| |
by: franky.backeljauw |
last post by:
Hello,
following my question on "std::copy versus pointer copy versus member
copy", I had some doubts on the function memcpy, as was used by tom_usenet
in his reply.
- Is this a c++ standard library function? That is, can I be sure that
every c++ standard library has this function? Or is there a c++
alternative to it?
|
by: bisforbenson |
last post by:
I'm trying to compile things with gcc 4. After running the following
command:
% gcc -O3 -g -Wall -Wno-unused -DLINUX -D_REENTRANT -o ../../obj/egi.o
-I../../include/ -I... -c egi.cpp
i get the following errors:
/usr/lib/gcc/i386-redhat-linux/4.0.1/../../../../include/c++/4.0.1/cstring:79:
error: '::memcpy' has not been declared
|
by: Christopher Benson-Manica |
last post by:
(if this is a FAQ or in K&R2, I didn't find it)
What parameters (if any) may be 0 or NULL? IOW, which of the following
statements are guaranteed to produce well-defined behavior?
char src;
char dst;
memcpy( dst, src, 1 );
memcpy( NULL, src, 1 );
|
by: xdevel |
last post by:
Hi, anyone can make me an example where
memmove does not cause a memory overlapping and
where memcpy do it?
Thanks
|
by: somenath |
last post by:
Hi All,
I am trying to understand the behavior of the memcpy and memmove.
While doing so I wrote a program as mentioned bellow .
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define SIZE_OF_DST 3
int main(void)
|
| |
by: mthread |
last post by:
Hi,
I am copying data from one buffer(this data is a binary data not
string) to another buffer. Earlier when I used C, I used the memcpy
function call to copy the values. Is there any equivalent replacement
in C++ for this call.
|
by: gsi |
last post by:
Hi all,
memmove() is guranteed to work correctly if the objects overlap, I am not sure why this can't be done without any extra condition check in code for the memmove() implementation or why would memcpy() fail in this situation. Please advice.
Thanks in advance,
Gsi.
|
by: sam |
last post by:
(newbie)Technically what's the difference between memset() and
memcpy() functions?
|
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...
|
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,...
|
| |
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...
|
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...
|
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();...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
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
|
