On Thursday, 27 January 2022 at 16:46:59 UTC, Ali Çehreli wrote:
What I know is that weak symbols can be overridden by strong
symbols during linking. Which means, if a function body is
inlined which also has a weak symbol, some part of the program
may be using the inlined definition and some
On Sunday, 31 January 2021 at 12:16:50 UTC, Imperatorn wrote:
On Saturday, 30 January 2021 at 23:34:50 UTC, Stefan Koch wrote:
On Saturday, 30 January 2021 at 22:47:39 UTC, Ahmet Sait wrote:
[...]
I have a way of getting the profile data your are after.
Get the dmd_tracing_20942 branch from
On Friday, 18 December 2020 at 13:00:45 UTC, Severin Teona wrote:
Hi guys!
Do you know how can I compile D code using LDC with the
following gcc flags?
* -msingle-pic-base
* -mpic-register=r9
* -mno-pic-data-is-text-relative.
As far as I know, there are no equivalents in D for these. Is
is
On Sunday, 25 October 2020 at 10:03:44 UTC, Ali Çehreli wrote:
Is it really safe? Imagine a multi-threaded environment where
another D function is executed that triggers a GC collection
right before the printf.
Does the GC see that local variable 'name' that is on the C
side? What I don't
On Sunday, 23 February 2020 at 11:55:11 UTC, drathier wrote:
On Sunday, 23 February 2020 at 11:41:25 UTC, Johan Engelen
wrote:
On Sunday, 23 February 2020 at 09:59:45 UTC, drathier wrote:
I'm having some trouble with the order in which `static
this()` runs. This is the order defined in the
On Sunday, 23 February 2020 at 09:59:45 UTC, drathier wrote:
I'm having some trouble with the order in which `static this()`
runs. This is the order defined in the source file, numbered
for convenience:
To avoid confusion: you have all `static this()` in a single
source file? Or across
On Saturday, 28 December 2019 at 20:47:38 UTC, Mike Parker wrote:
On Saturday, 28 December 2019 at 20:22:51 UTC, JN wrote:
import std.stdio;
class Base
{
bool b = true;
}
class Derived : Base
{
bool b = false;
}
void main()
{
// 1
Base b = new Derived();
writeln(b.b); // true
On Tuesday, 26 November 2019 at 12:53:02 UTC, Jonathan M Davis
wrote:
On Tuesday, November 26, 2019 4:29:18 AM MST S.G via
Digitalmars-d-learn wrote:
On Tuesday, 26 November 2019 at 10:24:00 UTC, Robert M. Münch
wrote:
> How can I write something like this to check if any of a set
> of
Just a brief answer.
On Saturday, 19 October 2019 at 15:58:08 UTC, IGotD- wrote:
Which one is it, LDC recognizes TestClass isn't derived or is
sure that the class (c) isn't derived in particular?
It is the latter: the optimizer is able to prove that object c
has a vtable that is known
On Thursday, 3 October 2019 at 14:21:37 UTC, Andrea Fontana wrote:
In D arrays are fat pointer instead:
int[10] my_array;
my_array is actually a pair ptr+length.
```
int[10] my_static_array;
int[] my_dynamic_array;
```
my_static_array will not be a fat pointer. Length is known at
compile
On Tuesday, 17 September 2019 at 20:16:12 UTC, Anonymouse wrote:
On Tuesday, 17 September 2019 at 19:31:53 UTC, Steven
Schveighoffer wrote:
I'd hate to say the answer is to special case Nullable for so
many functions, but what other alternative is there?
-Steve
Nullable isn't alone,
On Friday, 6 September 2019 at 09:14:31 UTC, Andrew Edwards wrote:
C++ allows the for following:
struct Demo
{
float a, b, c, d;
Demo() { a = b = c = d = 0.0f; }
Demo(float _a, float _b, float _c, float _d) {
a = _a;
b = _b;
On Tuesday, 9 July 2019 at 15:25:17 UTC, Dukc wrote:
I just downloaded ldc 1.15.0 for Linux from GH releases.
