Re: DUB: How to link an external library on Windows 10?
On 8/27/21 11:43 AM, Ki Rill wrote: On Friday, 27 August 2021 at 15:24:14 UTC, Steven Schveighoffer wrote: I suspect your MSVC installation is bad, or there are some other switches causing problems. Hmm... well, I will use the default setup and think about it later. I mostly use Linux, Windows realm is an uncharted territory for me. Take my diagnoses with a grain of salt -- I mostly use MacOS and Linux, and I'm mostly lost on Windows. I was proficient with Visual C++ 5 or so a long time ago ;) -Steve
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 15:24:14 UTC, Steven Schveighoffer wrote: I suspect your MSVC installation is bad, or there are some other switches causing problems. -Steve Hmm... well, I will use the default setup and think about it later. I mostly use Linux, Windows realm is an uncharted territory for me.
Re: DUB: How to link an external library on Windows 10?
On 8/27/21 11:19 AM, Ki Rill wrote: On Friday, 27 August 2021 at 14:52:15 UTC, Mike Parker wrote: On Friday, 27 August 2021 at 14:46:56 UTC, Ki Rill wrote: On Friday, 27 August 2021 at 13:54:18 UTC, Steven Schveighoffer wrote: [...] How do I tell DUB where to look for `raylibdll.lib` and `raylib.dll`? Via `lflags` section? What if I put them in a different folder instead of the project's directory? Yes. The path goes in the lflags directive using whatever the linker-specific flag is. I assume for lld it's `-Lpath`. For MS link it's `/LIBPATH:path`. To clarify, the .dll file's path is not embedded into the binary. You have to add it's path to your "Path" environment variable in order for your game to load it. But you do need the /LIBPATH option to tell it where to find the .lib file. I've added lfags: ``` "lflags": ["/LIBPATH:C:\\Users\\Username\\Desktop\\test\\source\\"] ``` But now it cannot find the following: ``` msvcrt120.lib OLDNAMES.lib shell32.lib ``` I think `lfags` overrides the default search path and I need to add it manually as well. But what is that path on Windows? That shouldn't happen. I've never had to tell it where the default libraries are. For sure the lflags does NOT override the default library search paths. I suspect your MSVC installation is bad, or there are some other switches causing problems. -Steve
Re: DUB: How to link an external library on Windows 10?
On 8/27/21 10:35 AM, Ki Rill wrote: On Friday, 27 August 2021 at 13:54:18 UTC, Steven Schveighoffer wrote: In the end, I got it to build and run, but I'd highly recommend just linking against the `raylibdll.lib` and using the dll. Steve, thank you! I got it working with `raylibdll.lib`! Yes, either 3.5.0 or 3.7.0, they now build with 2 types of libs, static and dynamic. The raylib.lib file is for static linking, the raylibdll.lib file is for DLL. Glad you got it working! 4. put `raylib.dll` and `raylibdll.lib` into your project's folder (into the same directory, where you have `dub.json`) You know, I taught a class using raylib and D (I learned a lot from your video series, thanks!), and I didn't even think about just copy the libraries to your project directory as a "step". Instead I had them put in the /LIBDIR flags to wherever they installed it. This way is MUCH easier, I think I'll switch to that. dub in general has some rough edges when linking against libraries that aren't in default locations. Having to edit the dub.json file is sub-par. -Steve
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 14:52:15 UTC, Mike Parker wrote: On Friday, 27 August 2021 at 14:46:56 UTC, Ki Rill wrote: On Friday, 27 August 2021 at 13:54:18 UTC, Steven Schveighoffer wrote: [...] How do I tell DUB where to look for `raylibdll.lib` and `raylib.dll`? Via `lflags` section? What if I put them in a different folder instead of the project's directory? Yes. The path goes in the lflags directive using whatever the linker-specific flag is. I assume for lld it's `-Lpath`. For MS link it's `/LIBPATH:path`. I've added lfags: ``` "lflags": ["/LIBPATH:C:\\Users\\Username\\Desktop\\test\\source\\"] ``` But now it cannot find the following: ``` msvcrt120.lib OLDNAMES.lib shell32.lib ``` I think `lfags` overrides the default search path and I need to add it manually as well. But what is that path on Windows?
