o) )
import std.stdio;
struct S {
On Sunday, 22 January 2017 at 00:31:38 UTC, Ali Çehreli wrote:
On 01/21/2017 03:36 PM, Ali Çehreli wrote:
> Change the signature and it works without copies:
>
> this(const(this)) {
> // ...
> }
Ugh... :( It's not a post-blit. Then what is it?
Ali
This is a __ctor that takes
Compile this and see, (it's crazy!):
import std.stdio;
struct Widget {
private int[] array;
this(uint length) {
array = new int[length];
}
this(this) {
writeln( "this(this) called" );
array = array.dup;
}
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