|
by: Rusty |
last post by:
Is there any way to use the STL algorithm for_each if my container
contains pointers? For example,
class A
{
int a;
virtual void print (void) {cout << a << endl;}
};
class B: public A
{
|
by: Old Wolf |
last post by:
I have a member function that acts on an object. I would also like to
have a member function that acts on a container of such objects,
using std::for_each. I tried:
#include <algorithm>
#include <functional>
struct bar {
template<typename T> void foo(T const &);
template<typename InIt> void foo(InIt begin, InIt end)
|
by: Robbie Hatley |
last post by:
I've got a function that I use a lot when making utility programs
that need to do the same thing to every directory in a tree.
Its prototype is:
unsigned long int CursDirs (void Func(void));
This just applies the fuction Func to every subdirectory of the
current directory. It works fine when I pass it pointers to regular
void-void functions.
|
by: Ioannis Vranos |
last post by:
What is the exact difference between mem_fun and mem_fun_ref, since in
all examples I looked at, they are used in exactly the same way?
--
Ioannis Vranos
http://www23.brinkster.com/noicys
|
by: ShaneG |
last post by:
We have ptr_fun to handle functions, mem_fun to handle member functions
that will be called through a pointer, and mem_fun_ref to handle member
functions that will be called through a reference.
First, why do we need to have seperate mem_fun/mem_fun_ref? The first
returns a mem_fun_t, and the second a mem_fun_ref_t. But the only
difference between mem_fun_t and mem_fun_ref_t is that they have
different operator() methods. But since...
|
|
by: shan_rish |
last post by:
Hi CLCers,
I coded a function to allocate memory and i am passing a pointer to the
function. The code is compiling but throws error and closes while
executing. The program is as below:
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *p;
void mem_fun(int *i);
|
by: amitmehrotra007 |
last post by:
I have an old fortran library which has a function f1 which expects a
function pointer to be passed to it of the type
double(*) (const double &)
I have a class Foo which has two functions
class Foo
{
public:
double f2 (const double &);
void f3 ();
|
by: joseph cook |
last post by:
I am getting a compile error on any compiler I try, so I know I have
an error here. Can anyone see it?
//includes
class Foo
{
public:
Foo(int a){m_hi = a;}
int hi(){return m_hi;}
|
by: subramanian100in |
last post by:
Suppose I have
class WordAndLineNumbers
{
public:
void print( );
// other member functions
private:
// data members
|
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: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
|
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: 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...
|
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...
|
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: 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
|