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 14:46:56 UTC, Ki Rill wrote: On Friday, 27 August 2021 at 13:54:18 UTC, Steven Schveighoffer wrote: [...] How do I tell DUB where to look for `raylibdll.lib` and `raylib.dll`? Via `lflags` section? What if I put them in a different folder instead of the project's directory? Yes. The path goes in the lflags directive using whatever the linker-specific flag is. I assume for lld it's `-Lpath`. For MS link it's `/LIBPATH:path`.
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 13:54:18 UTC, Steven Schveighoffer wrote: [...] How do I tell DUB where to look for `raylibdll.lib` and `raylib.dll`? Via `lflags` section? What if I put them in a different folder instead of the project's directory?
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 13:54:25 UTC, Mike Parker wrote: But assuming you are on a 64-bit system, the DMD will use Visual Studio's linker if you have it installed. If you don't, it will use the lld linker it ships with. Either way, you need to raylib to be compiled with he same version of the MS Build tools so that you don't have conflicts the the vs runtime. Indeed, DMD used the lld linker.
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 13:54:18 UTC, Steven Schveighoffer wrote: In the end, I got it to build and run, but I'd highly recommend just linking against the `raylibdll.lib` and using the dll. -Steve Steve, thank you! I got it working with `raylibdll.lib`! SOLUTION: 1. `dub init` 2. `dub add raylib-d` 3. download `raylib` pre-compiled [binaries](https://github.com/raysan5/raylib/releases) for Microsoft Visual Studio (msvs) 4. put `raylib.dll` and `raylibdll.lib` into your project's folder (into the same directory, where you have `dub.json`) 5. add `"libs":["raylibdll"]` section into dub.json Compile and run. It should work.
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 13:41:56 UTC, Ki Rill wrote: I have downloaded the pre-compiled binaries from the official [Raylib ](https://github.com/raysan5/raylib/releases/tag/3.7.0) repo. I'm not using Visual Studio. Only dub and a text editor. But assuming you are on a 64-bit system, the DMD will use Visual Studio's linker if you have it installed. If you don't, it will use the lld linker it ships with. Either way, you need to raylib to be compiled with he same version of the MS Build tools so that you don't have conflicts the the vs runtime.
Re: DUB: How to link an external library on Windows 10?
On 8/27/21 9:21 AM, Ki Rill wrote:
I have a Raylib project on Windows using DUB. I've added raylib-d via
`dub add`. But what I can't figure out is how to tell DUB to link
against raylib library.
I have the following project structure:
```
-> source
---> app.d
-> libraylib.a
-> raylib.dll
-> etc...
```
I'd like to use either .a or .dll. Do you have any ideas?
I spent a lot of time trying to figure this out (someone in discord
really wanted to link statically for some reason). I FINALLY got a
statically linked exe, but it's not worth the effort. I had to:
1. update my msvc build tools to match what was used for the official
release (alternatively, you can rebuild the raylib library with your
tools, otherwise you get cryptic errors like `fatal error C1900: Il
mismatch between 'P1' version '20210113' and 'P2' version '20190715'`).
2. pass in cryptic linker options like `/NODEFAULTLIB:libcmt`, etc.
3. Link against extra libraries until the linker errors disappear
(google search for missing symbols to see what libraries those symbols
are in).
My eventual resulting dub.json looked like (you can guess where I put
things):
```json
{
"name": "rps-explosion",
"dependencies": {
"jsoniopipe": "~>0.1.3",
"enet-d": "~>0.0.1",
"raylib-d": "~>3.1.0"
},
"libs": ["enet", "raylib", "ws2_32", "winmm", "msvcrt", "user32",
"gdi32"],
"lflags": ["/LIBPATH:C:\\dprojects\\enet-1.3.17",
"/LIBPATH:C:\\dprojects\\raylib-3.7.0_win64_msvc16\\lib",
"/NODEFAULTLIB:libcmt", "/NODEFAULTLIB:libvcruntime"]
}
```
This config also included `enet-d` so some of the linker options are for
that lib.
