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by: Steven T. Hatton |
last post by:
Now that I have a better grasp of the scope and capabilities of the C++
Standard Library, I understand that products such as Qt actually provide
much of the same functionality through their own libraries. I'm not sure
if that's a good thing or not. AFAIK, most of Qt is compatable with the
Standard Library. That is, QLT can interoperate with STL, and you can
convert back and forth between std::string and Qt::QString, etc.
Are there any...
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by: puzzlecracker |
last post by:
does anyone know how to implement this function efficiently?
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by: theoderich |
last post by:
Following is possible with gcc and g++:
#include <math.h>
double sin(double)
{
return 1;
}
int main()
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by: Sensei |
last post by:
I have a quick question about the math library included in the standard
C90 (and 99).
The gcc, xlc and possibly other compilers/linkers on some unix
platforms cannot use any math functions in math.h if a switch (-lm) is
used, so *explicitly* having the linker use a file called libm.so or
libm.a/dylib/whatever.
Is it true on all the platforms? (answer: probably no)
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by: sharpblade |
last post by:
The title of these Item is "Make header files self-sufficient"
There're two examples in this Item:
Example 1: Dependent names. Templates are compiled at the point where
they are defined, except that any dependent names or types are not
compiled until the point where the template is instantiated. This means
that a template<class Tclass Widget with a std::deque<Tmember does
not incur a compile-time error even when <dequeis not included, as...
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by: William Krick |
last post by:
I am writing an XSL transform that converts XML data about vehicles
into XML data that will fill printed forms.
The default form can handle up to 5 vehicles which I handle using
subscripts...
<xsl:for-each select="VEHICLE">
<!-- spit out some stuff about this vehicle -->
</xsl:for-each>
<xsl:for-each select="VEHICLE">
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by: marktxx |
last post by:
Although the C90 standard only mentions the use of 'signed int' and
'unsigned int' for bit-fields (use 'int' at your own risk) and C99
adds _Bool.
It seems that most compilers create the size of the bit-field object
from the size used to specify the field.
Could this be considered a defacto standard now (at least for 8 bit
sized bit-fields)?
Any recent compilers not allowing this?
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by: aaragon |
last post by:
Hi everyone,
I was unable to find out why my code is not compiling. I have a
template class and I'm trying to write the operator<< for standard
output. Does anyone know why this is not right? The code is as
follows...
// main class:
template <
class Individual,
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by: Alan |
last post by:
I have a couple of questions about using a variable number of
arguments in a function call (...). The context is that I have some
mathematical functions I created. I currently pass them a pair of
numbers (doubles), and the functions only work in one dimension. I
would ideally like to extend them to work in N dimensions, which means
I want to pass some undefined number of pairs of arguments. I will
loop through the N arguments to do the...
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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...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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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