On Tuesday, 4 May 2021 at 22:02:11 UTC, Ali Çehreli wrote:
On 5/4/21 1:40 PM, Chris Piker wrote:
> I only care about columns 0, 2, 3, 4, 8, 9, 10.
That's std.range.stride.
> char[][] wanted = string_range.get( [1, 5, 7] ); //
pseudo-code element
That's std.range.indexed.
Hey Thanks!
And e
On 5/4/21 3:06 PM, Imperatorn wrote:
>> Is there any limitation as to the number of pointer indirections?
No.
>> I have a construct:
>>a.b.c.d = x;
>> where all the variables are pointers to struct (the same struct).
>>
>> This fails with 'Access Violation',
>> but if I change the code to:
On Tuesday, 4 May 2021 at 21:16:10 UTC, DLearner wrote:
Hi
Is there any limitation as to the number of pointer
indirections?
I have a construct:
a.b.c.d = x;
where all the variables are pointers to struct (the same
struct).
This fails with 'Access Violation',
but if I change the code to
On 5/4/21 3:02 PM, Ali Çehreli wrote:
>// Note: The above works only because 'stride' applies
>// "design by introspection" (DbI) and is able to work as a
>// RandomAccessRanges.
Ok, I was too enthusiastic there. The RandomAccessRange'ness of the
input range changes how efficient st
On 5/4/21 1:40 PM, Chris Piker wrote:
> I only care about columns 0, 2, 3, 4, 8, 9, 10.
That's std.range.stride.
> char[][] wanted = string_range.get( [1, 5, 7] ); // pseudo-code element
That's std.range.indexed.
import std.range;
import std.stdio;
void main() {
auto r = 10.iota.stride(2)
Hi
Is there any limitation as to the number of pointer indirections?
I have a construct:
a.b.c.d = x;
where all the variables are pointers to struct (the same struct).
This fails with 'Access Violation',
but if I change the code to:
temp = a.b.c;
temp.d = x;
everything seems to work.
Be
Hi D
I have a white-space delimited file with quite a few columns, but
I only care about columns 0, 2, 3, 4, 8, 9, 10. Since I don't
need most of the 60+ columns it seemed like:
std.algorithm.iteration.splitter()
would be a better function to use then std.array.split(). My
problem is t
On Tuesday, 4 May 2021 at 14:18:30 UTC, Ola Fosheim Grøstad wrote:
On Tuesday, 4 May 2021 at 13:58:59 UTC, Steven Schveighoffer
wrote:
Yeah, I wasn't aware of the more general usage, I thought it
was always a pointer adjustment. But I also am not steeped in
the terminology, just parroting what
On Tuesday, 4 May 2021 at 13:58:59 UTC, Steven Schveighoffer
wrote:
Yeah, I wasn't aware of the more general usage, I thought it
was always a pointer adjustment. But I also am not steeped in
the terminology, just parroting what I've heard.
My understanding is that a thunk is the code object th
On 5/4/21 6:03 AM, Ola Fosheim Grøstad wrote:
On Tuesday, 4 May 2021 at 01:20:15 UTC, Q. Schroll wrote:
On Saturday, 1 May 2021 at 06:17:36 UTC, Mike Parker wrote:
On Saturday, 1 May 2021 at 04:55:10 UTC, frame wrote:
I always thought as long as an object implements an interface, it
should be
On 5/4/21 9:21 AM, Paul Backus wrote:
On Tuesday, 4 May 2021 at 10:21:42 UTC, Ola Fosheim Grøstad wrote:
On Saturday, 1 May 2021 at 16:06:05 UTC, Steven Schveighoffer wrote:
An interface cast involves a thunk (constant pointer adjustment) to
get to the interface/object
Yes, but it isn't a htt
On Tuesday, 4 May 2021 at 01:20:15 UTC, Q. Schroll wrote:
On Saturday, 1 May 2021 at 06:17:36 UTC, Mike Parker wrote:
No. An interface is like a pointer to a pointer.
Can you elaborate on this one? I don't really get it. Is an
object handle also like a pointer to a pointer? (I feel like I
c
On Tuesday, 4 May 2021 at 10:21:42 UTC, Ola Fosheim Grøstad wrote:
On Saturday, 1 May 2021 at 16:06:05 UTC, Steven Schveighoffer
wrote:
An interface cast involves a thunk (constant pointer
adjustment) to get to the interface/object
Yes, but it isn't a https://en.wikipedia.org/wiki/Thunk ?
Th
On Tuesday, 4 May 2021 at 11:21:20 UTC, Zone wrote:
```D
template Vectorize_Unary_Function(alias fun) {
float[N] Vectorize_Unary_Function(size_t N)(float[N] vec)
{
float[N] result;
static foreach (i; 0 .. N)
result[i] = fun(vec[i]);
return result;
}
On Tuesday, 4 May 2021 at 11:00:42 UTC, Blatnik wrote:
I'm porting over my linear algebra library from C++, and I have
a bunch of functions that work on both scalars and vectors. The
vector versions just apply the scalar function to every element
of the vector, for example:
```D
float clamp01
On Tuesday, 4 May 2021 at 11:00:42 UTC, Blatnik wrote:
How could I do this?
I've already tried this:
```D
mixin template Vectorize_Unary_Function(alias Function)
{
float[N] Function(size_t N)(float[N] vec)
{
float[N] result;
static foreach (i; 0 .. N)
result[i] = Function(vec
I'm porting over my linear algebra library from C++, and I have a
bunch of functions that work on both scalars and vectors. The
vector versions just apply the scalar function to every element
of the vector, for example:
```D
float clamp01(float x) { return x < 0 ? 0 : (x > 1 ? 1 : x); }
float
On Saturday, 1 May 2021 at 16:06:05 UTC, Steven Schveighoffer
wrote:
An interface cast involves a thunk (constant pointer
adjustment) to get to the interface/object
Yes, but it isn't a https://en.wikipedia.org/wiki/Thunk ?
On Tuesday, 4 May 2021 at 01:20:15 UTC, Q. Schroll wrote:
On Saturday, 1 May 2021 at 06:17:36 UTC, Mike Parker wrote:
On Saturday, 1 May 2021 at 04:55:10 UTC, frame wrote:
I always thought as long as an object implements an
interface, it should be able to cast it from a void* if it
really poin
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