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by: Carsten Spieß |
last post by:
Hello all,
i have a problem with a template constructor
I reduced my code to the following (compiled with gcc 2.7.2) to show
my problem:
// a base class
class Base{};
// two derived classes
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by: Mr A |
last post by:
Hi!
I've been thinking about passing parameteras using references instead
of pointers in order to emphasize that the parameter must be an
object.
Exemple:
void func(Objec& object); //object must be an object
instead of
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by: Bruno van Dooren |
last post by:
Hi All,
i have some (3) different weird pointer problems that have me stumped. i
suspect that the compiler behavior is correct because gcc shows the same
results.
----------------------------------------------
//example 1:
typedef int t_Array;
int main(int argc, char* argv)
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by: tuko |
last post by:
Hello kind people.
Can someone explain please the following code?
/* Create Storage Space For The Texture */
AUX_RGBImageRec *TextureImage; /* Line 1*/
/* Set The Pointer To NULL */
memset(TextureImage,0,sizeof(void *)*1); /* Line 2*/
According to my knowledge in the first line
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by: junky_fellow |
last post by:
According to Section A6.6 Pointers and Integers (k & R)
" A pointer to one type may be converted to a pointer to another type.
The resulting pointer may cause
addressing exceptions if the subject pointer does not refer to an
object suitably aligned in storage. It is
guaranteed that a pointer to an object may be converted to a pointer to
an object whose type requires less
or equally strict storage alignment and back again without change;...
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by: Alexei A. Frounze |
last post by:
Hi all,
I have a question regarding the gcc behavior (gcc version 3.3.4).
On the following test program it emits a warning:
#include <stdio.h>
int aInt2 = {0,1,2,4,9,16};
int aInt3 = {0,1,2,4,9};
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by: aegis |
last post by:
Given the following:
int a = 10;
int *p;
void *p1;
unsigned char *p2;
p = &a;
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by: bluejack |
last post by:
Ahoy... before I go off scouring particular platforms for specialized
answers, I thought I would see if there is a portable C answer to this
question:
I want a function pointer that, when called, can be a genuine no-op.
Consider:
typedef int(*polymorphic_func)(int param);
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by: fieldfallow |
last post by:
Hello all,
Before stating my question, I should mention that I'm fairly new to C.
Now, I attempted a small demo that prints out the values of C's numeric
types, both uninitialised and after assigning them their maximum defined
values. However, the output of printf() for the long double 'ld' and the
pointer of type void 'v_p', after initialisation don't seem to be right.
The compiler used was gcc (mingw) with '-Wall', '-std=c99' and
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by: Martin Jørgensen |
last post by:
Hi,
"C primer plus" p.382:
Suppose we have this declaration:
int (*pa);
int ar1;
int ar2;
int **p2;
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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...
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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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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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: 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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