I'm attempting Project Euler's problem 11.
http://projecteuler.net/problem=11
Currently, my code looks like posted below, and it gives
object.Error: Access Violation
at runtime.
Question: how to read that grid from a text file? (See link above.)
If you have ideas for using something other
IK:
Question: how to read that grid from a text file?
I don't know the cause of your problem. While investigating it I
have filed another bug:
http://d.puremagic.com/issues/show_bug.cgi?id=8260
In the meantime this (a bit scary) code solves your reading
problem:
import std.stdio,
Everything turned out to be problems with \r \n.
The treading system worked perfectly (although I still don't
understand how one can use immutable and receiveonly).
and something I forgot to ask, is it a conscious decision to not print
out fired asserts in treads? Normally when an assert fails my whole
program crashes and I can see what went wrong. With treads however, it
quietly dies.
Hmm does your code generate a 1D `array` as a grid, bearophile?
Anyway thanks, I'll compile it shortly.
My own code evolved to what's below and gives a Range violation.
Also I don't understand why formattedRead can't just accept a casted
`opSlice.dup`, is it a bug?
void main()
{
On 6/17/12, Andrej Mitrovic andrej.mitrov...@gmail.com wrote:
Has anyone come up with a template that can simulate a rectangular
array and allow one to override opAssign to do special work?
Thanks for the replies, guys.
Sorry, forgot to post the code:
http://pastie.org/4109337
Is there no way to edit posts?
Today I learnt D. I have a lot of experience with other
languages, but I think D fills a gap. So far I've really liked
it, having used C# and C a lot it feels right. I'm also pretty
excited about some of the more powerful features.
I can teach myself a language no problem, but to make it
struct Wrap
{
string wrap;
alias wrap this;
}
void main()
{
Wrap x;
x = foo; // ok
Wrap[] y = [foo, bar]; // fail
}
Error: cannot implicitly convert expression ([foo,bar]) of type
string[] to Wrap[]
Any special reason why this doesn't work? I hope it's just a bug or
On Monday, June 18, 2012 18:51:01 Andrej Mitrovic wrote:
struct Wrap
{
string wrap;
alias wrap this;
}
void main()
{
Wrap x;
x = foo; // ok
Wrap[] y = [foo, bar]; // fail
}
Error: cannot implicitly convert expression ([foo,bar]) of type
string[] to Wrap[]
Any special reason why
Matt Diesel:
Firstly, is there any good resource on what idiomatic D usage
is? For instance Go has a huge page called Effective Go which
tells you how you should use features, rather than what they
are.
I don't know any such page, but it looks like an interesting
addition for the online
On Mon, 18 Jun 2012 18:22:34 +0200, Matt Diesel wrote:
Sorry, forgot to post the code:
http://pastie.org/4109337
Is there no way to edit posts?
A couple of observations:
- According to the D style guide (http://dlang.org/dstyle.html), you
should prefer to capitalize class and struct
On 6/18/12, Jonathan M Davis jmdavisp...@gmx.com wrote:
At that point, you'd need to be converting from string[] to Wrap[],
which would mean creating a new array
It doesn't have to allocate anything because there's the 'alias this'
and a single data member. All the compiler has to do is cast
On Monday, June 18, 2012 19:05:35 Andrej Mitrovic wrote:
On 6/18/12, Jonathan M Davis jmdavisp...@gmx.com wrote:
At that point, you'd need to be converting from string[] to Wrap[],
which would mean creating a new array
It doesn't have to allocate anything because there's the 'alias this'
Thanks to both of you, that was exactly the sort of input I was
looking for :)
The D Style guide looks like what I wanted. It's more just about
formatting but that should be enough for now.
I can't really reply to each individual point, but there is a lot
of new stuff there that at first
On Monday, June 18, 2012 18:20:58 Matt Diesel wrote:
Today I learnt D. I have a lot of experience with other
languages, but I think D fills a gap. So far I've really liked
it, having used C# and C a lot it feels right. I'm also pretty
excited about some of the more powerful features.
I can
On 06/18/2012 06:29 PM, Andrej Mitrovic wrote:
I just had a need for this but couldn't find it in Phobos:
import std.stdio;
import std.traits;
import std.range;
template SwapElem(Arr, Type)
{
static if (isArray!(ElementType!Arr))
{
static if (isDynamicArray!Arr)
On Monday, 18 June 2012 at 13:22:24 UTC, maarten van damme wrote:
and something I forgot to ask, is it a conscious decision to
not print out fired asserts in treads? Normally when an assert
fails my whole program crashes and I can see what went wrong.
With treads however, it quietly dies.
Subj: http://dpaste.dzfl.pl/dfab7219
I wanted to code a small extension to phobos typetuple module to
extend basic available operations on type tuples more on par with
std.algorithm ones. I don't have enough practice in
metaprogramming D way though and would gladly listen any
recommendations
On 6/18/12, Timon Gehr timon.g...@gmx.ch wrote:
template SwapElem(A, E){
static if(is(A X:X[N],size_t N)) alias SwapElem!(X,E)[N] R;
else static if(is(A X:X[])) alias SwapElem!(X,E)[] R;
else static if(is(A X:X*)) alias SwapElem!(X,E)* R;
else alias E R;
alias R
On Monday, June 18, 2012 23:41:01 mist wrote:
Subj: http://dpaste.dzfl.pl/dfab7219
I wanted to code a small extension to phobos typetuple module to
extend basic available operations on type tuples more on par with
std.algorithm ones. I don't have enough practice in
metaprogramming D way
On 06/19/2012 12:01 AM, Andrej Mitrovic wrote:
On 6/18/12, Timon Gehrtimon.g...@gmx.ch wrote:
template SwapElem(A, E){
static if(is(A X:X[N],size_t N)) alias SwapElem!(X,E)[N] R;
else static if(is(A X:X[])) alias SwapElem!(X,E)[] R;
else static if(is(A X:X*)) alias
On 6/19/12, Andrej Mitrovic andrej.mitrov...@gmail.com wrote:
On 6/19/12, Timon Gehr timon.g...@gmx.ch wrote:
Indeed. If you are interested, I'll make it work with qualified types as
well. =)
I thought it already does?
Oh you meant to *keep* the qualifier, yeah.
On 6/19/12, Andrej Mitrovic andrej.mitrov...@gmail.com wrote:
On 6/19/12, Andrej Mitrovic andrej.mitrov...@gmail.com wrote:
On 6/19/12, Timon Gehr timon.g...@gmx.ch wrote:
Indeed. If you are interested, I'll make it work with qualified types as
well. =)
I thought it already does?
Oh you
On Monday, 18 June 2012 at 16:51:11 UTC, Andrej Mitrovic wrote:
struct Wrap
{
string wrap;
alias wrap this;
}
void main()
{
Wrap x;
x = foo; // ok
Wrap[] y = [foo, bar]; // fail
}
Error: cannot implicitly convert expression ([foo,bar]) of
type
string[] to Wrap[]
Any
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