Testing it, it will make the object file out of a hello world
application, but then complain:
```
collect2: fatal error: cannot find ‘ld’
compilation terminated.
```
Run LDC with
On Sunday, 9 June 2019 at 05:24:56 UTC, Amex wrote:
Can dmd or ldc optimize the following cases:
foo(int x)
{
if (x > 10 && x < 100) bar1; else bar2;
}
...
for(int i = 23; i < 55; i++)
foo(i); // equivalent to calling bar1(i)
clearly i is within the range of the if in foo and so the
On Tuesday, 21 May 2019 at 13:23:54 UTC, Benjamin Schaaf wrote:
On Tuesday, 21 May 2019 at 11:54:08 UTC, Robert M. Münch wrote:
Is there a trick to accomplish 2 when objects are created from
different scopes which need to be kept? So, I have one
function creating the objects and one using
On Saturday, 11 May 2019 at 11:34:35 UTC, Denis Feklushkin wrote:
On Saturday, 11 May 2019 at 09:12:24 UTC, Johan Engelen wrote:
Those calls are to templated functions I presume?
No
Then I don't understand how you'd see instrumentation on
functions that you did not compile with
On Saturday, 11 May 2019 at 06:59:52 UTC, Denis Feklushkin wrote:
On Saturday, 11 May 2019 at 05:46:29 UTC, Denis Feklushkin
wrote:
All another calls is made inside of this lambda - maybe
lambdas is not traced by profiler?
Tried to remove lambda with same result.
Command:
llvm-profdata
On Friday, 10 May 2019 at 14:00:30 UTC, Denis Feklushkin wrote:
Build with dub some package. Profiling are enabled by dub.json:
"dflags-ldc": ["-fprofile-instr-generate",
"-finstrument-functions", "-cov"],
Resulting default.profraw (and generated default.profdata)
contains only calls to
On Sunday, 7 April 2019 at 14:08:07 UTC, Archie Allison wrote:
This generally works OK when tied to a Console but when link
options are changed to be SUBSYSTEM:WINDOWS and
ENTRY:mainCRTStartup it rarely does.
Manually setting the entry point sounds problematic if no other
precautions are
On Saturday, 16 March 2019 at 03:47:43 UTC, Murilo wrote:
Does anyone know if when I create a variable inside a scope as
in
{int a = 10;}
it disappears complete from the memory when the scope finishes?
Or does it remain in some part of the memory? I am thinking of
using scopes to make
On Wednesday, 13 March 2019 at 20:57:13 UTC, Denis Feklushkin
wrote:
import std.stdio;
struct S { int x; }
ref S func1(ref S i) // i is reference
{
return i;
}
ref S func2(S i) // i is not reference
{
return func1(i); // Works! Possibility to return reference to
local object i?
The following code compiles:
```
alias T = shared(int)*;
shared T a;
shared T b;
shared T c;
void foo() {
import core.atomic: cas;
cas(, b, c);
}
```
The type of T has to be a pointer to a shared int (you get a
template match error for `cas` if `T = int*`), which is annoying
but I
On Monday, 21 January 2019 at 17:08:23 UTC, Johan Engelen wrote:
For LDC, dereferencing `null` invokes Undefined Behavior [1].
For completeness, you can tell LDC that dereferencing `null` is
_not_ UB in a particular function by specifying
`@llvmAttr("null-pointer-is-valid", "true")`:
On Saturday, 19 January 2019 at 17:45:41 UTC, Patrick Schluter
wrote:
Afaict NULL pointer derefernecing must fault for D to be
"usable". At least all code is written with that assumption.
Dereferencing `null` in D is implementation defined
(https://dlang.org/spec/arrays.html#pointers).
For
On Monday, 21 January 2019 at 14:36:15 UTC, Márcio Martins wrote:
On Thursday, 17 January 2019 at 00:11:10 UTC, Johan Engelen
wrote:
OK, got it :-) LLVM 7 changed things a little, so it's broken
with LDC 1.13 [*].
