digitalmars.D.learn - std.algorithm Map using a external variable
- Zardoz (14/14) Dec 10 2012 I'm trying to use Map with a code like this :
- Jacob Carlborg (5/19) Dec 10 2012 std.getopt uses module variables, don't know if that has anything to do
- H. S. Teoh (9/24) Dec 10 2012 [...]
- Zardoz (15/41) Dec 10 2012 Well. I just try it again and I noticed this things :
- Maxim Fomin (5/19) Dec 10 2012 Looks like template lambda bug
I'm trying to use Map with a code like this :
...
immutable int m = 10;
int[] caca = [1,2,3,4];
auto caca2 = map!( (a) {return a * m;})(caca);
writeln(caca2);
...
I get a Segmentation fault some times:
The most interesting point it's that depends of the code around
of it ins the same program. for example If a use getopt at the
begin of my program, then seg fault, etc...
Looks that there some weird error in gdc 4.6.3
PD: Later I will put the whole code so any can see if I doing
some weird thing that make map crazy
Dec 10 2012
Jacob Carlborg <doob me.com>
On 2012-12-10 19:21, Zardoz wrote:
I'm trying to use Map with a code like this :
...
immutable int m = 10;
int[] caca = [1,2,3,4];
auto caca2 = map!( (a) {return a * m;})(caca);
writeln(caca2);
...
I get a Segmentation fault some times:
The most interesting point it's that depends of the code around of it
ins the same program. for example If a use getopt at the begin of my
program, then seg fault, etc...
Looks that there some weird error in gdc 4.6.3
PD: Later I will put the whole code so any can see if I doing some weird
thing that make map crazy
std.getopt uses module variables, don't know if that has anything to do
with it.
--
/Jacob Carlborg
Dec 10 2012
On Mon, Dec 10, 2012 at 07:21:47PM +0100, Zardoz wrote:
I'm trying to use Map with a code like this :
...
immutable int m = 10;
int[] caca = [1,2,3,4];
auto caca2 = map!( (a) {return a * m;})(caca);
writeln(caca2);
...
I get a Segmentation fault some times:
The most interesting point it's that depends of the code around of
it ins the same program. for example If a use getopt at the begin
of my program, then seg fault, etc...
[...]
Do you have a compilable sample (possibly reduced from your full
sources) that exhibits this error? It would help track down the problem.
There are some known bugs related to map in older releases of D that may
be affecting you.
T
--
Give me some fresh salted fish, please.
Dec 10 2012
Well. I just try it again and I noticed this things :
-Changind the lambda function from :
auto caca2 = map!((a) {return a * iDeltaT;})(caca);
to :
auto caca2 = map!((a) {return a + iDeltaT;})(caca);
Avoid the segmentation fault
-Using dmd 2.60 avoid the segmentation fault.
The source code is in
http://dl.dropbox.com/u/2716434/CodeThatCrash.tgz
The makefile only builds againts gdc, so to test it with dmd, I
manually compiled the faulty code of serie2Sim.d with :
dmd serie2Sim.d entity.d vector.d -ofserie2Sim
And I launch it with ./serie2Sim --rand 10 --seed 123
With dmd works, but with gdc not.
On Monday, 10 December 2012 at 18:59:31 UTC, H. S. Teoh wrote:
On Mon, Dec 10, 2012 at 07:21:47PM +0100, Zardoz wrote:
I'm trying to use Map with a code like this :
...
immutable int m = 10;
int[] caca = [1,2,3,4];
auto caca2 = map!( (a) {return a * m;})(caca);
writeln(caca2);
...
I get a Segmentation fault some times:
The most interesting point it's that depends of the code
around of
it ins the same program. for example If a use getopt at the
begin
of my program, then seg fault, etc...
[...]
Do you have a compilable sample (possibly reduced from your full
sources) that exhibits this error? It would help track down the
problem.
There are some known bugs related to map in older releases of D
that may
be affecting you.
T
Dec 10 2012
On Monday, 10 December 2012 at 18:21:48 UTC, Zardoz wrote:
I'm trying to use Map with a code like this :
...
immutable int m = 10;
int[] caca = [1,2,3,4];
auto caca2 = map!( (a) {return a * m;})(caca);
writeln(caca2);
...
I get a Segmentation fault some times:
The most interesting point it's that depends of the code around
of it ins the same program. for example If a use getopt at the
begin of my program, then seg fault, etc...
Looks that there some weird error in gdc 4.6.3
PD: Later I will put the whole code so any can see if I doing
some weird thing that make map crazy
Looks like template lambda bug
(http://d.puremagic.com/issues/show_bug.cgi?id=8899). It might
depend not only on surrounding code, but on importing some phobos
module (issue 8854).
Dec 10 2012