null this pointer c++

The problem is that this effectively dereferences a NULL pointer, so has in...

The problem is that this effectively dereferences a NULL pointer, so has in the current function/scope/whatever - possibly because the C++.

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In standard C++, it does not, because any call on a null pointer is already...

In standard C++, it does not, because any call on a null pointer is already undefined If this == null then that means the object is deleted.

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class MyClass { void Release(MyClass **ppObject) { assert(*pObject == this)...

class MyClass { void Release(MyClass **ppObject) { assert(*pObject == this); // Ensure the pointer passed in points at us *ppObject = NULL;.

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I am surprised it runs at all; *user1 = u1 Should make a deep copy of u1 an...

I am surprised it runs at all; *user1 = u1 Should make a deep copy of u1 and put it into user1. You should explicitly copy the pointers into user1.

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this will never be null in a member function so the check you perform is us...

this will never be null in a member function so the check you perform is useless. As has been pointed out, this can never be a null pointer.

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The problem, as was pointed out in comments, took place in processData func...

The problem, as was pointed out in comments, took place in processData function: it was writing over memory. I simply used strncpy instead of.

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In C++ you actually can dereference and call member functions on a NULL poi...

In C++ you actually can dereference and call member functions on a NULL pointer. Consider: Metadata* pointer = nullptr.

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What it probably shows is that debugging an optimised release mode build do...

What it probably shows is that debugging an optimised release mode build doesn't quite work. I'm not familiar with the details, but at least one.

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First of all according to the C++ standard (it follows from the paragraph i...

First of all according to the C++ standard (it follows from the paragraph in Visual C++ 9, as the pointer initially set to null is adjusted so that it.

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After that another function is called and the 'this' pointer is n...

After that another function is called and the 'this' pointer is null. The first C++ line in Bar() attempts to use 'this' which is null. So I am guessing.

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this pointer becomes NULL- C/C++ Help. Visit Dev Articles to discuss this p...

this pointer becomes NULL- C/C++ Help. Visit Dev Articles to discuss this pointer becomes NULL.

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C++ Null Pointers - Learn C++ in simple and easy steps starting from basic ...

C++ Null Pointers - Learn C++ in simple and easy steps starting from basic to advanced concepts with examples including C++ Overview, Environment Setup.

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According to the top answer here dwn.220.v.ua it's....

According to the top answer here dwn.220.v.ua it's.

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As of Visual C++ there is no check for this pointer for null. I get an acce...

As of Visual C++ there is no check for this pointer for null. I get an access violation when I try to use it but it does nothing until it is not used.

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7 - 4 | C++ | NULL Pointer + الزتونة بردو:D (Arabic بالعربي) - Duration: My...

7 - 4 | C++ | NULL Pointer + الزتونة بردو:D (Arabic بالعربي) - Duration: MyLegacy in Programming views ·

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