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digitalmars.D.learn - Installing Modules

reply "TJB" <broughtj gmail.com> writes:
All,

I'm very new to D.  I am wanting to install the SciD module 
(David Simcha's fork), but I don't know how to go about it.  Can 
you guide me?

Where does the code go?  How do I import it?

Thanks,

TJB
Mar 28 2012
parent reply "Jesse Phillips" <jessekphillips+D gmail.com> writes:
On Wednesday, 28 March 2012 at 23:55:38 UTC, TJB wrote:

 All,

 I'm very new to D.  I am wanting to install the SciD module 
 (David Simcha's fork), but I don't know how to go about it.  
 Can you guide me?

 Where does the code go?  How do I import it?

 Thanks,

 TJB


There are many ways to go about using modules, I will go over 
installing a module for Linux. Usually the simplest way to get 
started is to pass all files to the compiler (you use an import 
statement to import the modules).

Build SciD as a library.

$ dmd -lib -oflibscid.a all.d files.d for.d SciD.d

Copy lib to /usr/local/lib

Copy sciD source files in the same direcectory structure 
(propably starting with scid/) to /usr/local/src

Installed.

Create a main.d file somewhere:

$ cat main.d
import scid.something;
void main() {}

$ dmd -I/usr/local/src main.d

Windows would be something different, however optlink doesn't 
have a standard set of locations to look for library files. you 
can also pass the library to dmd

$ dmd -I/usr/local/src main.d libscid.a -- If it is in the same 
directory as main.d
Mar 28 2012
parent reply "TJB" <broughtj gmail.com> writes:
On Thursday, 29 March 2012 at 02:07:24 UTC, Jesse Phillips wrote:

 On Wednesday, 28 March 2012 at 23:55:38 UTC, TJB wrote:

 All,

 I'm very new to D.  I am wanting to install the SciD module 
 (David Simcha's fork), but I don't know how to go about it.  
 Can you guide me?

 Where does the code go?  How do I import it?

 Thanks,

 TJB


 There are many ways to go about using modules, I will go over 
 installing a module for Linux. Usually the simplest way to get 
 started is to pass all files to the compiler (you use an import 
 statement to import the modules).

 Build SciD as a library.

 $ dmd -lib -oflibscid.a all.d files.d for.d SciD.d

 Copy lib to /usr/local/lib

 Copy sciD source files in the same direcectory structure 
 (propably starting with scid/) to /usr/local/src

 Installed.

 Create a main.d file somewhere:

 $ cat main.d
 import scid.something;
 void main() {}

 $ dmd -I/usr/local/src main.d

 Windows would be something different, however optlink doesn't 
 have a standard set of locations to look for library files. you 
 can also pass the library to dmd

 $ dmd -I/usr/local/src main.d libscid.a -- If it is in the same 
 directory as main.d


Okay.  I tried this.  I think I am close.  I followed the 
instructions that you gave (thanks btw)!
But, I get this error message:

$ dmd -I/usr/local/src main.d
main.d(1): Error: module scid is in file 'scid.d' which cannot be 
read
import path[0] = /usr/local/src
import path[1] = /Users/name/dmd2/src/phobos
import path[2] = /Users/name/dmd2/src/druntime/import

Thoughts?

Thanks!

TJB
Mar 28 2012
parent reply "Jesse Phillips" <jessekphillips+D gmail.com> writes:
On Thursday, 29 March 2012 at 03:02:27 UTC, TJB wrote:

 Okay.  I tried this.  I think I am close.  I followed the 
 instructions that you gave (thanks btw)!
 But, I get this error message:

 $ dmd -I/usr/local/src main.d
 main.d(1): Error: module scid is in file 'scid.d' which cannot 
 be read
 import path[0] = /usr/local/src
 import path[1] = /Users/name/dmd2/src/phobos
 import path[2] = /Users/name/dmd2/src/druntime/import

 Thoughts?

 Thanks!

 TJB


You don't import scid; as that is just a package, you need a 
module such as:

import scid.matrix;

but it will truely depend on which modules you need for the code 
you are writing.
Mar 28 2012
parent reply "TJB" <broughtj gmail.com> writes:
On Thursday, 29 March 2012 at 04:01:49 UTC, Jesse Phillips wrote:

 On Thursday, 29 March 2012 at 03:02:27 UTC, TJB wrote:

 Okay.  I tried this.  I think I am close.  I followed the 
 instructions that you gave (thanks btw)!
 But, I get this error message:

 $ dmd -I/usr/local/src main.d
 main.d(1): Error: module scid is in file 'scid.d' which cannot 
 be read
 import path[0] = /usr/local/src
 import path[1] = /Users/name/dmd2/src/phobos
 import path[2] = /Users/name/dmd2/src/druntime/import

 Thoughts?

