• Chuck.Esterbrook /at/ gmail /dot/ com (17/17) Aug 15 2005 Suppose I have a class template like so:
• Victor Nakoryakov (19/43) Aug 15 2005 You can use .toString() even for primitive types. Just define function:
• Ben Hinkle (7/43) Aug 15 2005 I couldn't get this to work. Plus I'd actually consider it a compiler bu...
• Victor Nakoryakov (20/55) Aug 15 2005 Hmm... Really, it does not compile :) I'm sorry for unchecked sample. I
• Chuck.Esterbrook /at/ gmail /dot/ com (11/22) Aug 15 2005 It looks like the only toString() overload missing in std.string is one ...
• Victor Nakoryakov (6/12) Aug 15 2005 As one of variants.
• Chris Sauls (22/36) Aug 15 2005 Can std.string.format() be used for this? Something like:

Chuck.Esterbrook /at/ gmail /dot/ com <Chuck.Esterbrook_member pathlink.com> writes:

Suppose I have a class template like so:









I thought about using .toString() but that does not work if A and B are
primitive types like int.

Any suggestions? Is there already a nifty library around along the lines of:







-Chuck

Victor Nakoryakov <nail-mail mail.ru> writes:

Chuck.Esterbrook /at/ gmail /dot/ com wrote:
 Suppose I have a class template like so:
 







 
 I thought about using .toString() but that does not work if A and B are
 primitive types like int.
 

You can use .toString() even for primitive types. Just define function:

char[] toString(int x)
{
   ...
}

after that you can write

int myint = 65;
char[] str = myint.toString();


BTW: toSting()'s of basic types are already implemented in std.string. 
So you should do following:

import std.string;
alias toString std.string.toString();

<your magic here>

to get expected result.

 Any suggestions? Is there already a nifty library around along the lines of:
 





 
 -Chuck
 
 


-- 
Victor (aka nail) Nakoryakov
nail-mail<at>mail<dot>ru

Krasnoznamensk, Moscow, Russia

"Ben Hinkle" <bhinkle mathworks.com> writes:

"Victor Nakoryakov" <nail-mail mail.ru> wrote in message 
news:ddpt88$nts$1 digitaldaemon.com...
 Chuck.Esterbrook /at/ gmail /dot/ com wrote:
 Suppose I have a class template like so:









 I thought about using .toString() but that does not work if A and B are
 primitive types like int.

 You can use .toString() even for primitive types. Just define function:

 char[] toString(int x)
 {
   ...
 }

 after that you can write

 int myint = 65;
 char[] str = myint.toString();

I couldn't get this to work. Plus I'd actually consider it a compiler bug if 
it did work.

 BTW: toSting()'s of basic types are already implemented in std.string. So 
 you should do following:

 import std.string;
 alias toString std.string.toString();

 <your magic here>

 to get expected result.

 Any suggestions? Is there already a nifty library around along the lines 
 of:








There isn't any template that will work for arbitrary types. For classes 
Object.toString is the most generic hook. For a struct I'd define a toString 
method. Otherwise you'll have to use overloading like in std.string. 

Victor Nakoryakov <nail-mail mail.ru> writes:

Ben Hinkle wrote:
 "Victor Nakoryakov" <nail-mail mail.ru> wrote in message 
 news:ddpt88$nts$1 digitaldaemon.com...
 
Chuck.Esterbrook /at/ gmail /dot/ com wrote:

Suppose I have a class template like so:









I thought about using .toString() but that does not work if A and B are
primitive types like int.

You can use .toString() even for primitive types. Just define function:

char[] toString(int x)
{
  ...
}

after that you can write

int myint = 65;
char[] str = myint.toString();

 
 
 I couldn't get this to work. Plus I'd actually consider it a compiler bug if 
 it did work.
 

Hmm... Really, it does not compile :) I'm sorry for unchecked sample. I 
thought I used such constructions many many times but in practice this 
was functions for char[]. Plus I'm consider this would _not_ a bug if 
compiler would accept this.

In this case the one thing that came up into my mind is to use:

static if (is(A == int) || is(A == uint) || [basic types])
{
	writefln(std.string.toString(a));
}
else
{
	writefln(a.toString);
}

It was just draft. In practice code can be simplified to look more 
esthetically.

-- 
Victor (aka nail) Nakoryakov
nail-mail<at>mail<dot>ru

Krasnoznamensk, Moscow, Russia

Chuck.Esterbrook /at/ gmail /dot/ com <Chuck.Esterbrook_member pathlink.com> writes:

In article <ddq7t3$10vk$1 digitaldaemon.com>, Victor Nakoryakov says...
[snip]
In this case the one thing that came up into my mind is to use:

static if (is(A == int) || is(A == uint) || [basic types])
{
	writefln(std.string.toString(a));
}
else
{
	writefln(a.toString);
}

It was just draft. In practice code can be simplified to look more 
esthetically.

It looks like the only toString() overload missing in std.string is one for
object. So if we added:





It seems to me that templates could then simply say:


and they would work for both primitives and objects. Right?


-Chuck

Victor Nakoryakov <nail-mail mail.ru> writes:

Chuck.Esterbrook /at/ gmail /dot/ com wrote:
 
 It seems to me that templates could then simply say:

 
 and they would work for both primitives and objects. Right?
 

As one of variants.

-- 
Victor (aka nail) Nakoryakov
nail-mail<at>mail<dot>ru

Krasnoznamensk, Moscow, Russia

Chris Sauls <ibisbasenji gmail.com> writes:

Chuck.Esterbrook /at/ gmail /dot/ com wrote:
 Suppose I have a class template like so:
 







 
 I thought about using .toString() but that does not work if A and B are
 primitive types like int.
 
 Any suggestions? Is there already a nifty library around along the lines of:

Can std.string.format() be used for this?  Something like:





















-- Chris Sauls