For now, you can use LDC 1.12 (LLVM 6). You also have to add
`-L-lstdc++`
On Wednesday, 16 January 2019 at 23:29:45 UTC, Johan Engelen
wrote:
On Wednesday, 16 January 2019 at 22:10:14 UTC, Johan Engelen
wrote:
On Wednesday, 16 January 2019 at 17:36:31 UTC, Márcio Martins
wrote:
On Tuesday, 15 January 2019 at 22:51:15 UTC, Johan Engelen
wrote:
What platform are you
On Wednesday, 16 January 2019 at 22:10:14 UTC, Johan Engelen
wrote:
On Wednesday, 16 January 2019 at 17:36:31 UTC, Márcio Martins
wrote:
On Tuesday, 15 January 2019 at 22:51:15 UTC, Johan Engelen
wrote:
What platform are you on?
Linux x64
OK, so that should work. What is your testcase? Try
On Wednesday, 16 January 2019 at 17:36:31 UTC, Márcio Martins
wrote:
On Tuesday, 15 January 2019 at 22:51:15 UTC, Johan Engelen
wrote:
What platform are you on?
Linux x64
OK, so that should work. What is your testcase? Try with
`-fxray-instruction-threshold=1` to also instrument small
On Tuesday, 15 January 2019 at 14:32:03 UTC, Márcio Martins wrote:
Anyone has any idea how to build with LDC and -fxray-instrument?
I am running LDC 1.13 on Linux (x64)
The XRay section is in the binary, and the compiler-rt is
linked in, but when I run the binary with
On Sunday, 13 January 2019 at 16:29:27 UTC, Kagamin wrote:
---
struct A
{
int a;
this(int)
{
if(__ctfe)this(0,0); //Error: one path skips constructor
else a=0;
}
this(int,int){ a=1; }
}
---
Is this supposed to not compile?
Yes.
See spec 14.14.8.1:
On Friday, 11 January 2019 at 15:23:08 UTC, Dgame wrote:
On Friday, 11 January 2019 at 14:46:36 UTC, Andrey wrote:
Hi,
In C++ you can create a fixed array on stack:
int count = getCount();
int myarray[count];
Small correction: this is valid in C, but not in C++.
In D the "count" is part of
On Tuesday, 8 January 2019 at 12:54:11 UTC, RazvanN wrote:
Hi all,
I am working on issue 14650 [1]
Great!
(I am _extremely_ surprised that dtors are not called for
globals.)
and I would like to implement a
solution where static destructors are destroying global
variables. However, I have
On Monday, 7 January 2019 at 14:39:07 UTC, Per Nordlöw wrote:
What's the preferred way of doing bitwise rotate of an integral
value in D?
Are there intrinsics for bitwise rotation available in LDC?
LDC does not expose this intrinsic currently, but you can use
LLVM's fshl:
On Thursday, 27 December 2018 at 12:07:48 UTC, Rene Zwanenburg
wrote:
On Tuesday, 25 December 2018 at 22:07:07 UTC, Johannes Loher
wrote:
Thanks a lot for the info, that clarifies things a bit. But it
still leaves the question, why it works correctly when
inheriting from an abstract class
On Monday, 24 December 2018 at 11:18:44 UTC, Ron Tarrant wrote:
I found a mention that in the definition of a delegate, a
function parameter and its type could be replaced by an
underscore:
myTestRig.addOnDestroy(delegate void(Widget w) { quitApp(); } );
became:
On Sunday, 23 December 2018 at 14:07:04 UTC, Johannes Loher wrote:
I recently played around with atomic operations. While doing
so, I noticed a problem with the interaction of interfaces and
cas. Consider the following program:
```
import core.atomic;
import std.stdio;
interface
On Thursday, 29 November 2018 at 15:10:41 UTC, realhet wrote:
In conclusion: Maybe LDC2 generates a lot of extra code, but I
always make longer asm routines, so it's not a problem for me
at all while it helps me a lot.
