Re: How polymorphism work in D?
On Wednesday, 6 November 2019 at 06:05:25 UTC, rikki cattermole
wrote:
On 06/11/2019 6:43 PM, OiseuKodeur wrote:
I have this
```
import std.stdio : writeln;
abstract class Foo { }
class Bar : Foo
{
float value;
this(float t_value) { value = t_value; }
}
class Baz : Foo
{
string name;
this(string t_name) { name = t_name; }
}
void main()
{
Foo foo = new Bar(10);
if (/* typeof foo == Bar */)
if (Bar bar = cast(Bar)foo)
bar.value.writeln;
foo.value.writeln;
else if (/* typeof foo == Baz */)
else if (Baz baz = cast(Baz)foo)
baz.name.writeln;
foo.name.writeln;
foo.writeln;
}
```
I don't understand how i can differentiate between Bar and Baz
and to get their attributes
thanks a lot
How polymorphism work in D?
I have this
```
import std.stdio : writeln;
abstract class Foo { }
class Bar : Foo
{
float value;
this(float t_value) { value = t_value; }
}
class Baz : Foo
{
string name;
this(string t_name) { name = t_name; }
}
void main()
{
Foo foo = new Bar(10);
if (/* typeof foo == Bar */)
foo.value.writeln;
else if (/* typeof foo == Baz */)
foo.name.writeln;
foo.writeln;
}
```
I don't understand how i can differentiate between Bar and Baz
and to get their attributes
Re: dub build doesn't work
BTW if you prefer using optlink and the digitalmars C runtime, you can instruct dub to do so with: --arch=x86 how can i add --arch=x86 flag to the dub.json so it do it automatically ?
Re: dub build doesn't work
On Wednesday, 23 October 2019 at 22:06:28 UTC, SrMordred wrote: On Tuesday, 22 October 2019 at 22:14:02 UTC, OiseuKodeur wrote: Hello, i am having a problem with dub build with this project https://github.com/OiseauKodeur/cervelet/tree/master/source when i try to compile everything go well but when i click to run the .exe it give my an error missing msvcr100.dll, but with rdmd the program run fine I got into this recently too. I have the latest VS and redistributable packages installed and was unable to find msvcr100.dll too. Which is very odd. Lucky I found it on another software installed on my PC. which software ?
Re: dub build doesn't work
On Wednesday, 23 October 2019 at 18:37:10 UTC, kinke wrote: On Wednesday, 23 October 2019 at 16:55:37 UTC, OiseuKodeur wrote: On Wednesday, 23 October 2019 at 06:40:47 UTC, Seb wrote: You won't need Visual Studio for this, but something which ships msvcr100.dll. So sth. like this should be enough: https://www.microsoft.com/en-us/download/details.aspx?id= even when i installed the latest vcredist_x86 it doesn't work You don't need the *latest* VC runtime (2019), but 2010, i.e., Seb's link. For DMD that is, LDC should be fine with the latest one. Yes that's the one i downloaded
Re: dub build doesn't work
On Wednesday, 23 October 2019 at 06:40:47 UTC, Seb wrote: On Tuesday, 22 October 2019 at 22:14:02 UTC, OiseuKodeur wrote: Hello, i am having a problem with dub build with this project https://github.com/OiseauKodeur/cervelet/tree/master/source when i try to compile everything go well but when i click to run the .exe it give my an error missing msvcr100.dll, but with rdmd the program run fine Did you try compiling with LDC? Their Windows support is better maintained. Anyhow, so what's happening is that dmd by default uses the digitalmars C runtime (32-bit only) whereas dub will use the llvm linker (64-bit) by default. Now llvm's linker searches for the Microsoft C runtime and can't find it. Hence, the error which you're receiving. You won't need Visual Studio for this, but something which ships msvcr100.dll. So sth. like this should be enough: https://www.microsoft.com/en-us/download/details.aspx?id= BTW if you prefer using optlink and the digitalmars C runtime, you can instruct dub to do so with: --arch=x86 even when i installed the latest vcredist_x86 it doesn't work, but using --arch=x86 it works, but only when i don't include dlangui in the dub.json, it give me another error https://i.imgur.com/f1Rvlg1.png (app.d line 21 "code = stdin.readln();" and line 7 is "void main(string[] arguments)"), so i maybe need to find a new gui library, and thanks now at least i can compile.
dub build doesn't work
Hello, i am having a problem with dub build with this project https://github.com/OiseauKodeur/cervelet/tree/master/source when i try to compile everything go well but when i click to run the .exe it give my an error missing msvcr100.dll, but with rdmd the program run fine