In the end, I got it to build and run, but I'd highly recommend just
linking against the `raylibdll.lib` and using the dll.
-Steve
Re: A way to mixin during runtime?
On 8/27/21 6:34 AM, Kirill wrote:
On Friday, 27 August 2021 at 09:51:46 UTC, Mathias LANG wrote:
On Friday, 27 August 2021 at 06:52:10 UTC, Kirill wrote:
Is there a way to do mixin or similar during runtime?
I'm trying to read a csv file and extract data types. Any ideas on
how this should be approached in D are greatly appreciated.
You cannot mixin at runtime. However, it is fairly easy to map a
finite and CT-know set of argument to runtime arguments via `static
foreach`.
Could you give us example of the content of your CSV file and what you
are trying to do ?
Each csv file will be different.
For example:
```
name;surname;age;grade
Alex;Wong;18;87
John;Doe;19;65
Alice;Doe;18;73
etc...
```
I'd like to extract the data types automatically. For instance, if using
tuples:
```
Tuple!(string, string, int, int) ...
```
instead I'd like to have:
```
auto mytuple = read_csv(path); // returns Tuple!(string, string, int,
int)[]
```
So you can't build "new types" at runtime that are usable after your
code is compiled. But there are options:
1. You can parse the CSV at compile-time using `import("types.csv");`
and then processing the resulting string using CTFE (not sure if std.csv
does this, but I'd expect it to). Then you can use the resulting thing
to generate string mixins that can generate types. This has the drawback
that you need to recompile when your csv input changes.
2. You can create a dynamic type that deals with the CSV data. It looks
from your CSV data you are inferring the "type" from the data itself,
which is complex in itself. In this case, you'd use it kind of like a
JSON object, where you index the fields by name instead of using
`obj.name`, and you'd have to extract the type dynamically from the type
inference you'd have to write. This is pretty much what std.csv does,
though you can dress it up a bit more.
Without the CSV telling you types, it's hard to make something "easy". I
have written code that extracts from JSON data and database data
serializable struct types, and builds a D file, but it's never
clean-cut, and sometimes you have to hand-edit that stuff. This is about
as "easy" as it gets, just have the computer do most of the heavy
lifting, and then massage it into something usable.
-Steve
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 13:33:25 UTC, Mike Parker wrote: On Friday, 27 August 2021 at 13:21:04 UTC, Ki Rill wrote: I have a Raylib project on Windows using DUB. I've added raylib-d via `dub add`. But what I can't figure out is how to tell DUB to link against raylib library. I have the following project structure: ``` -> source ---> app.d -> libraylib.a -> raylib.dll -> etc... ``` I'd like to use either .a or .dll. Do you have any ideas? raylib.a isn't going to get you anywhere. You'll run into issues mixing MinGW-compiled libraries. If raylib doesn't ship precompiled VS binaries, then, assuming you have Visual Studio (or the MS Build tools) installed, you should compile Raylib with that same version. Then you'll have a new raylib.dll and a raylib.lib. Add raylib.lib to your dub config via the "libs" directive. I have downloaded the pre-compiled binaries from the official [Raylib ](https://github.com/raysan5/raylib/releases/tag/3.7.0) repo. I'm not using Visual Studio. Only dub and a text editor.
Re: A little help with Ranges
On 8/27/21 12:41 AM, Merlin Diavova wrote:
On Friday, 27 August 2021 at 04:01:19 UTC, Ali Çehreli wrote:
On 8/26/21 7:17 PM, Merlin Diavova wrote:
[...]
Then the operations downstream will not produce any results. For
example, the array will be empty below:
import std.stdio;
import std.range;
import std.algorithm;
import std.string;
import std.functional;
void main() {
auto significantLines = stdin
.byLineCopy
.map!strip
.filter!(not!empty)
.filter!(line => line.front != '#')
.array;
if (significantLines.empty) {
writeln("There were no significant lines.");
} else {
writefln!"The lines: %-(\n%s%)"(significantLines);
}
}
Ali
And there it is!
I was missing
```d
.filter!(not!empty)
```
My code now works exactly how I wanted. Thanks!