An extra note: I recommend you look into using
`ldc.llvmasm.__asm` to
On Wednesday, 21 November 2018 at 03:05:07 UTC, Neia Neutuladh
wrote:
Virtual function calls have to do a dereference to figure out
which potentially overrided function to call.
"have to do a dereference" in terms of "dereference" as language
semantic: yes.
"have to do a dereference" in
On Wednesday, 21 November 2018 at 07:47:14 UTC, Jonathan M Davis
wrote:
IMHO, requiring something in the spec like "it must segfault
when dereferencing null" as has been suggested before is
probably not a good idea is really getting too specific
(especially considering that some folks have
On Wednesday, 21 November 2018 at 09:31:41 UTC, Patrick Schluter
wrote:
On Tuesday, 20 November 2018 at 23:14:27 UTC, Johan Engelen
wrote:
On Tuesday, 20 November 2018 at 19:11:46 UTC, Steven
Schveighoffer wrote:
On 11/20/18 1:04 PM, Johan Engelen wrote:
D does not make dereferencing on
On Tuesday, 20 November 2018 at 19:11:46 UTC, Steven
Schveighoffer wrote:
On 11/20/18 1:04 PM, Johan Engelen wrote:
D does not make dereferencing on class objects explicit, which
makes it harder to see where the dereference is happening.
Again, the terms are confusing. You just said the
On Tuesday, 20 November 2018 at 03:38:14 UTC, Jonathan M Davis
wrote:
For @safe to function properly, dereferencing null _must_ be
guaranteed to be memory safe, and for dmd it is, since it will
always segfault. Unfortunately, as understand it, it is
currently possible with ldc's optimizer to
On Friday, 13 July 2018 at 14:51:17 UTC, ketmar wrote:
yeah. in simple words: safe code is *predictable*, but not
"segfault-less". segfaults (null dereferences) in safe code are
allowed, 'cause they have completely predictable behavior
(instant program termination).
@safe doesn't free you
On Saturday, 2 June 2018 at 10:49:30 UTC, rjframe wrote:
There is documentation for older Phobos versions online, but I
don't remember the link and haven't found it by searching.
https://docarchives.dlang.io/
On Friday, 1 June 2018 at 21:18:25 UTC, IntegratedDimensions
wrote:
What is the best optimizations that a compiler does to switches
in general and in the D compilers?
The best possible depends a lot on the specific case at hand.
Best possible is to fully elide the switch, which does happen.
On Tuesday, 22 May 2018 at 16:17:48 UTC, Russel Winder wrote:
Hi,
I have a shared object (of DInotify) compiled with ldc2.
I have a program (me-tv) which seems to work when compiled with
ldc2.
If I compile the program (me-tv) with dmd then it throws a
SIGSEGV seemingly
in
On Thursday, 10 May 2018 at 19:14:39 UTC, Meta wrote:
So it looks like disabling a struct's postblit actually counts
as having a __postblit and __xpostblit function (don't ask me
why), in addition to a construction and opAssign... no idea
why, and maybe this is a bug, but I bet there's a
On Thursday, 3 May 2018 at 23:47:40 UTC, IntegratedDimensions
wrote:
trying to compile a simple program in x86. Compiles fine in dmd
and ldcx64.
Seems like ldc is using the wrong lib for some reason?
phobos2-ldc.lib(json.obj) : fatal error LNK1112: module machine
type 'x64' conflicts with
On Friday, 30 March 2018 at 10:23:15 UTC, Cecil Ward wrote:
Say that I use say GDC or LDC. I want to declare a routine as
public in one compilation unit (.d src file) and be able to
access it from other compilation units.
Do I simply declare the routine with the word keyword public
before
On Wednesday, 28 March 2018 at 16:42:23 UTC, Johan Engelen wrote:
On Tuesday, 27 March 2018 at 22:10:33 UTC, Per Nordlöw wrote:
On Tuesday, 27 March 2018 at 22:00:42 UTC, Johan Engelen wrote:
Indeed.
Please try to manually link first (without dub) by modifying
the command on which dub errors:
On Thursday, 29 March 2018 at 08:44:21 UTC, Jacob Carlborg wrote:
Please read the reply :), although it could be a bit more clear.
I'll spell it out for you.
Both `dflags` and `lflags` are being used already. With separate
compilation and linking, there seems to be no way to pass flags
to
On Wednesday, 28 March 2018 at 17:03:07 UTC, Seb wrote:
dub supports dflags and lflags in the config file. lflags are
the linker commands.
Please read the thread.
`lflags` is for passing flags to the _linker_ (i.e. those flags
are prefixed with -L when passed to the _compiler_)
Here,
On Tuesday, 27 March 2018 at 22:10:33 UTC, Per Nordlöw wrote:
On Tuesday, 27 March 2018 at 22:00:42 UTC, Johan Engelen wrote:
Indeed.
Please try to manually link first (without dub) by modifying
the command on which dub errors:
```
ldmd2 -flto=thin
On Tuesday, 27 March 2018 at 13:28:08 UTC, kinke wrote:
On Monday, 26 March 2018 at 23:32:59 UTC, Nordlöw wrote:
forwarded as `-L-flto=thin` but still errors as
Which is wrong, it's not a ld command-line option (i.e., the
`-L` prefix is wrong).
Indeed.
Please try to manually link first
On Monday, 26 March 2018 at 22:07:49 UTC, Nordlöw wrote:
When I try build my application using LDC and -flto=thin it
fails in the final linking
You must also pass `-flto=thin` during linking (a special plugin
is needed for LTO, and LDC will only pass the plugin to the
linker when `-flto=` is
On Monday, 19 March 2018 at 12:45:58 UTC, tipdbmp wrote:
the LLVM IR obtained with -output-ll might be easier to read
than assembly.)
I only seem to get assembly on d.godbolt.org, even with the
-output-ll option.
On d.godbolt.org, you can get LLVM IR with a trick: use
`-output-s=false
On Saturday, 10 March 2018 at 07:54:33 UTC, Mike Franklin wrote:
On Saturday, 10 March 2018 at 02:25:38 UTC, Richard wrote:
Hi,
I've been trying to see if I can get an mbed project to work
with Dlang
basically compiling D code for use on a Cortex-M Proccessor
You might be interested in the
On Monday, 5 March 2018 at 06:01:27 UTC, J-S Caux wrote:
On Monday, 5 March 2018 at 05:40:09 UTC, rikki cattermole wrote:
On 05/03/2018 6:35 PM, J-S Caux wrote:
I'm considering shifting a large existing C++ codebase into D
(it's a scientific code making much use of functions like
atan, log
On Friday, 2 March 2018 at 08:25:51 UTC, dangbinghoo wrote:
So, does anyone know how to install latest ldc2 from arm-debain?
You can use the dlang install.sh script to download LDC and put
it in your home dir: https://dlang.org/install.html
-Johan
On Wednesday, 14 February 2018 at 12:22:09 UTC, Vino wrote:
Hi All,
Request your help on how to get the disk space used and free
size of a Network share folder in Windows, tried with getSize
but it return 0;
See:
On 01/27/2018 11:42 AM, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
Careful with these comparisons guys. Know what you are looking at.
Rust does not eliminate setting the framepointer register, and so
it looks "bad" [1].
Clang also sets the framepointer for macOS ABI regardless of
On Saturday, 27 January 2018 at 19:45:35 UTC, Stefan Koch wrote:
ah ... -betterC is only for dmd.
`-betterC` works from LDC 1.1.0.
