• GG (10/10) Feb 09 2010 Actually I use an associative array with name as index, to contain diffe...
• Daniel Keep (4/19) Feb 09 2010 Questions like this belong in the d.learn group.
• Steve Teale (2/4) Feb 09 2010 You could try std.boxer, or std.variant.
• GG (2/2) Feb 10 2010 Sorry for posting at wrong place.
• torhu (8/17) Feb 12 2010 Are you sure it's not simpler to just use a struct?
• Daniel Keep (2/10) Feb 12 2010 Bad torhu: never use doubles for currency values!

GG <g g.com> writes:

Actually I use an associative array with name as index, to contain different
data but it allows only string type. It forces me to cast all time.
ex: 
string[char[]][int] a;

a[0]["Month"] = "Jan";
a[0]["Profit"] = to!string(1000); // when I want use this as int, I use :
to!int()
a[0]["Expenses"] = "6000"; // when I want use this as int, I use : to!int()

But as you can see, "Profit" and "Expenses" should be int or double to avoid
cast when I want calculate these fields.

It works with cast but I suppose it's slower than use exact type.

I would like to know if it's possible to have a associative array with multiple
type as a collection with phobos.

Thanks !

Daniel Keep <daniel.keep.lists gmail.com> writes:

GG wrote:
 Actually I use an associative array with name as index, to contain different
data but it allows only string type. It forces me to cast all time.
 ex: 
 string[char[]][int] a;
 
 a[0]["Month"] = "Jan";
 a[0]["Profit"] = to!string(1000); // when I want use this as int, I use :
to!int()
 a[0]["Expenses"] = "6000"; // when I want use this as int, I use : to!int()
 
 But as you can see, "Profit" and "Expenses" should be int or double to avoid
cast when I want calculate these fields.
 
 It works with cast but I suppose it's slower than use exact type.
 
 I would like to know if it's possible to have a associative array with
multiple type as a collection with phobos.
 
 Thanks !

Questions like this belong in the d.learn group.

If you're using D2, you can use Variant.  If you're using D1, and you
don't want to use Tango, there's std.boxer.

Steve Teale <steve.teale britseyeview.com> writes:

On Wed, 10 Feb 2010 01:16:53 -0500, GG wrote:

 I would like to know if it's possible to have a associative array with
 multiple type as a collection with phobos.

You could try std.boxer, or std.variant.

GG <g g.com> writes:

Sorry for posting at wrong place.
And thank you for your responses. I will try it and learn it !

torhu <no spam.invalid> writes:

On 10.02.2010 07:16, GG wrote:
 Actually I use an associative array with name as index, to contain different
data but it allows only string type. It forces me to cast all time.
 ex:
 string[char[]][int] a;

 a[0]["Month"] = "Jan";
 a[0]["Profit"] = to!string(1000); // when I want use this as int, I use :
to!int()
 a[0]["Expenses"] = "6000"; // when I want use this as int, I use : to!int()

 But as you can see, "Profit" and "Expenses" should be int or double to avoid
cast when I want calculate these fields.

 It works with cast but I suppose it's slower than use exact type.

 I would like to know if it's possible to have a associative array with
multiple type as a collection with phobos.

Are you sure it's not simpler to just use a struct?

struct Foo
{
   int month;  // or char[] month, or an enum
   double profit;
   double expenses;
}

Daniel Keep <daniel.keep.lists gmail.com> writes:

torhu wrote:
 ...
 
 struct Foo
 {
   int month;  // or char[] month, or an enum
   double profit;
   double expenses;
 }

Bad torhu: never use doubles for currency values!