idup class
trying to follow:
http://ddili.org/ders/d.en/class.html
//--- OSX 10.9 DMD 2.065
module test;
class Foo {
int num;
this(int num) {
this.num = num;
}
Foo dup() const {
return new Foo(this.num);
}
immutable(Foo) idup() const {
return new immutable(Foo)(this.num);
}
}
void main() {
auto foo = new Foo(1);
auto mfoo = foo.dup();
auto ifoo = foo.idup();
}
* test.d(15): Error: mutable method test.Foo.this is not callable
using a immutable object
* test.d(15): Error: no constructor for Foo
* Failed: [dmd, -v, -o-, test.d, -I.]
//---
What am i missing?
Re: idup class
On Friday, 16 May 2014 at 20:36:37 UTC, Ali Çehreli wrote:
My apologies. The code was written for an older version of dmd.
The simplest fix is to define the constructor as pure:
pure this(int num) {
this.num = num;
}
Ali
Ahh great thanks guys.
No worries Ali, great book, i refer to it all the time :)
Re: core.sync.rwmutex example
Hi Charles,
would the following work (just a shot in the dark) ?
//---
module test;
import std.stdio;
import std.concurrency;
void spawnedFuncFoo(Tid tid, Tid tidBar) {
receive(
(int i) {
writeln(Foo Received the number , i);
send(tidBar, i, thisTid);
auto barSuccessful = receiveOnly!(string);
writeln(Bar got my (Foo) message);
}
);
send(tid, true);
}
void spawnedFuncBar(Tid tid) {
receive(
(int i, Tid tidFoo) {
writeln(Foo passed me (Bar) the number , i);
send(tidFoo, done);
}
);
receive(
(string sig) {
writeln(Main says I'm (Bar) done.);
send(tid, 42);
}
);
}
void main() {
auto tidBar = spawn(spawnedFuncBar, thisTid);
auto tidFoo = spawn(spawnedFuncFoo, thisTid, tidBar);
send(tidFoo, 42);
auto fooWasSuccessful = receiveOnly!(bool);
assert(fooWasSuccessful);
send(tidBar, your done);
auto barWasSuccessful = receiveOnly!(int);
assert(barWasSuccessful == 42);
writeln(Successfully had two separate threads communicate
with each other);
}
//---
Atom text editor
FYI: If anyone is using GitHub's text editor Atom and would like basic D syntax highlighting: apm init --package ~/.atom/packages/language-d --convert https://github.com/textmate/d.tmbundle https://atom.io/docs/v0.94.0/converting-a-text-mate-bundle
fedora libcurl-gnutls issue
http://d.puremagic.com/issues/show_bug.cgi?id=10710 Does anyone know if there is there a workaround for this issue? Unfortunately Im stuck with fedora and cant jump to another OS... Thanks
Re: fedora libcurl-gnutls issue
On Friday, 27 September 2013 at 16:52:49 UTC, Dicebot wrote: Simply building dmd/phobos from git tag should result in proper linkage. Nothing is ever simple with me :) Thanks Dejan and Dicebot
shared std.signals
Is it possible to create a shared signal class?
I would like to create a shared signal class so some other
process that knows certain things can come along emit its info to
any observer:
import std.stdio, std.signals;
class Observer {
void watch(string msg) {
writeln(msg);
}
}
class Foo {
string value() {
return _value;
}
string value(string v) {
if (v != _value) {
_value = v;
emit(_value);
}
return v;
}
mixin Signal!(string);
private:
string _value;
}
shared Foo a;
void main() {
a = new shared Foo();
Observer o1 = new Observer();
a.connect(o1.watch);
}
Re: shared std.signals
On Wednesday, 23 January 2013 at 07:11:59 UTC, Joshua Niehus wrote: Is it possible to create a shared signal class? oh god... dont tell me __gshared ! Think i answered my own question, it got me to the next step. going to have to read through those giant shared threads again
Re: Help me write saveAll
On Friday, 21 December 2012 at 17:01:14 UTC, monarch_dodra wrote:
There are a lot of algorithms in std.algorithm that operate on
foo(Range, Needles...)(Range range, Needles needles).
Needles can be anything, in particular, either an element or
a range.
The thing is that every now and then, you want to save the
entirety of (the ranges) inside needles. EG, I want to be able
to write:
foo(range, needles.saveAll);
[...snip...]
Any thought on how do get this working?
size_t r = startsWith!pred(haystack, needles.saveAll);
Sorry if im misunderstanding, but doesn't filter do this?