- Johan
On Wednesday, 17 January 2018 at 22:56:09 UTC, kinke wrote:
On Wednesday, 17 January 2018 at 22:01:57 UTC, Johan Engelen
wrote:
```
struct GSharedVariable(AddrSpace as, T)
{
static __gshared T val;
alias val this;
}
alias Global(T) = GSharedVariable!(AddrSpace.Global, T);
On Friday, 12 January 2018 at 04:25:25 UTC, Nicholas Wilson wrote:
Is there a way to make __gshared part of an alias?
Hi Nick, how about this?
```
struct GSharedVariable(AddrSpace as, T)
{
static __gshared T val;
alias val this;
}
alias Global(T) = GSharedVariable!(AddrSpace.Global,
On Tuesday, 2 January 2018 at 18:21:13 UTC, Tim Hsu wrote:
I am creating Vector3 structure. I use struct to avoid GC.
However, struct will be copied when passed as parameter to
function
struct Ray {
Vector3f origin;
Vector3f dir;
@nogc @system
this(Vector3f *origin, Vector3f
On Friday, 29 December 2017 at 10:23:24 UTC, codephantom wrote:
On Friday, 29 December 2017 at 09:38:50 UTC, Vino wrote:
Let me re-frame the question with an example, as the Dsafe
the below line of code is considered as unsafe(Pointer
arithmetic),
...
ini[10] a;
int* p = [0];
for
On Sunday, 24 December 2017 at 02:48:32 UTC, Chris Katko wrote:
It would probably be really helpful to get a clear Wiki guide
for this information LDC. I'll write it myself if necessary
once I try your recommendations and test them out.
This would help us out a lot, thanks.
-Johan
On Friday, 22 December 2017 at 09:52:26 UTC, Chris Katko wrote:
DMD can use -profile and -profile=gc. But I tried for HOURS to
find the equivalent for LDC and came up with only
profile-guided optimization--which I don't believe I want. Yet,
if we can get PGO... where's the PROFILE itself it's
On Wednesday, 20 December 2017 at 23:28:46 UTC, jicman wrote:
Greetings!
Imagine,
//start
int getMe(int i)
{
writefln(__LINE__);
writefln(__FUNCTION_NAME__);
So close! Use "__FUNCTION__" or "__PRETTY_FUNCTION__".
https://dlang.org/spec/traits.html#specialkeywords
-Johan
On Friday, 1 December 2017 at 18:55:53 UTC, Steven Schveighoffer
wrote:
Once you popFront a byLine range, the element that was at front
is now possibly invalid (the buffer may be reused). So in order
to return the line from popFront, you have to store it
somewhere. This means allocating
On Friday, 1 December 2017 at 18:33:09 UTC, Ali Çehreli wrote:
On 12/01/2017 07:21 AM, Steven Schveighoffer wrote:
> On 12/1/17 4:29 AM, Johan Engelen wrote:
>> (Also, I would expect "popFront" to return the element
popped, but it
>> doesn't, OK...
>
> pop removes the front element, but if
On Friday, 1 December 2017 at 09:11:40 UTC, Johan Engelen wrote:
I tested it and it works like you wrote, but the behavior is
different for an array of integers...:
Hmm, I guess I misread what Ali meant. But the documentation is
wrong/very confusing for moveFront:
It says "moveFront --
On Thursday, 30 November 2017 at 06:36:12 UTC, Ali Çehreli wrote:
import std.range;
struct S {
int i;
bool is_a_copy = false;
this(this) {
is_a_copy = true;
}
}
void main() {
auto r = [S(1)];
auto a = r.front;
assert(a.is_a_copy); // yes, a is a
On Wednesday, 11 October 2017 at 22:45:14 UTC, Jonathan M Davis
wrote:
On Wednesday, October 11, 2017 22:22:43 Johan Engelen via
Digitalmars-d- learn wrote:
std.string.removechars is now deprecated.
https://dlang.org/changelog/2.075.0.html#pattern-deprecate
What is now the most efficient way
std.string.removechars is now deprecated.
https://dlang.org/changelog/2.075.0.html#pattern-deprecate
What is now the most efficient way to remove characters from a
string, if only one type of character needs to be removed?
