On 20/04/12 04:36, Joseph Rushton Wakeling wrote:
On 03/04/12 02:24, Cristi Cobzarenco wrote:
Mixins templates would be the answer:
OK, I've had a go at writing up some mixin template-based policy code of my own.
Oh, fun. You can even have the constructor provided by a template mixin ... !
On 03/04/12 02:24, Cristi Cobzarenco wrote:
Mixins templates would be the answer:
OK, I've had a go at writing up some mixin template-based policy code of my own.
However ... it winds up with compilation errors that I can't decipher:
mixin.d(55): Error: type
On 4/20/12, Joseph Rushton Wakeling joseph.wakel...@webdrake.net wrote:
void main()
{
auto oneOne = MyStruct!(size_t, GenOne, WriteOne);
auto oneTwo = MyStruct!(double, GenOne, WriteTwo);
auto threeOne = MyStruct!(double, GenThree, WriteOne);
auto threeTwo =
On 20/04/12 04:41, Andrej Mitrovic wrote:
You're doing the equivalent of:
auto one = Foo;
but you need:
auto one = Foo();
Ah, clear. I'm an idiot -- I wrote my own constructor requiring a number as
input!
That said, I'm surprised that it accepts the () given that the constructor does
ask
On 4/20/12, Joseph Rushton Wakeling joseph.wakel...@webdrake.net wrote:
That said, I'm surprised that it accepts the () given that the constructor
does
ask for a number.
You can use:
@disable this();
But it doesn't work in all cases:
struct Foo
{
@disable this();
this(int i) { }
}
Thanks to all for the useful suggestions here. I'll have a play with the ideas
suggested and come back if problems arise ... :-)
On 2012-04-03 01:15, Joseph Rushton Wakeling wrote:
Hello all,
I'm coming to D from a background programming in C and C++, though I
wouldn't describe myself as an expert in either.
One of the C++ techniques I picked up over the last couple of years was
the use of policy classes, and I'm
Hello all,
I'm coming to D from a background programming in C and C++, though I wouldn't
describe myself as an expert in either.
One of the C++ techniques I picked up over the last couple of years was the use
of policy classes, and I'm wondering how D addresses this issue of combining
Mixins templates would be the answer:
import std.exception;
mixin template UncheckedIndices( T ) {
ref T opIndex( int i ) {
return this.get_( i );
}
}
mixin template CheckedIndices( T ) {
ref T opIndex( int i ) {
enforce( i 0 i this.size );
return this.get_( i );
}
}
On 3 April 2012 12:24, Cristi Cobzarenco cristi.cobzare...@gmail.com wrote:
Mixins templates would be the answer:
import std.exception;
mixin template UncheckedIndices( T ) {
ref T opIndex( int i ) {
return this.get_( i );
}
}
mixin template CheckedIndices( T ) {
ref T
I'm not all that familiar with policy classes but, if I
understand what you are asking correctly, you can provide
implementations in interfaces if the methods are final or static.
Is this the sort of thing you mean?
import std.stdio;
interface Foo
{
final string foo()
{
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