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The function foo is designed like that turns out to be bad, right? So my understanding is that the function foo either re-throws that exception within the catch clause or doesn't catch that...

Suppose someone else writes a function foo like this,



void foo()
{
try{
do something...
}
catch(CSomeException* e)

To enable memory leaks detection, where should I put _CrtDumpMemoryLeaks in the code? For example, in the program I define a class A. A member function Load is defined in class A. The function Load...

Here is the code,


#include <set>

using namespace std;

class A
{
public:

The problem is there is no way to decide whether it should return true or false when an exception is thrown. For example, when we call the statement "if thing one is not done" , it may throw an...

Here is the code(psedo code),


bool foo()
{
try{
if thing one is not done
return false;

if thing two is not done

Yes, DestroyWindow docs does reference CreateWindow and CreateWindowEx. Okey, I may assume if a window is created by calling CreateWindow, then it must be destroyed by calling DestroyWindow. But what...

If a window is created by calling Create, the function DestroyWindow must be called to destroyed it at the end? Thanks.

I thought case statement is like if statement. So in my example, when i is 4 and it meets case 1, then case 1 is not going to be entered. Why am I wrong? Thanks.

Actually, I expected the output to be just "zero". Since i is 4, so it doesn't satisfy case 1.

Here is the code,



int main()
{
int i=4;
switch(i)
{
default:printf("zero\n");

I already fixed a problem you mentioned. I am storing a pointer to a object in heap instead of a temporary object. I attach the updated project with the post. If I don't store pointers(bool*), what...

Okey, can I do something like this,



char s[64];
bool bVar = false;

sprintf(s, "This is a boolean variable bVar = %d", bVar);

I am attaching a sample project. Basically what this project does is that I initialize a variable map<CString, bool*> m_mapTest in CView::OnInitialUpdate and then pass the variable to CDocument...

If there is not boolean specifier, then what is supposed to be the specifier for boolean variable in C++? Thanks.

I did google it but didn't find the answer.

In the following exmple, how 'd I use sprintf when I have a boolean type of variable?


char s[64];
bool bVar = false;

sprintf(s, "This is a boolean variable bVar = %?", bVar);

What is...

If I drop this regular dll project and create a new MFC extension dll project, it will involve too much work. I wonder if there is relatively easier way to convert an existing regular dll project to...

Thanks for your reply. So in what situation the code is going to fail?

It is very simple. Here is the code,


//AClass.h
class AClass
{
public:
__declspec(dllexport) void foo();
__declspec(dllexport) void bar();
};

In my last post, I tried to explain that if I use dllexport only without using a macro to switch between dllexport and dllimport, my app still works. In other words, I don't see why I need dllimport....

Usually we use the following statements to export a class or member functions,



#ifdef DLLMICRO
#define DLLIO __declspec(dllexport)
#else
#define DLLIO __declspec(dllimport)
#endif

Thanks for the clarification!

It is a shame I didn't know that. Thanks a lot for the tutorial.

Here is the code,


#include <iostream>

using namespace std;

class B
{
public: