On 17 Feb 2015 16:07, Ivar Nesje iva...@gmail.com wrote:
Nice, I'm glad my code didn't crash when given unexpected input.
Maybe we should check the system clock against a online time server when
you run make test. We just use the timestamp git adds when committing, so
other than that, there
I'm trying to wrap the Parma Polyhedron Library in Julia.
The library itself is written in C++, I am trying to wrap the C API.
Consider a snippet of an C example which uses the C API
static int
solve_with_generators(ppl_Constraint_System_t ppl_cs,
Thank you indeed the constructor confusion is one of just a few things I
don't like about Julia.
El martes, 17 de febrero de 2015, 12:59:00 (UTC-6), Ismael VC escribió:
Why can't I create an instance of this `Bar` type with the following
enforced invariants?
julia versioninfo()
Julia
int ppl_version(const char** p)
On Tuesday, February 17, 2015 at 5:38:36 PM UTC-5, Stefan Karpinski wrote:
What is the signature of the ppl_version C function?
On Tue, Feb 17, 2015 at 5:23 PM, Zenna Tavares zennat...@gmail.com
javascript: wrote:
I am attempting to wrap the Parma
Apparently it works fine (Thanks very much, Rob!).
Enjoy, and if you run into any trouble please feel free to let me know.
Petr
On Tuesday, February 17, 2015 at 12:20:22 PM UTC-8, Petr Krysl wrote:
Hi guys,
I have uploaded to Github a Julia package that wraps an automatic 2D
triangulation
Yes.
On Feb 17, 2015, at 9:52 PM, David P. Sanders dpsand...@ciencias.unam.mx
wrote:
On 17 Feb 2015 16:07, Ivar Nesje iva...@gmail.com wrote:
Nice, I'm glad my code didn't crash when given unexpected input.
Maybe we should check the system clock against a online time server when
The following solved this problem:
[17:44] wat_ it looks like the array is being passed directly, although
an array of ascii strings can't be passed directly in my experience
[17:46] wat_ I created a function which creates an array of Ptr{UInt8}
from an array of strings
[17:46] wat_ convert(
Indeed, thanks.
On Tuesday, February 17, 2015 at 6:14:34 PM UTC-5, Stefan Karpinski wrote:
Your original code gives a deprecation warning on both Julia 0.4 and 0.3
which is actually an indication of a much deeper issue: you're converting
an array of arrays of bytes to a pointer, which gives
C function which return values of type *ppl_Polyhedron_t** rather
On Tuesday, February 17, 2015 at 8:40:16 PM UTC-5, Zenna Tavares wrote:
I'm trying to wrap the Parma Polyhedron Library in Julia.
The library itself is written in C++, I am trying to wrap the C API.
Consider a snippet of an C
Your original code gives a deprecation warning on both Julia 0.4 and 0.3
which is actually an indication of a much deeper issue: you're converting
an array of arrays of bytes to a pointer, which gives a pointer to the data
of the top-level array data and then reinterprets that pointer as a pointer
Hello all! The latest bugfix release of the 0.3.x Julia line has been
released. Binaries are available from the usual place
http://julialang.org/downloads/, and as is typical with such things,
please report all issues to either the issue tracker
https://github.com/JuliaLang/julia/issues, or email
FWIW, I'm using gcc 4.7 and got the same version error.
configure: error:
The selected GCC C++ compiler is not new enough to build LLVM. Please
upgrade
to GCC 4.7. You may pass --disable-compiler-version-checks to configure to
bypass these sanity checks.
Makefile:528: recipe for target
Fixed it. The issue is that Make is trying to use g++. Make sure that g++
-v is reporting the correct version. If not, you'll have to apt-get
install g++-4.7 and then ln -s /usr/bin/g++-4.7 /usr/bin/g++ .
On Monday, February 16, 2015 at 9:32:27 PM UTC-8, Viral Shah wrote:
This is annoying.
Definitely possible. The code is at
https://github.com/JuliaLang/julia/blob/master/base/version.jl#L210
I deleted my previous question because I didn't have enough info. Now I
might, but it's turned into something very specific.
