bearophile wrote:
Frits van Bommel:
LDC actually still does a dynamic allocation there because it doesn't eliminate
dynamic allocations in loops.
I have compiled the loop in foo() with LDC:
[snip]
scope auto item = new AllocationItem(i);
[snip]
The asm of the core of the
bearophile wrote:
Rainer Deyke:
D's performance is unexpectedly bad, so much that I expect that it might be using
dynamic memory allocation anyway despite the 'scope' keyword. Java is clever in
that it eliminates unnecessary dynamic memory allocations automatically.<
I think Java here is doi
Ellery Newcomer wrote:
what is the purpose of the expression grammar
Expression:
AssignExpression
AssignExpression , Expression
?
(emphasis on the comma)
To allow two expressions separated by a comma to be another expression. This is
only useful if the expression before the
BCS wrote:
Are there any cases where the following cases both compile but are not
identical?
A a;
B b;
a = b;
a.Foo();
and
A a;
B b;
a = b;
b.Foo();
struct A {
int i;
void Foo() { i = 42; }
}
alias A B;
The first case will set a.i to 42, the second will set b.i.
And with op
MikeWh wrote:
I have 2 files: 1. a main file called caller.d, 2. a file to import called
sub.d. They are:
// caller.d
import sub;
import std.stdio;
void main(){
sub mySub= new sub;
writefln( mySub.one() );
}
// sub.d
class sub{
int one(){
return 1;
}
}
Ev
Nick Sabalausky wrote:
Can anyone think of a
reasonable case where it would actually make sense to override opCmp, but
not opEquals? (that is, without bastardizing them like in a "C++ streams"
kind of way)
How about a struct you want to be opCmp()-comparable (which, according to the
spec, t
Michael P. wrote:
But when I type dmd in the terminal, I get this:
mich...@ubuntu:~$ dmd
bash: /usr/local/bin/dmd: Permission denied
mich...@ubuntu:~$
Do you know why?
Looks like you didn't "chmod +x" it. Zip files don't store *nix permissions...
Unknown W. Brackets wrote:
In the case of arrays, "test == null" and "test
is null" should be the same operation.
They're not the same operation. (Though there was quite a large debate on these
newsgroups a while back because a lot of people thought they *should* be, as you
said)
The differ
TSalm wrote:
Hello,
In the code below, why the first Stdout throws a Exception when the
second doesn't ?
/* CODE */
import tango.io.Stdout;
struct VoidPtr(T)
{
void* vPtr;
void value(T val)
{
vPtr = &val;
Here you're storing a pointer to a non-ref parameter
Mike Parker wrote:
Heinz wrote:
torhu Wrote:
On 10.02.2009 19:51, Heinz wrote:
Heinz Wrote:
I attached a rar file with the sources just to see what i'm talking
about. The example is from the DMD site. Included is the extern D
(ok) and the extern C (fails). To compile open "compile.bat" and
Zarathustra wrote:
I need to make some calculations with asm in D.
Could somebody write how to do this, micro tutorial ;p
x86
Especially inc, dec, add, sub, mul, imul, div, idiv instructions.
Also ja, jb, jg, jl, jo; jc ...
and, or, not, xor,
sal, shl, sar, shr
First of all: unless you really n
bearophile wrote:
westcity Wrote:
But, the compiler report "Error: array initializers as expressions are not
allowed".
Then, how do I initialize an array of struct ?
Move the definition out of main (note that ; after the struct isn't required):
struct Point {
float x, y, z;
}
Point[3]
westcity wrote:
My code is as following:
struct Point {
float x, y, z ;
};
int main ()
{
Point[3] pts = [
{1.0, 0.0, 0.0} ,
{0.0, 1.0, 0.0} ,
{0.0, 0.0, 1.0}
];
return 0 ;
}
But, the compiler report "Error: array
Qian Xu wrote:
Hi All,
I want to test, if two objects are equal.
The rules are as follows:
1. When both are null, it should return true.
2. When one of them is null, it should return false.
3. When both not null, then compare their values (as two strings)
((a is b) || (a && a == b))
Note
Denis Koroskin wrote:
On Thu, 22 Jan 2009 11:17:20 +0300, Qian Xu
wrote:
how to get the implementer of an interface?
[snip]
Try the following:
writefln(cast(Object)i);
Or
writefln((cast(Object)i).classinfo.name);
if you want the class name, not the result of toString (which is only
Qian Xu wrote:
Hi All,
can D check, whether a class A an Interface B supports?
like:
if (supports(class_A, intf_B))
if (is(class_A : intf_B))
tests if 'class_A' is implicitly convertible to 'intf_B'. If the first
is a class and the second an interface, that's equivalent to the class
Weed wrote:
In C++, we had the problem - "slicing" objects.
In D this problem is solved inability to inherit from structs.
Without inheritance of structs many things are not possible, compared
with C++.
Why, instead of the complete inability to inherit, just do not make
impossible to up casting
Zoran Isailovski wrote:
I'm an experienced C#, Java and Python programmer, and have employed closures
(and C# delegates) upon numerous occasions. While experimenting with D closures
and delegates, I was stroke by a phenomenon I cannot explain. Here's the code:
[snip]
Handler incBy(int n)
{
Christopher Wright wrote:
Jarrett Billingsley wrote:
On Sun, Nov 9, 2008 at 10:18 PM, James <[EMAIL PROTECTED]> wrote:
i created to include file, 1 with 'module xxx' declaration and the
other without it. but i still can import both files. what is the diff
here?
Not a lot. The module decla
Jarrett Billingsley wrote:
On Sun, Nov 9, 2008 at 10:18 PM, James <[EMAIL PROTECTED]> wrote:
i created to include file, 1 with 'module xxx' declaration and the other
without it. but i still can import both files. what is the diff here?
Not a lot. The module declaration doesn't serve much pu
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