pointers - assignment operator vs. copy constructor C++ ...
Your version of copy constructor performs deep copying of data owned by the class (just like your assignmentoperator does). So, everything works correctly with your version of copy constructor.
12.7 — Introduction to pointers – Learn C++ - LearnCpp.com
Pointersandassignment. We can use assignment with pointers in two different ways: To change what the pointer is pointing at (by assigning the pointer a new address) To change the value being pointed at (by assigning the dereferenced pointer a new value) First, let’s look at a case where a pointer is changed to point at a different object:
Pointers - C++ Users
The main difference between the second and third statements is the appearance of the address-of operator (&). The variable that stores the address of another variable (like foo in the previous example) is what in C++ is called a pointer. Pointers are a very powerful feature of the language that has many uses in lower level programming.
Assignment operators - cppreference.com
The requirements on target-expr and new-value of built-in simple assignmentoperators also apply. Furthermore: For + = and -=, the type of target-expr must be an arithmetic type or a pointer to a (possibly cv-qualified) completely-defined object type. For all other compound assignmentoperators, the type of target-expr must be an arithmetic type.
21.12 — Overloading the assignment operator – Learn C++
Overloading the copy assignmentoperator (operator=) is fairly straightforward, with one specific caveat that we’ll get to. The copy assignment operator must be overloaded as a member function.
C Pointers Tutorial: Chapter 1 - University of Washington
We can "dereference" a pointer, i.e. refer to the value of that which it points to, by using the unary '*' operator as in *ptr. An "lvalue" of a variable is the value of its address, i.e. where it is stored in memory. The "rvalue" of a variable is the value stored in that variable (at that address). NEXT.
Assignment operators - cppreference.com
Assignment strips extra range and precision from floating-point expressions (see FLT_EVAL_METHOD). In C++, assignmentoperators are lvalue expressions, not so in C.
C++ Assignment Operators - W3Schools
Assignmentoperators are used to assign values to variables. In the example below, we use the assignment operator ( =) to assign the value 10 to a variable called x: Example. int x = 10; Try it Yourself » The addition assignment operator ( +=) adds a value to a variable: Example. int x = 10; x += 5; Try it Yourself »
4.3. Pointer Operators - Weber
Pointersand general operators. For this discussion, we'll call operators not specifically intended to work with pointers generaloperators. It's easier to understand how general operators behave when applied to pointers if we consider the relationship between the pointer and the data it points to.
The use of pointers allows low-level memory access, dynamic memory allocation, and many other functionality in C. In this article, we will discuss C pointers in detail, their types, uses, advantages, and disadvantages with examples.
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Your version of copy constructor performs deep copying of data owned by the class (just like your assignment operator does). So, everything works correctly with your version of copy constructor.
Pointers and assignment. We can use assignment with pointers in two different ways: To change what the pointer is pointing at (by assigning the pointer a new address) To change the value being pointed at (by assigning the dereferenced pointer a new value) First, let’s look at a case where a pointer is changed to point at a different object:
The main difference between the second and third statements is the appearance of the address-of operator (&). The variable that stores the address of another variable (like foo in the previous example) is what in C++ is called a pointer. Pointers are a very powerful feature of the language that has many uses in lower level programming.
The requirements on target-expr and new-value of built-in simple assignment operators also apply. Furthermore: For + = and -=, the type of target-expr must be an arithmetic type or a pointer to a (possibly cv-qualified) completely-defined object type. For all other compound assignment operators, the type of target-expr must be an arithmetic type.
Overloading the copy assignment operator (operator=) is fairly straightforward, with one specific caveat that we’ll get to. The copy assignment operator must be overloaded as a member function.
We can "dereference" a pointer, i.e. refer to the value of that which it points to, by using the unary '*' operator as in *ptr. An "lvalue" of a variable is the value of its address, i.e. where it is stored in memory. The "rvalue" of a variable is the value stored in that variable (at that address). NEXT.
Assignment strips extra range and precision from floating-point expressions (see FLT_EVAL_METHOD). In C++, assignment operators are lvalue expressions, not so in C.
Assignment operators are used to assign values to variables. In the example below, we use the assignment operator ( =) to assign the value 10 to a variable called x: Example. int x = 10; Try it Yourself » The addition assignment operator ( +=) adds a value to a variable: Example. int x = 10; x += 5; Try it Yourself »
Pointers and general operators. For this discussion, we'll call operators not specifically intended to work with pointers general operators. It's easier to understand how general operators behave when applied to pointers if we consider the relationship between the pointer and the data it points to.
The use of pointers allows low-level memory access, dynamic memory allocation, and many other functionality in C. In this article, we will discuss C pointers in detail, their types, uses, advantages, and disadvantages with examples.