Re: Can't get Visual D to come up. No warnings, no errors, no nothing
On Tuesday, 23 September 2014 at 05:13:58 UTC, evilrat wrote: On Tuesday, 23 September 2014 at 03:14:27 UTC, WhatMeWorry wrote: I've downloaded the "isolated shell and the integrated package" installer and successfully installed them both. But after that I have no clue as to how to proceed. I only ran vdserver.exe because it is the only executable that I can find. shell version have name like "Visual Studio 2013" and finally, located at Program Files/Microsoft Visual Studio 12.0/Common7/IDE/devenv.exe
Re: Can't get Visual D to come up. No warnings, no errors, no nothing
On Tuesday, 23 September 2014 at 03:14:27 UTC, WhatMeWorry wrote: On Monday, 22 September 2014 at 03:30:22 UTC, Vladimir Panteleev wrote: On Monday, 22 September 2014 at 03:21:44 UTC, WhatMeWorry wrote: Anybody installed Visual D recently? As per the install instructions, I downloaded the Visual Studio isolated Shell 2013 and its integrated package. Everything went smoothly. I then downloaded Visual D and installed it with no problems. However, when I try to run the vdserver.exe application, nothing happens? Am I missing something obvious? Why are you running vdserver.exe? Since Visual D is a VS extension, wouldn't the expected way to use it is to start Visual Studio [Shell], and create a D project? Right. Then I guess I should be asking how does one start the Visual Studio Shell (isolated or otherwise)? I've downloaded the "isolated shell and the integrated package" installer and successfully installed them both. But after that I have no clue as to how to proceed. I only ran vdserver.exe because it is the only executable that I can find. shell version have name like "Visual Studio 2013"
Re: Does remove immutability using cast to pass in a function make sense?
On 09/22/2014 07:07 PM, AsmMan wrote:
I have this array:
static immutable string[] months = ["jan", "fev", ...];
I need to pass it into canFind(). But it doesn't works with immutables
so I need to cast it like in canFind(cast(string[]) months, month) to
work. There's a reason related to design why it doesn't work with
immutables or a function just wasn't written?
What I want to know is if I'm doing something wrong in casting it to
work. I know from C which such casts should be done carefully
What is the compiler version? The following works with dmd git head:
import std.algorithm;
static immutable string[] months = ["jan", "fev" ];
void main()
{
assert(months.canFind("jan"));
}
If it still doesn't work for you please show us a minimal program that
demonstrates the problem.
Ali
Re: Can't get Visual D to come up. No warnings, no errors, no nothing
On Monday, 22 September 2014 at 03:30:22 UTC, Vladimir Panteleev wrote: On Monday, 22 September 2014 at 03:21:44 UTC, WhatMeWorry wrote: Anybody installed Visual D recently? As per the install instructions, I downloaded the Visual Studio isolated Shell 2013 and its integrated package. Everything went smoothly. I then downloaded Visual D and installed it with no problems. However, when I try to run the vdserver.exe application, nothing happens? Am I missing something obvious? Why are you running vdserver.exe? Since Visual D is a VS extension, wouldn't the expected way to use it is to start Visual Studio [Shell], and create a D project? Right. Then I guess I should be asking how does one start the Visual Studio Shell (isolated or otherwise)? I've downloaded the "isolated shell and the integrated package" installer and successfully installed them both. But after that I have no clue as to how to proceed. I only ran vdserver.exe because it is the only executable that I can find.
Does remove immutability using cast to pass in a function make sense?
I have this array: static immutable string[] months = ["jan", "fev", ...]; I need to pass it into canFind(). But it doesn't works with immutables so I need to cast it like in canFind(cast(string[]) months, month) to work. There's a reason related to design why it doesn't work with immutables or a function just wasn't written? What I want to know is if I'm doing something wrong in casting it to work. I know from C which such casts should be done carefully
Re: can't understand why code do not working
On 09/22/2014 01:12 PM, Suliman wrote: > std.concurrency.OwnerTerminated@std\concurrency.d(234): Owner terminated > I feel bad about that uninteresting first example that lost you time. :( There are a number of options: - The main thread can call thread_joinAll() to wait for all workers to finish. - The threads can have a protocol to signal each other that they are done. (I used 'struct Exit' in that chapter.) - Threads can detect exceptions like OwnerTerminated and act accordingly. The rest of the chapter has examples of those options. Ali
Re: can't understand why code do not working
On Monday, 22 September 2014 at 21:28:25 UTC, Cliff wrote: On Monday, 22 September 2014 at 21:24:58 UTC, monarch_dodra wrote: On Monday, 22 September 2014 at 21:19:37 UTC, Steven Schveighoffer wrote: On 9/22/14 4:37 PM, Cliff wrote: Is stdout threadsafe? Yes, stdout is thread safe, it's based on C's stdout which is thread safe. -Steve Techinallly, though thread "safe", concurrent writes will create garbled text. D goes one step further in the sense that it prevents concurrent writes entirely. The reason I ask is that the first iteration of his loop does not show up in stdout as presented. I would expect 1 and 3 to be the first two lines of the output. For that matter I also don't expect the 6 and 18 - nevermind, there must be something else going on with that loop. He must have changed the loop limits.
Re: can't understand why code do not working
On Monday, 22 September 2014 at 21:24:58 UTC, monarch_dodra wrote: On Monday, 22 September 2014 at 21:19:37 UTC, Steven Schveighoffer wrote: On 9/22/14 4:37 PM, Cliff wrote: Is stdout threadsafe? Yes, stdout is thread safe, it's based on C's stdout which is thread safe. -Steve Techinallly, though thread "safe", concurrent writes will create garbled text. D goes one step further in the sense that it prevents concurrent writes entirely. The reason I ask is that the first iteration of his loop does not show up in stdout as presented. I would expect 1 and 3 to be the first two lines of the output.
Re: can't understand why code do not working
On Monday, 22 September 2014 at 20:12:28 UTC, Suliman wrote: std.concurrency.OwnerTerminated@std\concurrency.d(234): Owner terminated You need to make sure your main waits for its workers before exiting. When main "dies", it sends an exception message to anyone still working.
Re: can't understand why code do not working
On Monday, 22 September 2014 at 21:19:37 UTC, Steven Schveighoffer wrote: On 9/22/14 4:37 PM, Cliff wrote: Is stdout threadsafe? Yes, stdout is thread safe, it's based on C's stdout which is thread safe. -Steve Techinallly, though thread "safe", concurrent writes will create garbled text. D goes one step further in the sense that it prevents concurrent writes entirely.
Re: can't understand why code do not working
On Monday, 22 September 2014 at 20:37:42 UTC, Cliff wrote: Is stdout threadsafe? Yes. All io operations lock in D, so are thread safe. You will never have interlaced io. If you want to do several opeations, then you can use LockingTextWriter, which is faster, s it locks once until you are finished. Though to be honest, the io itself is slow enough that I've never needed it.
Re: can't understand why code do not working
On 9/22/14 4:37 PM, Cliff wrote: Is stdout threadsafe? Yes, stdout is thread safe, it's based on C's stdout which is thread safe. -Steve
New changes to DDOC where is the tag coming from in parent classes?
Below is a change that results from re-generating my documentation using ddoc. I wonder where the new tags are coming from that wrap the parent class name. -class class="symbol">Button: tkd.widget.textwidget.TextWidget; +class class="symbol">Button: tkd.widget.textwidget.TextWidget; Has there been a new ddoc symbol defined and not mentioned in: http://dlang.org/ddoc.html I've redefined most of these in my own .ddoc file and can't seem to get rid of the new tag. Is there a master ddoc file being read from somewhere? Any help?
Re: can't understand why code do not working
On Monday, 22 September 2014 at 20:12:28 UTC, Suliman wrote:
void worker()
{
int value = 0;
while (value <=10)
{
value = receiveOnly!int();
writeln(value);
int result = value * 3;
ownerTid.send(result);
}
}
give me:
Running .\app1.exe
2
6
3
9
4
12
5
15
6
18
std.concurrency.OwnerTerminated@std\concurrency.d(234): Owner
terminated
0x00405777 in pure @safe void
std.concurrency.receiveOnly!(int).receiveOnly().__
lambda3(std.concurrency.OwnerTerminated) at
C:\DMD\dmd2\windows\bin\..\..\src\ph
obos\std\concurrency.d(730)
0x0040B88D in @safe void std.concurrency.Message.map!(pure
@safe void function(s
td.concurrency.OwnerTerminated)*).map(pure @safe void
function(std.concurrency.O
wnerTerminated)*) at
C:\DMD\dmd2\windows\bin\..\..\src\phobos\std\concurrency.d(
158)
0x0040B0B6 in
D3std11concurrency10MessageBox151__T3getTDFNbNfiZvTPFNaNfC3std11co
ncurrency14LinkTerminatedZvTP8047E12172B30CAF110369CD57C78A37
at C:\DMD\dmd2\win
dows\bin\..\..\src\phobos\std\concurrency.d(1159)
Is stdout threadsafe?
Re: can't understand why code do not working
void worker()
{
int value = 0;
while (value <=10)
{
value = receiveOnly!int();
writeln(value);
int result = value * 3;
ownerTid.send(result);
}
}
give me:
Running .\app1.exe
2
6
3
9
4
12
5
15
6
18
std.concurrency.OwnerTerminated@std\concurrency.d(234): Owner
terminated
0x00405777 in pure @safe void
std.concurrency.receiveOnly!(int).receiveOnly().__
lambda3(std.concurrency.OwnerTerminated) at
C:\DMD\dmd2\windows\bin\..\..\src\ph
obos\std\concurrency.d(730)
0x0040B88D in @safe void std.concurrency.Message.map!(pure @safe
void function(s
td.concurrency.OwnerTerminated)*).map(pure @safe void
function(std.concurrency.O
wnerTerminated)*) at
C:\DMD\dmd2\windows\bin\..\..\src\phobos\std\concurrency.d(
158)
0x0040B0B6 in
D3std11concurrency10MessageBox151__T3getTDFNbNfiZvTPFNaNfC3std11co
ncurrency14LinkTerminatedZvTP8047E12172B30CAF110369CD57C78A37 at
C:\DMD\dmd2\win
dows\bin\..\..\src\phobos\std\concurrency.d(1159)
Re: can't understand why code do not working
On 09/22/2014 12:36 PM, Suliman wrote:
void worker()
{
int value = 0;
value = receiveOnly!int();
writeln(value);
int result = value * 3;
ownerTid.send(result);
}
Your worker terminates after receiving one int and sending one response.
It should be waiting in a loop.
Ali
can't understand why code do not working
Already 1 hour I am looking at example from
http://ddili.org/ders/d.en/concurrency.html and my modification
of it, and can't understand what's difference? Why it's output
only:
1
3
and then do not do nothing!
import std.stdio;
import std.concurrency;
import core.thread;
void main()
{
Tid wk = spawn(&worker);
foreach(v; 1..5)
{
wk.send(v);
int result = receiveOnly!int();
writeln(result);
}
}
void worker()
{
int value = 0;
value = receiveOnly!int();
writeln(value);
int result = value * 3;
ownerTid.send(result);
}
Re: Segfault in DMD OSX
Here's with debug symbols in DMD Program received signal SIGSEGV, Segmentation fault. 0x00010013c4d0 in TemplateInstance::findBestMatch (this=0x101c34050, sc=0x12058d740, fargs=0x0) at template.c:7329 7329 tempdecl->kind(), tempdecl->parent->toPrettyChars(), tempdecl->ident->toChars()); (gdb) print havetempdecl $1 = false (gdb) print tempdecl->kind() $2 = 0x100290149 "overload alias" (gdb) print tempdecl->parent->toPrettyChars() Cannot access memory at address 0x0 (gdb) print tempdecl->ident->toChars() $3 = 0x100515bd8 "Array" (gdb) print tempdel->parent No symbol "tempdel" in current context. (gdb) print tempdecl->parent $4 = (Dsymbol *) 0x0 (gdb) print tempdecl $5 = (Dsymbol *) 0x1095fbc50 (gdb) The tempdecl->parent is being accessed even though it may be null in :7329 : ::error(loc, "%s %s.%s does not match any template declaration", tempdecl->kind(), tempdecl->parent->toPrettyChars(), tempdecl->ident->toChars());
Re: Segfault in DMD OSX
I managed to get gdb running, here's what I get: Starting program: /bin/dmd -lib -m64 -g source/event/internals/epoll.d source/event/internals/kqueue.d source/event/internals/path.d source/event/internals/validator.d source/event/internals/hashmap.d source/event/internals/memory.d source/event/internals/socket_compat.d source/event/internals/win32.d source/event/file.d source/event/tcp.d source/event/timer.d source/event/watcher.d source/event/dns.d source/event/types.d source/event/windows.d source/event/events.d source/event/notifier.d source/event/signal.d source/event/threads.d source/event/udp.d source/event/d.d source/event/posix2.d source/event/posix.d source/event/test.d Using FreeBSD KQueue for events Program received signal SIGSEGV, Segmentation fault. 0x0001000d818b in TemplateInstance::findBestMatch(Scope*, Array*) () (gdb) show registers Undefined show command: "registers". Try "help show". (gdb) registers Undefined command: "registers". Try "help". (gdb) info registers rax 0x1093fb750 4450137936 rbx 0x0 0 rcx 0x0 0 rdx 0x7fff5fbfebf0 140734799801328 rsi 0x12048d950 4836612432 rdi 0x0 0 rbp 0x7fff5fbfed60 0x7fff5fbfed60 rsp 0x7fff5fbfecb0 0x7fff5fbfecb0 r8 0x106117660 4396775008 r9 0x7fff5fbfed00 140734799801600 r10 0x7fff5fbfed00 140734799801600 r11 0x1a340b60 439618400 r12 0x0 0 r13 0x1001b14cf 4296742095 r14 0x0 0 r15 0x101a34050 4322443344 rip 0x1000d818b 0x1000d818b Array*)+1339> eflags 0x10246 [ PF ZF IF RF ] cs 0x2b 43 ss ds es fs 0x0 0 gs 0x93f 155123712 (gdb) On 2014-09-22 12:35 PM, Etienne wrote: I'm having issues with DMD returning exit code -11 rather than compiling my project. I have no idea how to debug this, I'm using Mac OS X 10.9.4 with latest git DMD tagged 2.066, and this project: https://github.com/etcimon/event.d When I hit `dub run`, I get the exit code. Not sure why or where the problem comes from, I can't get GDB to run on the mac (something about Mach task port error in gdb), and dmd DEBUG gives no additional info. Any ideas?
Segfault in DMD OSX
I'm having issues with DMD returning exit code -11 rather than compiling my project. I have no idea how to debug this, I'm using Mac OS X 10.9.4 with latest git DMD tagged 2.066, and this project: https://github.com/etcimon/event.d When I hit `dub run`, I get the exit code. Not sure why or where the problem comes from, I can't get GDB to run on the mac (something about Mach task port error in gdb), and dmd DEBUG gives no additional info. Any ideas?
Re: Cannot deduce from type
On Monday, 22 September 2014 at 15:00:09 UTC, anonymous wrote:
On Monday, 22 September 2014 at 14:45:31 UTC, Chris wrote:
Why is that?
import std.stdio, std.array
void main() {
auto output = appender!(string);
output ~= "world!";
// output.data.insertInPlace(0, "Hello, "); // Doesn't work
auto asString = output.data;
asString.insertInPlace(0, "Hello, "); // Works
writeln(asString); // prints "Hello, world!"