```
// old
auto old(string s) {
return s.removechars(",").to!int;
On Wednesday, 13 September 2017 at 14:40:55 UTC, Nathan S. wrote:
Is there a formal description of "hoist-load", "hoist-store",
"sink-load", and "sink-store" as used in
core.atomic.MemoryOrder
(https://dlang.org/library/core/atomic/memory_order.html)?
You can read this:
On Friday, 15 September 2017 at 04:01:13 UTC, Timothy Foster
wrote:
I've been calling it like so:
ErrorFMOD(FMOD_System_Create(), "Error Creating System:
");
Making the calls without my helper function doesn't cause an
Access Violation.
Calling it like this is the only thing that seems to
On Thursday, 7 September 2017 at 05:45:58 UTC, Ali Çehreli wrote:
You have to measure.
Indeed.
Here's a start:
The program has way too many things pre-defined, and the
semantics are such that workWithDoubles can be completely
eliminated... So you are not measuring what you want to be
On Thursday, 7 September 2017 at 16:08:53 UTC, Piotr Mitana wrote:
main.d(17): Error: one path skips constructor
main.d(15): Error: return without calling constructor
http://www.digitalmars.com/d/archives/digitalmars/D/learn/Throwing_exception_in_constructor_28995.html
On Wednesday, 6 September 2017 at 20:43:01 UTC, Igor wrote:
I opened a feature request on github. I also tried using the
gccbuiltins but I got this error:
LLVM ERROR: Cannot select: 0x2199c96fd70: v16i8 =
X86ISD::PSHUFB 0x2199c74e9a8, 0x2199c74d6c0
That's because SSSE3 instructions are
On Monday, 4 September 2017 at 20:39:11 UTC, Igor wrote:
I found that I can't use __simd function from core.simd under
LDC and that it has ldc.simd but I couldn't find how to
implement equivalent to this with it:
ubyte16* masks = ...;
foreach (ref c; pixels) {
c = __simd(XMM.PSHUFB,
On Wednesday, 16 August 2017 at 16:54:04 UTC, Pham wrote:
On Wednesday, 16 August 2017 at 13:55:31 UTC, Steven
Schveighoffer wrote:
On 8/16/17 9:12 AM, Daniel Kozak via Digitalmars-d-learn wrote:
It should not be print? AIAIK std.utf.toUTF16 is not
deprecated:
On Sunday, 13 August 2017 at 09:15:48 UTC, amfvcg wrote:
Change the parameter for this array size to be taken from stdin
and I assume that these optimizations will go away.
This is paramount for all of the testing, examining, and
comparisons that are discussed in this thread.
Full
On Sunday, 13 August 2017 at 09:08:14 UTC, Petar Kirov
[ZombineDev] wrote:
This instantiation:
sum_subranges(std.range.iota!(int, int).iota(int, int).Result,
uint)
of the following function:
auto sum_subranges(T)(T input, uint range)
{
import std.range : chunks, ElementType, array;
On Monday, 7 August 2017 at 13:40:18 UTC, Moritz Maxeiner wrote:
Thanks, I wasn't aware of this. I tried fooling around scope
classes and DIP1000 for a bit and was surprised that this is
allowed:
Thanks for the test case :-)
It was fun to see that ASan can catch this bug too. Because
On Tuesday, 8 August 2017 at 19:38:19 UTC, Steven Schveighoffer
wrote:
Note that C++ also can do this, so I'm not sure the & is
accomplishing the correct goal:
void foo(Klass&);
int main()
{
Klass *k = NULL;
foo(*k);
}
In C++, it is clear that the _caller_ is doing the
On Tuesday, 8 August 2017 at 18:57:48 UTC, Steven Schveighoffer
wrote:
On 8/8/17 2:34 PM, Johan Engelen wrote:
Hi all,
How would you express the function interface intent that a
reference to a class may not be null?