I am running into a problem where checking for EOF on a network connection
is causing a ~10 - 15-second delay. That is,
function eof(s::Session)
info($(now()) eof:
Yes, I know that but couldn't isa be made to return also 'true' in my
second example?
terça-feira, 17 de Fevereiro de 2015 às 16:07:03 UTC, Tim Holy escreveu:
This has nothing to do with isa. In julia, a scalar is different from a 1-
element array. Matlab doesn't make that distinction,
You appear to be returning pointers to memory that are outliving the life
of their owning object. The array out appears to point to memory owned by
R (which you seem to be explicitly invalidating at the end of the loop) and
you use the result of pointer([ ]), without holding a reference to [ ] in
See:
http://julia.readthedocs.org/en/latest/manual/faq/#i-passed-an-argument-x-to-a-function-modified-it-inside-that-function-but-on-the-outside-the-variable-x-is-still-unchanged-why
http://julia.readthedocs.org/en/latest/manual/faq/#why-does-x-y-allocate-memory-when-x-and-y-are-arrays
On Tue,
Thanks, yes I see what you mean. Actually I still need to write the
'transpose' part that is mentioned in the comment and that implies making a
data copy.
terça-feira, 17 de Fevereiro de 2015 às 16:42:10 UTC, Jameson escreveu:
You appear to be returning pointers to memory that are outliving
In this particular use case, you can use isa(eltype(x), Float32), which
will work for both scalars and arrays.
Thanks,
Jiahao Chen
Staff Research Scientist
MIT Computer Science and Artificial Intelligence Laboratory
On Tue, Feb 17, 2015 at 9:40 AM, Abel Siqueira nepper...@gmail.com wrote:
Good point, printing to the the IOBuffer is the fastest option:
strings = [randstring() for i in 1:100]
function f1(strings)
a = IOBuffer()
for s in strings
print(a, s)
end
takebuf_string(a)
end
function f2(strings)
join(strings)
end
function f3(stings)
buf =
You'd break the julia type system by doing so.
You can define jluis_isa() to do whatever you want, however.
--Tim
On Tuesday, February 17, 2015 08:16:03 AM J Luis wrote:
Yes, I know that but couldn't isa be made to return also 'true' in my
second example?
terça-feira, 17 de Fevereiro de
Hi all,
I've tried to vitalize some of the Julia groups that I'm part of.
Groups: JuliaGPU https://github.com/JuliaGPU, JuliaGeometry
https://github.com/JuliaGeometry, JuliaGL https://github.com/JuliaGL/
The biggest change is, that I've added some gitter batches, to easily start
chatting about
On Tuesday, February 17, 2015 at 10:42:01 AM UTC-6, Abel Siqueira wrote:
What Tim was trying to point out is that `isa` a builtin, and many things
depend on it being able to differentiate a scalar from an array.
However, if you, in your code, wants to ignore this, you can define
a function
Hi,
I just did a `git pull` and compiled latest master. Apparently I am now
able to travel to the future
```
11:17 $ julia-dev
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_)| Documentation: http://docs.julialang.org
_ _ _| |_
Please DO open a pull request with suggested edits to the documentation!
Thanks,
Jiahao Chen
Staff Research Scientist
MIT Computer Science and Artificial Intelligence Laboratory
On Tue, Feb 17, 2015 at 11:59 AM, David Higgins daithiohuig...@gmail.com
wrote:
Thanks Stefan,
I did actually see
Hi all,
sorry if this is simple question. But I'm used to using python's open()
file function which will create a file if the file does not already exist.
Does this functionality exist in julia and I just messed up something? Or
is this missing and I should create my textfiles before hand?
This has nothing to do with isa. In julia, a scalar is different from a 1-
element array. Matlab doesn't make that distinction, because in Matlab
_everything_ is an array. Which is much of why Matlab is slow for many things.
--Tim
On Tuesday, February 17, 2015 08:03:12 AM J Luis wrote:
julia
Array{Float32} is *not* an instance of a Float32 – it would be incorrect if
isa([1.0f0], Float32) == true.
On Tue, Feb 17, 2015 at 11:33 AM, J Luis jmfl...@gmail.com wrote:
You'd break the julia type system by doing so.
You can define jluis_isa() to do whatever you want, however.
Hmm,
IOBuffer is what you're looking for:
buf = IOBuffer()
for i = 1:100
println(buf, i)
end
takebuf_string(buf) # = returns everything that's been written to buf.