Example:
import std.stdio, std.algorithm, std.range;
void main() {
auto x = [
[1, 2, 3],
[4, 5, 6],
[7, 8, 9],
[10, 11, 12]
];
//haystack // needle //
needle
auto y = x.filter!(a = (a == [4, 5, 6] || a == [7, 8,
9])).array;
y.writeln;
}
Re: prune with dirEntries
On Friday, 30 November 2012 at 12:02:51 UTC, Dan wrote: Good idea, thanks. I could not get original to compile as is - but the concept is just what was needed. I got an error on line 8: Error: not a property dirEntries(path, cast(SpanMode)0, true).filter!(__lambda2) I'm using a quite recent version of dmd and phobos. hmm strange... I'm using 2.060 (on a mac), But, I pulled the lamda out into a function and it works great. I assume the parallel is for performance, and it actually runs significantly slower than without on my test case - but no work is being done other than build the list of files, so that is probably normal. For my case the breakdown is: No Pruning: 11 sec Pruning Parallel: 4.78 sec Pruning Serial: 0.377 sec Thats cool. Yea I thought parallel would make a big difference (in the positive sense) for large directories, but I guess if we are recursively spawning parallel tasks, the overhead involved starts accumulating, resulting in worse performance (my best guess anyway).
Re: prune with dirEntries
On Friday, 30 November 2012 at 01:57:21 UTC, Dan wrote:
That will do the filtering correctly - but what I was hoping
was to actually prune at the directory level and not drill down
to the files in of an unwanted directory (e.g. .git). The
problem with this and what I'm trying to overcome is accessing
lots of files and directories recursively all of which I want
to skip. Much like there is a *followSymlink* it would be nice
if a predicate were accepted to *followDirectory* in general or
some way to cause that.
what about the following?
import std.algorithm, std.array, std.regex;
import std.stdio, std.file;
void main()
{
auto exclude = regex(r\.git, g);
dirEntries(/path/GIT, SpanMode.breadth)
.filter!(a = match(a.name, exclude).empty)
.writeln();
}
I think if you go breadth first, you can filter out the unwanted
directories before it delves into them
Re: prune with dirEntries
On Friday, 30 November 2012 at 06:29:01 UTC, Joshua Niehus wrote:
I think if you go breadth first, you can filter out the
unwanted directories before it delves into them
oh wait... it probably still looks through all those dir's.
What about this?
import std.algorithm, std.regex, std.stdio, std.file;
import std.parallelism;
DirEntry[] prune(string path, ref DirEntry[] files)
{
auto exclude = regex(r\.git|\.DS_Store, g);
foreach(_path; taskPool.parallel(dirEntries(path,
SpanMode.shallow)
.filter!(a = match(a.name, exclude).empty)))
{
files ~= _path;
if (isDir(_path.name)) { prune(_path.name, files); }
}
return files;
}
void main()
{
DirEntry[] files;
prune(/path, files);
foreach(file;files) { writeln(file.name); }
}
Re: path matching problem
On Tuesday, 27 November 2012 at 19:40:56 UTC, Charles Hixson
wrote:
Is there a better way to do this? (I want to find files that
match any of some extensions and don't match any of several
other strings, or are not in some directories.):
import std.file;
...
string exts = *.{txt,utf8,utf-8,TXT,UTF8,UTF-8};
string[] exclude = [/template/, biblio.txt,
categories.txt,
subjects.txt, /toCDROM/]
int limit = 1
// Iterate a directory in depth
foreach (string name; dirEntries(sDir, exts,
SpanMode.depth))
{ bool excl = false;
foreach (string part; exclude)
{ if (part in name)
{ excl = true;
break;
}
}
if (excl) break;
etc.
maybe this:?
import std.algorithm, std.array, std.regex;
import std.stdio, std.file;
void main()
{
enum string[] exts = [`.txt`, `.utf8`, `.utf-8`,
`.TXT`, `.UTF8`, `.UTF-8`];
enum string exclude =
`r/template/|biblio\.txt|categories\.txt|subjects\.txt|/toCDROM/`;
auto x = dirEntries(/path, SpanMode.depth)
.filter!(`endsWith(a.name,` ~ exts.join(,) ~ `)`)
.filter!(`std.regex.match(a.name,` ~ exclude ~
`).empty`);;
writeln(x);
}
Re: path matching problem
On Tuesday, 27 November 2012 at 23:43:43 UTC, Charles Hixson
wrote:
But why the chained filters, rather than using the option
provided by dirEntries for one of them? Is it faster? Just
the way you usually do things? (Which I accept as a legitimate
answer. I can see that that approach would be more flexible.)
Ignorance...
Your right, I didn't realize that dirEntries had that filter
option, you should use that. I doubt the double .filter would
effect performance at all (might even slow it down for all i know
:)
//update:
import std.algorithm, std.array, std.regex;
import std.stdio, std.file;
void main()
{
string exts = *.{txt,utf8,utf-8,TXT,UTF8,UTF-8};
enum string exclude =
`r/template/|biblio\.txt|categories\.txt|subjects\.txt|/toCDROM/`;
dirEntries(/path, exts, SpanMode.depth)
.filter!(` std.regex.match(a.name,` ~ exclude ~ `).empty `)
.writeln();
}
Re: Converting a number to complex
On Saturday, 24 November 2012 at 07:27:18 UTC, Philippe Sigaud wrote: It's an is() expression (you cited my tutorial, there is an appendix on it). It recently became even more powerful, so the tutorial is not accurate any more. its time for another read through:) Template constraints might make for a good talk at the conf...
Re: Converting a number to complex
On Friday, 23 November 2012 at 12:39:59 UTC, Frederik Vagner
wrote:
Now do it for complex number please ^^
touche!
import std.stdio, std.conv, std.traits, std.complex;
template isComplexNumeric(T)
{
static if(is(NumericTypeOf!T)) {
enum bool isComplexNumeric = is(NumericTypeOf!T);
}
else static if (is(T == Complex!double))
{
enum bool isComplexNumeric = is(Complex!double);
}
// fillin real and float here... (e.g. is(Complex!real);
etc...
}
class Example(T) if (isComplexNumeric!T)
{
T k = to!T(1);
}
void main()
{
auto x = new Example!(Complex!double)();
writeln(x.k);
auto y = new Example!double();
writeln(y.k);
auto z = new Example!string(); // fail
writeln(z.k);
}
A bit messy, but im sure there is some room for cleanup
somewhere...
Re: Converting a number to complex
On Friday, 23 November 2012 at 16:11:25 UTC, Joshua Niehus wrote:
A bit messy, but im sure there is some room for cleanup
somewhere...
Errata... (what i get for copy/pasting)
import std.stdio, std.conv, std.traits, std.complex;
template isComplexNumeric(T)
{
static if(isNumeric!T) {
enum bool isComplexNumeric = true;
}
else static if (is(T == Complex!double))
{
enum bool isComplexNumeric = true;
}
else {
enum bool isComplexNumeric = false;
}
}
class Example(T) if (isComplexNumeric!T)
{
T k = to!T(1);
}
void main()
{
auto x = new Example!(Complex!double)();
writeln(x.k);
auto y = new Example!double();
writeln(y.k);
auto z = new Example!string();
writeln(z.k);
}
i did have to reference Philippe Sigaud's excellent book on
Templates several times:
https://github.com/PhilippeSigaud/D-templates-tutorial/blob/master/dtemplates.pdf
Re: Converting a number to complex
meh, couldn't resist:
import std.stdio, std.conv, std.traits, std.complex;
template isComplex(T)
{
static if (is(T == Complex!double))
{
enum bool isComplex = true;
}
else static if (is(T == Complex!float))
{
enum bool isComplex = true;
}
else static if (is(T == Complex!real))
{
enum bool isComplex = true;
}
else {
enum bool isComplex = false;
}
}
template isComplexOrNumeric(T)
{
enum bool isComplexOrNumeric = (isComplex!T || isNumeric!T);
}
class Example(T) if (isComplexOrNumeric!T)
{
T k = to!T(1);
}
Re: Converting a number to complex
On Friday, 23 November 2012 at 18:45:53 UTC, Artur Skawina wrote:
template isComplex(T) {
static if (is(T _ == Complex!CT, CT))
enum isComplex = true;
else
enum isComplex = false;
}
artur
oh wow didnt know u could do that. much nicer.
Re: Converting a number to complex
On Thursday, 22 November 2012 at 15:47:11 UTC, Frederik Vagner
wrote:
I am trying to make a templated class to accept any numeric
type:
class example(Type) if (isNumeric(Type))
{
Type k = to!Type(1);
}
however I always get a compiler erro stating I cannot make that
conversion. How do I fix it?
// phobos
import std.stdio, std.conv, std.traits;
class Example(T) if (isNumeric!T)
{
T k = to!T(1);
}
void main()
{
auto x = new Example!double();
writeln(x.k);
}
std.concurrency msg passing
Is the following snippet a bug?
---
import core.thread;
import std.stdio, std.concurrency;
void foo(Tid tid) {
send(tid, true);
}
void main() {
auto fooTid = spawn(foo, thisTid);
auto receiveInt = receiveTimeout(dur!seconds(10), (int
isInt) {
writeln(I should not be here);
});
}
// output: I should not be here
---
If not, is there some way I could achieve
receiveOnlyTimeout!(int)(dur, fun); ?
Thanks,
Josh
Re: std.concurrency msg passing
On Thursday, 18 October 2012 at 17:33:04 UTC, cal wrote:
I can't see the bug? The receiver accepts a bool as an int,
same way a normal function does. The timeout is long enough
that foo gets a chance to send. If you want to stop the int
receiver getting a bool, you could add another receiver with
(bool) { // do nothing } or whatever before the (int) one,
which will be a better match for the send.
I got myself into a situation where I dont know which will be
called first, the int or the bool and when the call happens
matters.
It was my assumption that receiveTimeout(dur, (type){}); would
distinguish between a bool and an int like it does for float and
int. But I can see why it would treat true/false as 0/1, so not
a bug.
Anyway my current workaround is to define a few Signal structs
and use those instead:
struct SignalReady { blah }
struct SignalXDone { blah }
struct SignalYDone { blah }
Thanks for the reply.
Re: regex issue
On Friday, 16 March 2012 at 08:34:18 UTC, Dmitry Olshansky wrote: Ehm, because they have different engines that _should_ give identical results. And the default one apparently has a bug, that I'm looking into. Fill the bug report plz. Ok, submitted: id 7718 Thanks, Josh
Re: Compiling DMD on MAC OS X
On Monday, 20 February 2012 at 11:18:34 UTC, Tyro[a.c.edwards] wrote: ... and I doubt you want me to put all of what dmd -v spits out for this little script. Thanks, Andrew Hi Andrew, I ran into this problem as well and here is how I fixed/hacked it: OSX Lion, and soon to be Mountain Lion, no longer come with GCC installed for the Command Line (/usr/bin/gcc) What you need to do is Install Xcode from the app store, which is free, and then: * Launch your Xcode 4.1 * Go to preferences Downloads * Click on the install button near the Command line tools This will put gcc in your /usr/bin directory. Then try to recompile your code. -- the new mac installer on the website should probably come with gcc or check for dependencies Josh
Reflection
Hello,
I dont understand the following snippet's output:
import std.stdio, std.traits;
void main() {
writeln(isSomeFunction!(writeln));
writeln(isCallable!(writeln));
writeln(Yes I am...);
}
/* OUTPUT */
false
false
Yes I am...
If 'writeln' isn't a method/function and it's not callable, then
what is it?
Thanks,
Josh
Re: Reflection
On Tuesday, 28 February 2012 at 06:10:11 UTC, Jesse Phillips wrote: It is a template. I see, thanks. And I bet its not possible to figure out if a template is a function template or a class template etc...
Syntax highlighting for CodeRunner
In the off chance that some of you are running a Mac and using CodeRunner to play around with D, I cooked up the files you need for CodeRunner to highlight D's syntax: https://github.com/jniehus/Dlang-for-CodeRunner
Waiting around
Hello,
I need to connect to a network location and read a file but I also need
some way of waiting around until the connection is established. Currently
I use the following snippet to do this:
while (!std.file.exists(/Volumes/mountedDir/myfile.txt) timeout 30)
{
core.thread.Thread.sleep(10_000_000); // core.thread.Thread
conflicts with std.regex.Thread, hence the full path reference
timeout++;
}
with the recent changes to std.regex it stopped compiling due to the
Thread conflict. Is there a more obvious way to do what I'm doing that
avoids importing core.thread?
Thanks,
Josh
File append limit?
Hello,
I am running a script that creates a file which lists all the folders in a
directory:
foreach (string name; dirEntries(/Users/josh/, SpanMode.shallow)) {
append(/Users/dirList.txt, name ~ \n);
}
But it seems to stop appending after 255 lines (this particular folder has
350 folders in all).
When trying to read the created file:
auto f = File(/Users/dirList.txt, r);
foreach (string line; lines(f)) {
writeln(line);
}
f.close();
It writes out the lines, but after the last one I get Bus error: 10
Any thoughts on what im missing or doing wrong?
I am currently using D 2.054 on Mac OSX Lion
The script was working with D 2.053 on Mac OSX Snow Leopard
Thanks,
Josh
Re: File append Limit
@Kagamin
What if
foreach(i;0..512) {
append(/Users/dirList.txt, text(line ,i,'\n'));
}
That works, but I misrepresented the problem and found that the following
may be the issue (this looks more like the code im using):
import std.conv, std.stdio;
void main()
{
string[] strArr;
foreach(int i; 0 .. 257) {
strArr ~= text(Line: ~ to!string(i));
}
foreach(string e; strArr) {
writeln(e);
}
}
// OUTPUT for first 87 lines
Line: 2
?O
?O
`O
@O
O
?N
?N
...
ect
...
?@
?@
`@
0@
Line: 88
/* rest of output is as expected */
Changing 257 to 256 gives you what you would expect.
Josh
Interfacing to C
Hello,
I was trying to run the example on the Interfacing to C page (
http://www.d-programming-language.org/interfaceToC.html) and ran into few
issues. To get it to work as is i was .dup(ing) strings into new chars
with defined size and passing those with .ptr. Anyway it seemed like quite a
bit of work for something simple so I added const in the signatures and
things worked much more smoothly:
import std.stdio, std.string;
extern (C) int strcmp(const char* string1, const char* string2);
void main()
{
writeln(myDfunction(foo));
}
int myDfunction(const char[] s) {
return strcmp(std.string.toStringz(s), foo);
}
Was there a reason why the consts were left out?
if this is a typo I'd be happy to update the web page, would be good
experience for a noob like me. (never used GIT before and first time
participating in a community)
Thanks,
Josh
RE: dmdscript osx.mak
Hi Robert and Dmitry, Thanks for your replies and the heads up on the current status of DMDScript! Josh
dmdscript osx.mak
Hello, I apologize if this is the wrong forum to post this question, but I couldn't find a corresponding learn mailing list for DMDScript. I wanted to play around with DMDScript but cant seem to get started. I downloaded the source and attempted to make it via: $ make -f osx.mak But I get the following error: textgen.d(132): Error: cannot implicitly convert expression ~ some string ~ of type string to char[] Am I doing the right thing? Or how do I go about getting building 'ds' so I can run simpleton scripts? Josh
Re: dmd vs rdmd
Thanks Jonathan, that cleared things up for me.
Josh
On Sat, Jun 11, 2011 at 12:00 PM, digitalmars-d-learn-requ...@puremagic.com
wrote:
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When replying, please edit your Subject line so it is more specific
than Re: Contents of Digitalmars-d-learn digest...
Today's Topics:
1. dmd vs rdmd (Joshua Niehus)
2. Re: dmd vs rdmd (Jonathan M Davis)
3. Re: dmd vs rdmd (Andrej Mitrovic)
4. char[] to string (Jonathan Sternberg)
5. Re: char[] to string (Jonathan M Davis)
6. Re: DMD Backend: Deciding instructions to use/avoid?
(Nick Sabalausky)
7. Re: char[] to string (bearophile)
--
Message: 1
Date: Fri, 10 Jun 2011 14:28:41 -0700
From: Joshua Niehus jm.nie...@gmail.com
To: digitalmars-d-learn@puremagic.com
Subject: dmd vs rdmd
Message-ID: BANLkTi=TYnN+UuxCr8wj8UwFRjS=ivz...@mail.gmail.com
Content-Type: text/plain; charset=iso-8859-1
Hello,
I am trying to compile code which is composed of two modules (in the same
directory):
main.d
foo.d
foo.d just declares a class Foo which has a string variable bar which i
set to hello and main.d just prints bar's value to the console:
// - main.d ---
import std.stdio, foo;
void main() {
Foo f = new Foo;
writeln(f.bar);
}
When i attempt to compile main.d via:
$dmd main.d
I get undefined symbol errors.
But when I run:
$rdmd main.d
it works as expected.
The only way I could get main.d to compile with just dmd was to compile foo
as a lib first and then compile main.d and passing the foo.a file as an
argument:
$dmd -lib foo.d
$dmd main.d foo.a
Is this normal?
I got the impression from TDPL (Alexandrescu) that the dmd compiler would
automatically search the root directory, find foo.d, work its magic, and
create all the symbols that were defined in foo.d for main.d to compile...
