C / C++ / MFC

Subramaniam wrote:

1. What a COPY CONSTRUCTOR actually does and when it is used..

Subramaniam wrote:

2. Please let me know as when we go about writing our own COPY CONSTRUCTORS(though system provides one by default)..

Subramaniam wrote:

3. What a assigment operator does and in what way is it different from COPY CONSTRUCTOR..

Jax_qqq wrote:

Hei Laxman r u giving Interview or what...

Jax_qqq wrote:

Hei Laxman r u giving Interview or wha

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Subramaniam wrote:

"When you want to give the limited access to your object's from copy
for e.g
by making it private only member functions can access and public access denied"

class CDemo
{
	int i;
	CDemo(CDemo &b)
	{
 	i=b.i;
	};
public:
	
	CDemo& operator=(const CDemo &b)
	{
		this->i=b.i;
		return *this;
	};

	CDemo(){}; //public constructer
	
	CDemo test()
	{
		return *this;
	}

};
int main(int argc, char* argv[])
{
	CDemo c;
	c=c.test();
	CDemo c1(c); //not allowed
        CDemo c2=c;  //even this also not allowed.
	return 0;
}

followait wrote:

I'v not seen any document that says WSARecv can return 0 in IOCP model.

vinaycool wrote:

m_SOUT.GetText(d,FName);
ShellExecute(m_hWnd, "open", FName, NULL, NULL, SW_SHOWNORMAL);

Vinay wrote:

List box contains a data like
C:\dir\filename.ext

Vinay wrote:

Hi Laxman,
I cant change the file path,because the items in the list box contains a data like
D:\Parichay\Box01\00000301\0123.txt

Can u please tell me how to open the file ???

vinaycool wrote:

I dont know how to do that can u please tell me how to alter the file name in the runtime...

vinaycool wrote:

how to alter the file name

#include <cstdio><br />
int rename(const char* oldname, const char* newname);