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by: Carl |
last post by:
"Nine Language Performance Round-up: Benchmarking Math & File I/O"
http://www.osnews.com/story.php?news_id=5602
I think this is an unfair comparison! I wouldn't dream of developing a
numerical application in Python without using prebuilt numerical libraries
and data objects such as dictionaries and lists.
I have been experimenting with numerical algorithms in Python with a heavy
use of the Numeric module. My experience is that Python...
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by: Yuri Victorovich |
last post by:
In short my question is:
If I overload "operator new" for class A and return from it
instance of struct B (unrelated with A) as allocated memory
area for A should aliasing rules work and allow optimizer
to "merge" assemblies together ?
My opinion: NO, since aliasing rules talk about one lvalue
for access to two unrelated objects and one of these objects
is not constructed yet w/in operator new.
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by: Jason |
last post by:
Hi guys,
I am having problems with VML. I had been working on a problem for
sometime now, and I just recently discovered what the problem really
was: VML was anti-aliasing my rectangles, but I didn't want it too. So
I added the following attribute to my rectangles which solved the
problem somewhat:
antialias: false;
On my monitor, the rectangles are drawn properly now, without
anti-aliasing. However, when I print it to a printer, the
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by: Michel |
last post by:
Is there a way I can anti-aliasing a gif to be able to get a
hi-quality resizeable backgroundpicture.
When a GIF of JPG is being resized by the browser you get wurse
pictures because it needs a anti-aliasing. Maybe there is some filter
for it...
Or can I write my own subroutine to do this in client-browsers?
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by: Adam Warner |
last post by:
Hi all,
Message ID <c1qo3f0tro@enews2.newsguy.com> is one of many informative
articles by Chris Torek about C. The particular message discusses aliasing
and concludes with this paragraph:
Under these strict type-aliasing rules, casting from (e.g.) "int *" to
"short *" is not only quite suspicious, it is also likely to cause
puzzling behavior, at least if you expect your "short *" to access or
modify your "int". Even the time-honored,...
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by: nicolas.riesch |
last post by:
I try to understand strict aliasing rules that are in the C Standard.
As gcc applies these rules by default, I just want to be sure to
understand fully this issue.
For questions (1), (2) and (3), I think that the answers are all "yes",
but I would be glad to have strong confirmation.
About questions (4), (5) and (6), I really don't know. Please help ! !
!
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by: liljencrantz |
last post by:
Hi,
I have a piece of code that uses hashtables to store pointers to
various bits of data. The hashtable sees all pointers as const void *,
while the application obviously uses various other pointer types for
the data. I've run into a warning with the following code:
void hash_remove( hash_table_t *h,
const void *key,
const void **old_key,
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by: Hallvard B Furuseth |
last post by:
I'm getting horribly lost in the strict aliasing rules.
Is this code correct?
struct A { int x; };
struct B { int x, y; };
int foo( struct A *a ) {
struct B *b = (struct B *) a;
return b->x - b->y;
}
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by: Squat'n Dive |
last post by:
Does anyone have an idea why -fno-strict-aliasing is turned off when
cross compiling?
in configure generated for 2.4.4:
case $GCC in
yes)
# Python violates C99 rules, by casting between incompatible
# pointer types. GCC may generate bad code as a result of that,
# so use -fno-strict-aliasing if supported.
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by: Paul Brettschneider |
last post by:
Hello all,
consider the following code:
typedef char T;
class test {
T *data;
public:
void f(T, T, T);
void f2(T, T, T);
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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