For a function "void foo(Klass)", calling "foo(null)" is
valid. How do I
Hi all,
How would you express the function interface intent that a
reference to a class may not be null?
For a function "void foo(Klass)", calling "foo(null)" is valid.
How do I express that that is invalid? (let's leave erroring with
a compile error aside for now)
Something equivalent to
On Saturday, 29 July 2017 at 16:01:07 UTC, piotrekg2 wrote:
Hi,
I'm trying to port some of my c++ code which uses sse2
instructions into D. The code calls the following intrinsics:
- _mm256_loadu_si256
- _mm256_movemask_epi8
Do they have any equivalent intrinsics in D?
Yes, with LDC
On Sunday, 23 July 2017 at 08:43:33 UTC, Guillaume Piolat wrote:
I rely a lot on such constants for SSE:
align(16) static immutable short[8] A = [ 1, 1, 1, 1, 3, 3,
3, 3 ];
Does such alignment actually work on all OS, at all times?
Word on the street says align() doesn't work with
On Sunday, 25 June 2017 at 23:02:28 UTC, Adam D. Ruppe wrote:
On Sunday, 25 June 2017 at 22:53:07 UTC, Johan Engelen wrote:
I meant semantically no call.
In the existing language, I think version (or static if) at the
usage and definition points both is as good as you're going to
get.
At
On Sunday, 25 June 2017 at 23:02:28 UTC, Adam D. Ruppe wrote:
That'd be kinda tricky because the arguments would still be
liable to be evaluated...
Well..
I guess someone might argue that's a mis-feature of my
preprocessor example: "foo(i++)" may not do what you want. (So
the C code
On Sunday, 25 June 2017 at 22:23:44 UTC, Moritz Maxeiner wrote:
The solution obviously does *not* work if you change the
premise of your question after the fact by artificially
injecting instructions into all function bodies
I meant semantically no call. I am asking for a little more
On Sunday, 25 June 2017 at 16:31:52 UTC, Moritz Maxeiner wrote:
On Sunday, 25 June 2017 at 15:58:48 UTC, Johan Engelen wrote:
[...]
If version(X) is not defined, there should be no call and no
extra code at -O0.
[...]
In C, you could do something like:
```
#if X
void foo() {..}
#else
On Sunday, 25 June 2017 at 16:29:20 UTC, Anonymouse wrote:
Am I missing something, or can't you just version both the
function and the function ćall?
version(X)
void foo() { /* ... */ }
void main()
{
version(X)
{
foo();
}
}
I am hoping for something where "foo()" would
How would you solve this problem: do an optional function call
depending on some version(X). If version(X) is not defined, there
should be no call and no extra code at -O0.
```
{
...
foo(); // either compiles to a function call, or to _nothing_.
...
}
```
In C, you could do something
On Sunday, 18 June 2017 at 09:56:50 UTC, Steven Schveighoffer
wrote:
On Sunday, 18 June 2017 at 09:28:57 UTC, Johan Engelen wrote:
Reviving this thread to see whether anything has changed on
the topic.
If Timon gets static for each into the language, it can look a
little better.
Can you
Reviving this thread to see whether anything has changed on the
topic.
I now have this monster:
```
struct FMT {
// has immutable members. FMT cannot be assigned to.
}
FMT monsterThatCompilerAccepts(T)(){
alias TP = Tuple!(__traits(getAttributes, T));
foreach(i, att; TP){
On Saturday, 10 June 2017 at 11:43:06 UTC, Johan Engelen wrote:
On Friday, 9 June 2017 at 16:21:22 UTC, Honey wrote:
What seems particularly strange to me is that -boundscheck=off
leads to a performance decrease.
Strange indeed.
`-release` should be synonymous with `-release
On Friday, 9 June 2017 at 16:21:22 UTC, Honey wrote:
What seems particularly strange to me is that -boundscheck=off
leads to a performance decrease.
Strange indeed.
`-release` should be synonymous with `-release -boundscheck=off`.
Investigating...
- Johan
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