Thanks,
Josh
-- next part --
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--
Message: 2
Date: Fri, 10 Jun 2011 21:50:37 +
From: Jonathan M Davis jmdavisp...@gmx.com
To: digitalmars.D.learn digitalmars-d-learn@puremagic.com
Subject: Re: dmd vs rdmd
Message-ID: 20110610215037.56...@gmx.com
Content-Type: text/plain; charset=utf-8
On 2011-06-10 14:28, Joshua Niehus wrote:
Hello,
I am trying to compile code which is composed of two modules (in the same
directory):
main.d
foo.d
foo.d just declares a class Foo which has a string variable bar which i
set to hello and main.d just prints bar's value to the console:
// - main.d ---
import std.stdio, foo;
void main() {
Foo f = new Foo;
writeln(f.bar);
}
When i attempt to compile main.d via:
$dmd main.d
I get undefined symbol errors.
But when I run:
$rdmd main.d
it works as expected.
The only way I could get main.d to compile with just dmd was to compile
foo
as a lib first and then compile main.d and passing the foo.a file as an
argument:
$dmd -lib foo.d
$dmd main.d foo.a
Is this normal?
I got the impression from TDPL (Alexandrescu) that the dmd compiler would
automatically search the root directory, find foo.d, work its magic, and
create all the symbols that were defined in foo.d for main.d to
compile...
With dmd, you must list every file that you're compiling. The only
exceptions
are that when dealing with libraries, dmd to have the root directory where
the
source is passed to -I, and it needs to have the root directory where the
library is given with -L and -l with the library name (or just the library
directly if you don't want it to search for the library). It's like gcc and
dmc in that respect. It does nothing extra to track down files to compile
for
you. It'll find the source for importing thanks to -I, but it won't compile
it. You must still compile it. You don't normally need -I or -L however,
because dmd.conf (or sc.ini on Windows) already adds the appropriate flags
for
Phobos for you. You only need too specify them yourself when using other
libraries.
rdmd does extra magic to automatically track down all of the files that
main.d
imports and compile them. dmd doesn't do that.
- Jonathan M Davis
--
Message: 3
Date: Sat, 11 Jun 2011 01:08:50 +0200
From: Andrej Mitrovic andrej.mitrov...@gmail.com
To: digitalmars.D.learn digitalmars-d-learn
Re: simple syntax issue with template
I'm trying to create 2 extra method for arrays (range would be
better, though I don't quite understand what is a range)
Although I have some indecipherable (to me) compiler error...
What's wrong with the code below?
==
import std.algorithm;
public:
void remove(T)(ref T[] array, T element)
{
auto index = array.countUntil!(a == b, T[], T)(array, element);
removeAt(index);
}
void removeAt(T)(ref T[] array, sizediff_t index)
{
if(index 0 || index = array.length)
return;
array.replaceInPlace(index, index + 1, []);
}
unittest
{
auto a = [1, 3, 4];
a.remove(3);
assert(a == [1, 4]);
}
==
Hi Lloyd,
why not just use the built in functionality of arrays?
//--
import std.stdio;
void main() {
auto a = [1, 2, 3, 4, 5, 6, 7, 8];
remove(a, 3);
foreach (i; a) {
write(i, );
}
writeln();
}
void remove(T) (ref T[] myarray, int element) {
auto front = myarray[0 .. (element -1)];
auto back = myarray[element .. $];
myarray = front ~ back;
// or simply: myarray = myarray[0 .. (element - 1)] ~ myarray[element ..
$];
}
//--
Josh
dmd vs rdmd
Hello,
I am trying to compile code which is composed of two modules (in the same
directory):
main.d
foo.d
foo.d just declares a class Foo which has a string variable bar which i
set to hello and main.d just prints bar's value to the console:
// - main.d ---
import std.stdio, foo;
void main() {
Foo f = new Foo;
writeln(f.bar);
}
When i attempt to compile main.d via:
$dmd main.d
I get undefined symbol errors.
But when I run:
$rdmd main.d
it works as expected.
The only way I could get main.d to compile with just dmd was to compile foo
as a lib first and then compile main.d and passing the foo.a file as an
argument:
$dmd -lib foo.d
$dmd main.d foo.a
Is this normal?
I got the impression from TDPL (Alexandrescu) that the dmd compiler would
automatically search the root directory, find foo.d, work its magic, and
create all the symbols that were defined in foo.d for main.d to compile...
Thanks,
Josh