The takebuf_string function really needs a new name.
On Tue, Feb 17, 2015 at 9:06 AM, Maurice Diamantini
Thanks, it seems composite types is a perfect fit for most of my
needs(required fields and their size will typically be known at time of
type definition for the present problem).
Regards, m
On Monday, February 16, 2015 at 6:57:57 PM UTC+1, Tim Holy wrote:
Composite types are much higher
You could use
a = Any[]
while ...
push!(a, somestring)
end
join(a)
Am 17.02.2015 um 15:28 schrieb Maurice Diamantini
maurice.diamant...@gmail.com:
Hi,
In Ruby, String is mutable and there is the operator to accumulate
a string at the end of another one.
I Julia, String is
There is an IOBuffer type that works well as a string builder
On Tue, Feb 17, 2015 at 11:56 AM René Donner li...@donner.at wrote:
You could use
a = Any[]
while ...
push!(a, somestring)
end
join(a)
Am 17.02.2015 um 15:28 schrieb Maurice Diamantini
maurice.diamant...@gmail.com:
Thanks,
That's indeed what I was looking for.
terça-feira, 17 de Fevereiro de 2015 às 17:12:19 UTC, Jiahao Chen escreveu:
In this particular use case, you can use isa(eltype(x), Float32), which
will work for both scalars and arrays.
Thanks,
Jiahao Chen
Staff Research Scientist
MIT
OK, I think my issue was I was using open(filename, r+), but i imagine
that implies it must be able to be 'read' first?
Thank you! I'll try this out now, hopefully it works :)
On Tuesday, February 17, 2015 at 10:57:25 AM UTC-5, Patrick O'Leary wrote:
On Tuesday, February 17, 2015 at 9:51:21
You'd break the julia type system by doing so.
You can define jluis_isa() to do whatever you want, however.
Hmm, well I guess I could but according to your first statement I would be
braking the julia type sysyem :)
--Tim
On Tuesday, February 17, 2015 08:16:03 AM J Luis wrote:
Hi,
In Ruby, String is mutable which allows to build large strings like this:
txt =
for ...
txt yet another line\n
end
# do something with txt
The Julia the (bad) way I use is to do:
txt =
for ...
txt *= yet another line\n
end
# do something
*eltype([1f0]) : Float32* should do the trick...
Am Dienstag, 17. Februar 2015 17:03:12 UTC+1 schrieb J Luis:
julia isa(1.0f0, Float32)
true
julia isa([1.0f0], Float32)
false
julia isa([1.0f0], Array{Float32})
true
It means that to know the data type one must first test if the variable
julia v*v'
1x1 Array{Int64,2}:
14
This is an array, while w[1] is a Float64.
So you need to do something like first(v*v')
or (v*v')[1]
Am Dienstag, 17. Februar 2015 21:04:04 UTC+1 schrieb Christian Dengler:
Hello,
I recently discovered Julia, and tried to convert some of my code. I ran
Well, this is one of the ugly things and actually not new:
Bar{Float64}(1, 8)
should do the trick.
The other doesn't work, because you can't construct Bar with more than two
values.
This happens because you did overwrite the default constructor, allowing to
construct bar only with x and y.
T
Hi guys,
I have uploaded to Github a Julia package that wraps an automatic 2D
triangulation tool (binary). I only have access to Windows and Linux, so I
was wondering if anyone would be willing to take it for a spin on the Mac?
https://github.com/PetrKryslUCSD/Targe2.jl
Thanks!
Petr
Hello,
I recently discovered Julia, and tried to convert some of my code. I ran
into a problem, changing values in a sparse matrix. The entries i want to
put in the sparse matrix result from a dot product. The error message is
ERROR: `convert` has no method matching convert(::Type{Float64},
The confusion stems from this: *assignment and mutation are not the same
thing.*
*Assignment. *Assignment looks like `x = ...` – what's left of the `=` is a
variable name.
Assignment changes which object the variable `x` refers to (this is called
a variable binding). It doesn't mutate any
On Mon, Feb 16, 2015 at 3:29 AM, David van Leeuwen
david.vanleeu...@gmail.com wrote:
Would an option -- make sense to separate the start up files from
arguments to be passed to the script/sessions.
Yes, this is the right solution. I've opened two related issues:
That's because the typeof(Float32) == DataType, so isa(Float32,DataType) ==
true.
