Except a few, most of the programs in C may be written with or without pointers. Then the question arises “Why use pointers if you can do without them?” Pointers are considered to be useful tools in programming because of the following reasons: (i) Pointers make the programs simple and...
we can have a pointer pointing to variables of any type. The type of pointer which points to a variable of type T is T *. However, note that irrespective of the type of a pointer variable, it holds an integer value, the memory address of the variable it points to. Thus, in a part...
The release notes for their compiler state that conversions between pointer to member types are not fully supported in the virtual inheritance case, and warns that compiler crashes or incorrect code generation may result if you try. This is a very nasty corner of the language. And then there'...
Note: In this article, “Python” will refer to the reference implementation of Python in C, otherwise known as CPython. As the article discusses some internals of the language, these notes are true for CPython 3.7 but may not be true in future or past iterations of the language....
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Final notes Iterators behave like pointers: can't I just use them? Our custom container is a wrapper around an old-school array, which can be navigated with pointer arithmetic. Indeed we could get rid of the whole Iterator class and just return a pointer to the first and last array elemen...
Notes 1. The cluster of water-filled sinkholes atop dissolving evaporites and locally known as “Hell’s Kettles” (Lat 54.492655, Long −1.567459) located to the south of Darlington, UK, formed in 1179 AD via a catastrophic collapse of the landsurface. A twelfth century annalist describes...
A collection of personal notes and thoughts on rvalue references, their role in move semantics and how they can significantly increase the performance of your applications. In my previous articleUnderstanding the meaning of lvalues and rvalues in C++I had the chance to explain to myself the logi...
I've used C++, C#, and MATLAB all in a short duration, so please forgive me.Still, the compiler might have given me a warning about the init in the "initializer".NOTES: I really did write this before I saw the other post (answer);...
Just like every variable in a program has an address, every function in a program too has an address. The name of the function can be used to obtain the address of a function. This address can be stored in a special type of variable which are pointers to