 Thanks!

 TJB


 You don't import scid; as that is just a package, you need a 
 module such as:

 import scid.matrix;

 but it will truely depend on which modules you need for the 
 code you are writing.


Thank you for your patience with me.  I now have the following 
simple test code:

import scid.matrix;

void main() {}

Then I run and get the following error:

$ dmd -I/usr/local/src main.d
Undefined symbols:
   "_D4scid6matrix12__ModuleInfoZ", referenced from:
       _D4main12__ModuleInfoZ in main.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
--- errorlevel 1

Thank you for your help!

TJB
Mar 28 2012
parent reply Johannes Pfau <nospam example.com> writes:
Am Thu, 29 Mar 2012 06:15:07 +0200
schrieb "TJB" <broughtj gmail.com>:


 
 Thank you for your patience with me.  I now have the following 
 simple test code:
 
 import scid.matrix;
 
 void main() {}
 
 Then I run and get the following error:
 
 $ dmd -I/usr/local/src main.d


The command Jesse posted is missing a "-L-lscid" and you'll probably
also need "-L-L/usr/local/lib"
So the complete command should be:

dmd -I/usr/local/src -L-L/usr/local/lib -L-lscid main.d

Here's a short explanation of those flags:
the "-L" prefix tells dmd to ignore this argument and pass it to the
linker(ld). So in our case, "-lscid" and "-L/usr/local/lib" are passed
to the linker. "-l" means link in a library, here 'scid'. The linker
appends the 'lib' prefix and 'a' suffix for you, so it searches for a
'libscid.a' file. "-L" (passed to the linker!) adds a directory to the
library search path. These are the directories which are searched by the
linker when looking for the 'libscid.a' file.
Mar 29 2012
parent reply "Jesse Phillips" <Jessekphillips+D gmail.com> writes:
On Thursday, 29 March 2012 at 08:55:41 UTC, Johannes Pfau wrote:

 The command Jesse posted is missing a "-L-lscid" and you'll 
 probably
 also need "-L-L/usr/local/lib"
 So the complete command should be:


Ah, you are right, though I selected /usr/local/lib as it is 
already part of LD's search path. but asking for the lib is still 
required (-L-lscid).
Mar 29 2012
parent reply "TJB" <broughtj gmail.com> writes:
On Thursday, 29 March 2012 at 15:15:35 UTC, Jesse Phillips wrote:

 On Thursday, 29 March 2012 at 08:55:41 UTC, Johannes Pfau wrote:

 The command Jesse posted is missing a "-L-lscid" and you'll 
 probably
 also need "-L-L/usr/local/lib"
 So the complete command should be:


 Ah, you are right, though I selected /usr/local/lib as it is 
 already part of LD's search path. but asking for the lib is 
 still required (-L-lscid).


Brilliant.  Works perfectly.  Thanks for your help.  You guys are 
awesome!

TJB
Mar 29 2012
parent reply "TJB" <broughtj gmail.com> writes:
On Friday, 30 March 2012 at 00:20:16 UTC, TJB wrote:

 On Thursday, 29 March 2012 at 15:15:35 UTC, Jesse Phillips 
 wrote:

 On Thursday, 29 March 2012 at 08:55:41 UTC, Johannes Pfau 
 wrote:

 The command Jesse posted is missing a "-L-lscid" and you'll 
 probably
 also need "-L-L/usr/local/lib"
 So the complete command should be:


 Ah, you are right, though I selected /usr/local/lib as it is 
 already part of LD's search path. but asking for the lib is 
 still required (-L-lscid).


 Brilliant.  Works perfectly.  Thanks for your help.  You guys 
 are awesome!

 TJB


OK.  I now can compile a simple program that imports a module 
from the SciD library.  How do I do something a little more 
interesting like initialize a vector or matrix and do some linear 
algebra with it?

Thanks so much for your help.  This forum is awesome!

TJB
Apr 13 2012
parent "Jesse Phillips" <jessekphillips+D gmail.com> writes:
On Friday, 13 April 2012 at 23:06:38 UTC, TJB wrote:


 OK.  I now can compile a simple program that imports a module 
 from the SciD library.  How do I do something a little more 
 interesting like initialize a vector or matrix and do some 
 linear algebra with it?

 Thanks so much for your help.  This forum is awesome!

 TJB


I'm not familiar with this library, you'll have to take a look 
through the documentation:

https://github.com/kyllingstad/scid/wiki

I see there is a matrix module
http://www.kyllingen.net/code/scid/doc/scid_matrix.html

import scid.matrix;

void main() {
     auto m = matrix(5, 10);
}

Then go modify its values, and use some linalg functions with it:

http://www.kyllingen.net/code/scid/doc/scid_linalg.html
Apr 13 2012