BCS Wrote:
> IIRC zero filling a block is likely cheaper that zero filling holes in it.
> I'd avoid "=void" unless you know you will be copying structs into the space
> (that will copy the holes as well).
And unless you will never compare the struct, as the garbage bits will also be
compared.
I
Hello Strtr,
Suppose I'd still would like to use void optimizations, how do you
clear the holes manually?
IIRC zero filling a block is likely cheaper that zero filling holes in it.
I'd avoid "=void" unless you know you will be copying structs into the space
(that will copy the holes as well
bearophile Wrote:
> strtr:
>
> > I suspect this isn't the case for void initialization; if my struct has
> > some alignment hole I better not void initialize it if ever I want to
> > compare it with something.
> > Is this correct?
>
> That has to be correct.
Might this be worth an explicit men
Hello Strtr,
BCS Wrote:
Hello Strtr,
Would you ever have an alignment hole if all the struct contains are
basic types(excluding bool)?
real, char[n], byte[n] and short[m] (for n%4 != 0 and m%2 != 0) might
be an issue.
Sounds logical, thanks!
I don't actually *know* those will be a pro
BCS Wrote:
> Hello Strtr,
>
> > Would you ever have an alignment hole if all the struct contains are
> > basic types(excluding bool)?
>
> real, char[n], byte[n] and short[m] (for n%4 != 0 and m%2 != 0) might be
> an issue.
>
Sounds logical, thanks!
Hello Strtr,
Would you ever have an alignment hole if all the struct contains are
basic types(excluding bool)?
real, char[n], byte[n] and short[m] (for n%4 != 0 and m%2 != 0) might be
an issue.
--
... <
strtr:
> I suspect this isn't the case for void initialization; if my struct has some
> alignment hole I better not void initialize it if ever I want to compare it
> with somthing.
> Is this correct?
That has to be correct.
> Would you ever have an alignment hole if all the struct contains ar
This is probably going a bit above my head, but
"the existence of alignment holes in the objects is accounted for, usually by
setting them all to 0 upon initialization"
I suspect this isn't the case for void initialization; if my struct has some
alignment hole I better not void initialize it if
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Trass3r wrote:
>> Cast the instance to the base class and call the method?
>>
>
> Surprisingly this does compile.
> What are the rules for casting between classes?
I don't think there are any rules as such.
Casting in D is not well specified.
Betwe
> Cast the instance to the base class and call the method?
>
Surprisingly this does compile.
What are the rules for casting between classes?
Good range documentation comes from:
http://digitalmars.com/d/2.0/phobos/std_range.html
foreach only requires an Input Range.
"Lars T. Kyllingstad" wrote in message
news:hmnu5l$31j...@digitalmars.com...
>
> 3. It's sometimes unclear which symbols are members of a class/struct
> and which are module-level symbols. Tango's API documentation is better
> in this regard, since it has the symbol tree on the left-hand sid
On 3/5/10 21:04, bearophile wrote:
This D2 program compiles and works correctly:
import std.c.stdio: printf;
auto add(T1, T2)(T1 x, T2 y) {
if (!is(T1 == T2))
printf("Different types\n");
return x + y;
}
void main() {}
But do you know why D2 needs that is() there? Can't it b
On 3/6/10 13:39, Trass3r wrote:
I got 2 classes which both (indirectly) inherit from a common base class and
implement a certain interface I.
Now I need to pass that interface to a function and need to call a function
inherited from the base class inside.
Naturally that function is not presen
div0:
> Yeah, I *never* access static vars through an instance,
> I always use the class name.
>
> Somebody want to post in the main group?
It seems there are few people that agree with you, but Walter has not answered
about this yet, so you can ask him his opinion. I like to use a tidy language
Trass3r:
> I got 2 classes which both (indirectly) inherit from a common base class and
> implement a certain interface I.
When possible show an example. You can fill/fix the following code to create an
example of your problem:
interface IFoo {
void foo();
}
class Base {
void foo() {}
I got 2 classes which both (indirectly) inherit from a common base class and
implement a certain interface I.
Now I need to pass that interface to a function and need to call a function
inherited from the base class inside.
Naturally that function is not present in the interface and thus can't
Lars T. Kyllingstad wrote:
Michael Rynn wrote:
On the D2 online pages
(http://www.digitalmars.com/d/2.0/statement.html#ForeachStatement)there
is
Foreach over Structs and Classes with Ranges
My question is , is there a working example of foreach ( e ; range )?
Iteration over struct and cla
Michael Rynn wrote:
On the D2 online pages
(http://www.digitalmars.com/d/2.0/statement.html#ForeachStatement)there
is
Foreach over Structs and Classes with Ranges
My question is , is there a working example of foreach ( e ; range )?
Iteration over struct and class objects can be done wit
On the D2 online pages
(http://www.digitalmars.com/d/2.0/statement.html#ForeachStatement)there
is
Foreach over Structs and Classes with Ranges
My question is , is there a working example of foreach ( e ; range )?
Iteration over struct and class objects can be done with ranges, which
means
20 matches
Mail list logo
