On Mon, 2009-06-08 at 11:45 +0100, Victor Churchill wrote:
And in a Quantum language you would just say what the heck and execute
both of them in parallel anyway ;-)
Or start slow_path in another thread on another core, evaluate fast_path
and its viability in the main line of execution and then
So in perl one could boil the whole thing down to
my $result = ($fast_path_applicable?) $fast_path() : $slow_path() ;
return $result;
You can do the same in C - what comes out of the compiler is identical to
the simple if idiom I used earlier. So - for clarity - I'd still go for
that one...
On Mon, Jun 08, 2009 at 11:45:29AM +0100, Victor Churchill wrote:
On Hugo's second question, well yes different languages have different
capabilities.
So in perl one could boil the whole thing down to
my $result = ($fast_path_applicable?) $fast_path() : $slow_path() ;
return $result;
Hugo Mills wrote:
If you were writing a function with a fast path and a slow path,
which style would you use to write the function?
Style A:
if can_use_fast_path:
return fast path result
# do slow stuff
return slow path result
Style B:
result = fast path result
if
Hugo Mills wrote:
I happily thought that the ternary operator had been put to death
in Python, until I saw this little gem in some code yesterday:
(is_forward and F or B)
The perpetrator has been given a good talking-to. :)
That's become a common idiom in Python, and most
On Mon, Jun 08, 2009 at 02:53:12PM +0100, Daniel Pope wrote:
Hugo Mills wrote:
I happily thought that the ternary operator had been put to death
in Python, until I saw this little gem in some code yesterday:
(is_forward and F or B)
The perpetrator has been given a good
Vic wrote:
Style A has multiple returns from the function. That's one of those things
that's just fine right up until it isn't; code grows as different people
work on it, and sooner or later, you can't see both returns on the same
page. That's when mistakes happen.
Totally disagree with that.
I'm not a fan of the whole concept. I've rarely met a use
of the ternary operator, in any language, that made code easier to
read.)
They can be very useful :
ArrayStart = StartsWithZero ? 0 : 1 ;
Or even :
#define min(a, b) ((ab) ? a : b )
But, as with so many things, ternary operators
Hi,
On Mon, Jun 08 at 02:57, Hugo Mills wrote:
...
Yet one more reason to avoid ternary operators... (If you haven't
guessed yet, I'm not a fan of the whole concept. I've rarely met a use
of the ternary operator, in any language, that made code easier to
read.)
So I guess you wouldn't be
On Mon, Jun 08, 2009 at 03:09:49PM +0100, Vic wrote:
I'm not a fan of the whole concept. I've rarely met a use
of the ternary operator, in any language, that made code easier to
read.)
They can be very useful :
ArrayStart = StartsWithZero ? 0 : 1 ;
Or even :
#define min(a, b)
Hugo Mills wrote:
result = 1 if test() else -1
the idea being that the difference in syntax stresses the success path
as the default with the failure path as a fallback.
Eww. That's *intensely* ugly.
I felt the same way the first time I saw it, but actually encountering
it it's really
I'm not a fan of the whole concept. I've rarely met a use
of the ternary operator, in any language, that made code easier to
read.)
I'd better not reveal some of my code then ;-) I have been known to hang
ternaries inside me ternaries on occasion. A quick scan for \?.*: finds one
usage
--- On Mon, 8/6/09, Hugo Mills h...@carfax.org.uk wrote:
On Mon, Jun 08, 2009 at 02:53:12PM +0100, Daniel Pope wrote:
result = 1 if test() else -1
the idea being that the difference in syntax stresses
the success path
as the default with the failure path as a fallback.
Eww.
On Mon, Jun 08, 2009 at 03:50:47PM +, Isaac Close wrote:
--- On Mon, 8/6/09, Hugo Mills h...@carfax.org.uk wrote:
On Mon, Jun 08, 2009 at 02:53:12PM +0100, Daniel Pope wrote:
result = 1 if test() else -1
the idea being that the difference in syntax stresses
the success path
2009/6/8 Hugo Mills h...@carfax.org.uk:
On Mon, Jun 08, 2009 at 03:50:47PM +, Isaac Close wrote:
--- On Mon, 8/6/09, Hugo Mills h...@carfax.org.uk wrote:
On Mon, Jun 08, 2009 at 02:53:12PM +0100, Daniel Pope wrote:
result = 1 if test() else -1
the idea being that the
Hugo Mills wrote:
On Mon, Jun 08, 2009 at 03:09:49PM +0100, Vic wrote:
#define min(a, b) ((ab) ? a : b )
I'll live with this use. Concise, readable (once), and above all
hidden from view at the point of use.
Until someone does
min (a++, b++)
and wonders
Hugo Mills wrote:
Yet one more reason to avoid ternary operators... (If you haven't
guessed yet, I'm not a fan of the whole concept. I've rarely met a use
of the ternary operator, in any language, that made code easier to
read.)
Hugo.
I use the following fairly regularly when
I have an old style computer monitor - probably 6 or 7 years old - which
has recently begun behaving oddly. It suddenly goes a deep purple
colour. It can be revived by going onto a virtual terminal then
switching back. It's on a dual boot Linux and Windows computer and
happens on both, so I
On Mon, 8 Jun 2009, Owain Clarke wrote:
I have an old style computer monitor - probably 6 or 7 years old -
By old style you mean CRT?
All in all I assume my monitor is dying, but I just thought I'd ask if
it sounds familiar to anyone, so I don't have to buy a new one before I
have to.
Hi,
Sounds like the green gun or the drive to it is going and that whatever the
monitor does when it changes scan rate (the terminal and desktop probably use
different modes) looks like it's causing the drive to the green to come back.
I'd say it was probably time for a nice new flat screen.
Hi All
Has anyone had any fun with the above laptop ? Just picked one up 2nd
hand, tried booting off a Ubuntu 7.10 CD.
It gets as far as the menu for the typical options like :-
Running from CD
Installing, test memory OEM install etc.
After selecting the options to either run from CD or
On Mon, 2009-06-08 at 22:01 +0100, Sean Gibbins wrote:
Phillip Chandler wrote:
Hi All
Has anyone had any fun with the above laptop ? Just picked one up 2nd
hand, tried booting off a Ubuntu 7.10 CD.
---8---
Im now installing Win XP which has formatted the HDD and is now copying
Phillip Chandler wrote:
Hi All
Has anyone had any fun with the above laptop ? Just picked one up 2nd
hand, tried booting off a Ubuntu 7.10 CD.
---8---
Im now installing Win XP which has formatted the HDD and is now copying
files. So wondered if these Ergo machines were not very happy
Phillip Chandler wrote:
On Mon, 2009-06-08 at 22:01 +0100, Sean Gibbins wrote:
Phillip Chandler wrote:
Hi All
Has anyone had any fun with the above laptop ? Just picked one up 2nd
hand, tried booting off a Ubuntu 7.10 CD.
---8---
Im now installing Win XP which
On Mon, 8 Jun 2009, Tim wrote:
If you only have 256mb memory then maybe xbuntu would be a better choice?
Or even crunchbang which has been recommended previously on the list as a
low memory version of Ubuntu:
http://crunchbanglinux.org
Andy
--
Please post to:
I have an old style computer monitor - probably 6 or 7 years old - which
has recently begun behaving oddly. It suddenly goes a deep purple
colour.
It's probably the monitor dying - but before you bin it, *check* it's not
something silly like the cable starting to fall out...
Vic.
--
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