}
Error: template std.array.insertInPlace cannot deduce function
from argument types !()(string, int, string), candidates are:
.dvm/compilers/dmd-2.066.0/linux/bin/../../src/phobos/std/array.d(1031):
std.array.insertInPlace(T, U...)(ref T[] array, size_t
pos, U stuff) if (!isSomeString!(T[]) &&
allSatisfy!(isInputRangeOrConvertible!T, U) && U.length > 0)
.dvm/compilers/dmd-2.066.0/linux/bin/../../src/phobos/std/array.d(1097):
std.array.insertInPlace(T, U...)(ref T[] array, size_t
pos, U stuff) if (isSomeString!(T[]) &&
allSatisfy!(isCharOrStringOrDcharRange, U))
output.data is a method returning a string. That is, the
returned
string is not an lvalue, it doesn't have an address, it cannot
be passed in a ref parameter. But insertInPlace's first
parameter
is ref. So, no can do.
I see. Thanks.
Also note that `writeln(output.data);` prints "world!" without
"Hello, ".
Because I only append "world!" to it. You would have to print the
variable "asString" to get "Hello, world!"
Re: Cannot deduce from type
On Monday, 22 September 2014 at 14:45:31 UTC, Chris wrote:
Why is that?
import std.stdio, std.array
void main() {
auto output = appender!(string);
output ~= "world!";
// output.data.insertInPlace(0, "Hello, "); // Doesn't work
auto asString = output.data;
asString.insertInPlace(0, "Hello, "); // Works
writeln(asString); // prints "Hello, world!"
}
Error: template std.array.insertInPlace cannot deduce function
from argument types !()(string, int, string), candidates are:
.dvm/compilers/dmd-2.066.0/linux/bin/../../src/phobos/std/array.d(1031):
std.array.insertInPlace(T, U...)(ref T[] array, size_t
pos, U stuff) if (!isSomeString!(T[]) &&
allSatisfy!(isInputRangeOrConvertible!T, U) && U.length > 0)
.dvm/compilers/dmd-2.066.0/linux/bin/../../src/phobos/std/array.d(1097):
std.array.insertInPlace(T, U...)(ref T[] array, size_t
pos, U stuff) if (isSomeString!(T[]) &&
allSatisfy!(isCharOrStringOrDcharRange, U))
output.data is a method returning a string. That is, the returned
string is not an lvalue, it doesn't have an address, it cannot
be passed in a ref parameter. But insertInPlace's first parameter
is ref. So, no can do.
Also note that `writeln(output.data);` prints "world!" without
"Hello, ".
Cannot deduce from type
Why is that?
import std.stdio, std.array
void main() {
auto output = appender!(string);
output ~= "world!";
// output.data.insertInPlace(0, "Hello, "); // Doesn't work
auto asString = output.data;
asString.insertInPlace(0, "Hello, "); // Works
writeln(asString); // prints "Hello, world!"
}
Error: template std.array.insertInPlace cannot deduce function
from argument types !()(string, int, string), candidates are:
.dvm/compilers/dmd-2.066.0/linux/bin/../../src/phobos/std/array.d(1031):
std.array.insertInPlace(T, U...)(ref T[] array, size_t
pos, U stuff) if (!isSomeString!(T[]) &&
allSatisfy!(isInputRangeOrConvertible!T, U) && U.length > 0)
.dvm/compilers/dmd-2.066.0/linux/bin/../../src/phobos/std/array.d(1097):
std.array.insertInPlace(T, U...)(ref T[] array, size_t
pos, U stuff) if (isSomeString!(T[]) &&
allSatisfy!(isCharOrStringOrDcharRange, U))
Re: parallel foreach hangs
On Monday, 22 September 2014 at 11:25:53 UTC, Daniel Kozak wrote:
this code never end
import std.stdio;
import std.file;
import std.parallelism : parallel;
import std.algorithm : filter;
void main(string[] args)
{
foreach(d; parallel(args[1 .. $], 1))
{
auto phpFiles =
filter!`endsWith(a.name,".php")`(dirEntries(d,SpanMode.depth));
writeln(phpFiles);
}
}
Works for me.
Be aware that dirEntries traverses the whole directory structure
recursively. So when you let it loose on something like root or
your home directory, it may take a while.
If that's not it, try to define a complete test scenario:
directories, files, compiler version, command line for compiling,
command line for running, etc.