Be careful with this! `not!empty` is *only* working because you are
using arrays (where `empty` is a UFCS function defined in std.range).
Other ranges this will not work on. Instead, I would recommend a lambda
(which will work with arrays too):
```d
.filter!(r => !r.empty)
```
-Steve
Re: DUB: How to link an external library on Windows 10?
On Friday, 27 August 2021 at 13:21:04 UTC, Ki Rill wrote: I have a Raylib project on Windows using DUB. I've added raylib-d via `dub add`. But what I can't figure out is how to tell DUB to link against raylib library. I have the following project structure: ``` -> source ---> app.d -> libraylib.a -> raylib.dll -> etc... ``` I'd like to use either .a or .dll. Do you have any ideas? raylib.a isn't going to get you anywhere. You'll run into issues mixing MinGW-compiled libraries. If raylib doesn't ship precompiled VS binaries, then, assuming you have Visual Studio (or the MS Build tools) installed, you should compile Raylib with that same version. Then you'll have a new raylib.dll and a raylib.lib. Add raylib.lib to your dub config via the "libs" directive.
DUB: How to link an external library on Windows 10?
I have a Raylib project on Windows using DUB. I've added raylib-d via `dub add`. But what I can't figure out is how to tell DUB to link against raylib library. I have the following project structure: ``` -> source ---> app.d -> libraylib.a -> raylib.dll -> etc... ``` I'd like to use either .a or .dll. Do you have any ideas?
Re: A way to mixin during runtime?
On Friday, 27 August 2021 at 10:34:27 UTC, Kirill wrote: Each csv file will be different. For example: ``` name;surname;age;grade Alex;Wong;18;87 John;Doe;19;65 Alice;Doe;18;73 etc... ``` I'd like to extract the data types automatically. For instance, if using tuples: ``` Tuple!(string, string, int, int) ... ``` instead I'd like to have: ``` auto mytuple = read_csv(path); // returns Tuple!(string, string, int, int)[] ``` mytuple needs to have a type that's known at compile-time, so this isn't possible. In the types are only dynamically known, then you have to deal in dynamic types. One way could be to have a read_csv that returns an array of https://dlang.org/phobos/std_variant.html
Re: A way to mixin during runtime?
On Friday, 27 August 2021 at 09:51:46 UTC, Mathias LANG wrote: On Friday, 27 August 2021 at 06:52:10 UTC, Kirill wrote: Is there a way to do mixin or similar during runtime? I'm trying to read a csv file and extract data types. Any ideas on how this should be approached in D are greatly appreciated. You cannot mixin at runtime. However, it is fairly easy to map a finite and CT-know set of argument to runtime arguments via `static foreach`. Could you give us example of the content of your CSV file and what you are trying to do ? Each csv file will be different. For example: ``` name;surname;age;grade Alex;Wong;18;87 John;Doe;19;65 Alice;Doe;18;73 etc... ``` I'd like to extract the data types automatically. For instance, if using tuples: ``` Tuple!(string, string, int, int) ... ``` instead I'd like to have: ``` auto mytuple = read_csv(path); // returns Tuple!(string, string, int, int)[] ```
Re: A way to mixin during runtime?
On Friday, 27 August 2021 at 06:52:10 UTC, Kirill wrote: Is there a way to do mixin or similar during runtime? I'm trying to read a csv file and extract data types. Any ideas on how this should be approached in D are greatly appreciated. You cannot mixin at runtime. However, it is fairly easy to map a finite and CT-know set of argument to runtime arguments via `static foreach`. Could you give us example of the content of your CSV file and what you are trying to do ?
Re: A way to mixin during runtime?
On Friday, 27 August 2021 at 06:52:10 UTC, Kirill wrote: Is there a way to do mixin or similar during runtime? I'm trying to read a csv file and extract data types. Any ideas on how this should be approached in D are greatly appreciated. remember D is a statically compiled language, `mixin` is for generating code, so, it won't work except you have a runtime code parser. you may need a scripting language embedded in your D app to achieve this. thx.
A way to mixin during runtime?
Is there a way to do mixin or similar during runtime? I'm trying to read a csv file and extract data types. Any ideas on how this should be approached in D are greatly appreciated.