On Tue, Feb 17, 2015 at 11:48 AM, J Luis jmfl...@gmail.com wrote:
In this particular use case, you can use isa(eltype(x), Float32), which
will work for both scalars and arrays.
Checked it now and it would be
Why can't I create an instance of this `Bar` type with the following
enforced invariants?
julia versioninfo()
Julia Version 0.4.0-dev+3353
Commit 0179028* (2015-02-14 17:08 UTC)
Platform Info:
System: Windows (x86_64-w64-mingw32)
CPU: Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
I see this too. Time to buy some lottery numbers!
I'm going to guess some sort of rounding logic error.
Thanks,
Jiahao Chen
Staff Research Scientist
MIT Computer Science and Artificial Intelligence Laboratory
On Tue, Feb 17, 2015 at 1:13 PM, Tony Kelman t...@kelman.net wrote:
I think the
I think the clock on Oscar's computer might be running a little fast. I
noticed github saying authored just now for that commit for maybe 15-20
minutes after it had already been committed. Apparently that can confuse
version_git.sh.
On Tuesday, February 17, 2015 at 9:19:52 AM UTC-8, David P.
In this particular use case, you can use isa(eltype(x), Float32), which
will work for both scalars and arrays.
Checked it now and it would be good but actually it oddly does not work
julia eltype([1.0f0])
Float32
julia isa(eltype([1.0f0]), Float32)
false
(I'' use Patrick's solution, but
Probably best to open an issue on the IJulia repo:
https://github.com/JuliaLang/IJulia.jl/issues (after checking that a
relevant issue doesn't already exist).
On Tue, Feb 17, 2015 at 1:58 PM, Alex Ocampo alexocampo...@gmail.com
wrote:
Hi, all-
I'm having trouble getting my latex equations to
eltype([1f0]) == Float32 is working, too.
On Tuesday, February 17, 2015 at 8:39:05 PM UTC+1, Simon Danisch wrote:
*eltype([1f0]) : Float32* should do the trick...
Am Dienstag, 17. Februar 2015 17:03:12 UTC+1 schrieb J Luis:
julia isa(1.0f0, Float32)
true
julia isa([1.0f0], Float32)
or dot(v,v) or sumabs2(v)
--Tim
On Tuesday, February 17, 2015 12:42:34 PM Simon Danisch wrote:
julia v*v'
1x1 Array{Int64,2}:
14
This is an array, while w[1] is a Float64.
So you need to do something like first(v*v')
or (v*v')[1]
Am Dienstag, 17. Februar 2015 21:04:04 UTC+1 schrieb
I'm chasing down a REPL lockup with Requests.jl: the entire REPL becomes
unresponsive (to ^C intr - but not to ^Z susp) and requires killing. When I
do that, I get the following:
signal (15): Terminated: 15
_ZN9libunwind13DwarfFDECacheINS_17LocalAddressSpaceEE7findFDEEyy at /Users/
See:
https://github.com/JuliaLang/JuliaBox/issues/76
Yes, that's the solution that Patrick O'Leary propose a couple of messages
above.
terça-feira, 17 de Fevereiro de 2015 às 21:06:12 UTC, Uwe Fechner escreveu:
eltype([1f0]) == Float32 is working, too.
On Tuesday, February 17, 2015 at 8:39:05 PM UTC+1, Simon Danisch wrote:
*eltype([1f0]) :
Nice, I'm glad my code didn't crash when given unexpected input.
Maybe we should check the system clock against a online time server when you
run make test. We just use the timestamp git adds when committing, so other
than that, there doesn't seem like there is much new can do.
I am attempting to wrap the Parma Polyhedron Primitive Library.
It has a function 'ppl_version' which modifies a set of strings,
represented as a char **. An example function which calls 'ppl_version' is
as follows:
get_ppl_version() {
const char* p;
(void) ppl_version(p);
return p;
}
What is the signature of the ppl_version C function?
On Tue, Feb 17, 2015 at 5:23 PM, Zenna Tavares zennatava...@gmail.com
wrote:
I am attempting to wrap the Parma Polyhedron Primitive Library.
It has a function 'ppl_version' which modifies a set of strings,
represented as a char **. An
58 matches
Mail list logo