Re: how to create and compile reesources for dmd 64
You probably compile resource to compiled resource format. If you compile it to coff, linker should accept it.
Re: How does GC.addRange work?
On 9/21/14 3:00 PM, Gary Willoughby wrote: On Saturday, 20 September 2014 at 23:08:08 UTC, ketmar via Digitalmars-d-learn wrote: On Sat, 20 Sep 2014 22:21:13 + Gary Willoughby via Digitalmars-d-learn wrote: So zeroing values will inform the GC the reference has gone? yes. Thanks, i just wanted to make it clear in my mind. Just to be crystal clear, zeroing values in that range will make the GC able to collect the memory that those values previously pointed at. However, you have to remove the range in order for the GC to ignore that data. In other words, if you zero that memory, the GC will continue to scan those zeros until you GC.removeRange it. -Steve
parallel foreach hangs
this code never end
import std.stdio;
import std.file;
import std.parallelism : parallel;
import std.algorithm : filter;
void main(string[] args)
{
foreach(d; parallel(args[1 .. $], 1))
{
auto phpFiles =
filter!`endsWith(a.name,".php")`(dirEntries(d,SpanMode.depth));
writeln(phpFiles);
}
}
Re: put string[] into a appender without loop?
On Sunday, 21 September 2014 at 23:50:50 UTC, H. S. Teoh via Digitalmars-d-learn wrote: On Sun, Sep 21, 2014 at 11:41:56PM +, AsmMan via Digitalmars-d-learn wrote: I'd like to copy an array string into a appender!string() but I can't see how to do this without loop myself over the string array. Is there a native function or should I write it myself? Try this: import std.array : appender; import std.algorithm : joiner, copy; string[] arr = ["ab", "cd", "efg"]; auto app = appender!string(); arr.joiner.copy(app); assert(app.data == "abcdefg"); T FYI, that's probably scary expensive in terms of encoding/decoding. Using the "free" std.range.put should take care of everything, natively.
Re: Why is amap implemented as a member function of TaskPool?
On Saturday, 20 September 2014 at 06:46:43 UTC, Nordlöw wrote:
On Thursday, 18 September 2014 at 19:49:00 UTC, Atila Neves
wrote:
I had to roll my own parallel map today, but at least I did
get a nice 3x speedup.
Is your own parallel map public somewhere? It would be
interesting to see it.
I just did the simplest, stupidest thing that would work, so it's
probably buggy. It works where I used it (and was faster) so
that's all I needed to know. To even think of releasing this I'd
use atomics instead of the mutex and try to break it in all sorts
of ways. But here it is anyway:
private auto pmap(alias fun, R)(R range) if(isInputRange!R) {
import std.parallelism;
import core.sync.mutex;
static __gshared Mutex mutex;
if(mutex is null) mutex = new Mutex;
typeof(fun(range.front))[] values;
foreach(i, value; range.parallel) {
auto newValue = fun(value);
synchronized(mutex) {
if(values.length < i + 1) values.length = i + 1;
values[i] = newValue;
}
}
return values;
}
Oh, and the reason I don't just append to `values` is that I need
to preserve the original order.
Atila
Re: Why is amap implemented as a member function of TaskPool?
On Saturday, 20 September 2014 at 07:25:45 UTC, Russel Winder via Digitalmars-d-learn wrote: On Sat, 2014-09-20 at 06:46 +, "Nordlöw" via Digitalmars-d-learn wrote: On Thursday, 18 September 2014 at 19:49:00 UTC, Atila Neves wrote: > I had to roll my own parallel map today, but at least I did > get a nice 3x speedup. How many cores? Is the problem a data parallel one and hence should show linear speedup? It depends on the data. I was running analysis on a build dependency graph. It'd depend on the dependency tree topology. I have 4 cores with hyperthreading. 3x speedup seems good to me, especially since the implementation is recursive. Is your own parallel map public somewhere? It would be interesting to see it. Particularly if it can be used to improved the code in std.parallelism. Now that I looked at the bug id referenced above, I don't think it'd help. I can see all sorts of problems with guaranteeing no mutable references are captured by the delegate. Atila
